삽질하다 도저히 문제 파악이 안돼서 opcUaManager로 분리 테스트 중

2026-02-25 08:52:03 +09:00
parent 4ea351946a
commit e88ab87771
138 changed files with 1051971 additions and 351 deletions
--- a/opcUaManager/Controllers/CertController.cs
+++ b/opcUaManager/Controllers/CertController.cs
@@ -0,0 +1,83 @@
+using Microsoft.AspNetCore.Mvc;
+using OpcUaManager.Models;
+using OpcUaManager.Services;
+
+namespace OpcUaManager.Controllers;
+
+[ApiController]
+[Route("api/cert")]
+[Produces("application/json")]
+public class CertController : ControllerBase
+{
+    private readonly CertService _certService;
+    private readonly ILogger<CertController> _logger;
+
+    public CertController(CertService certService, ILogger<CertController> logger)
+    {
+        _certService = certService;
+        _logger      = logger;
+    }
+
+    /// <summary>
+    /// X.509 클라이언트 인증서를 생성하고 pki/own/certs/ 에 PFX로 저장합니다.
+    /// </summary>
+    /// <remarks>
+    /// 원본 Program.cs 의 인증서 체계(pki/ 폴더, Exportable|MachineKeySet 플래그)를 유지합니다.
+    ///
+    /// Sample request:
+    ///
+    ///     POST /api/cert/generate
+    ///     {
+    ///         "clientHostName": "dbsvr",
+    ///         "applicationName": "OpcTestClient",
+    ///         "serverHostName": "opc-server-01",
+    ///         "serverIp": "192.168.0.20",
+    ///         "pfxPassword": "",
+    ///         "validDays": 365
+    ///     }
+    /// </remarks>
+    [HttpPost("generate")]
+    [ProducesResponseType(typeof(CertCreateResult), 200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Generate([FromBody] CertCreateRequest req)
+    {
+        if (string.IsNullOrWhiteSpace(req.ClientHostName) ||
+            string.IsNullOrWhiteSpace(req.ApplicationName))
+            return BadRequest(new ApiError
+            {
+                Error  = "필수값 누락",
+                Detail = "ClientHostName, ApplicationName 은 필수입니다."
+            });
+
+        _logger.LogInformation("인증서 생성 요청: {Host}/{App}", req.ClientHostName, req.ApplicationName);
+
+        var result = await _certService.GenerateAsync(req);
+
+        if (!result.Success)
+            return BadRequest(new ApiError { Error = "인증서 생성 실패", Detail = result.Message });
+
+        return Ok(result);
+    }
+
+    /// <summary>pki/own/certs/ 폴더의 PFX 파일 목록을 반환합니다.</summary>
+    [HttpGet("list")]
+    [ProducesResponseType(typeof(IEnumerable<string>), 200)]
+    public IActionResult List()
+        => Ok(_certService.ListCertificates());
+
+    /// <summary>PFX 파일을 다운로드합니다.</summary>
+    [HttpGet("download/{fileName}")]
+    public IActionResult Download(string fileName)
+    {
+        // 경로 traversal 방지
+        if (fileName.Contains("..") || fileName.Contains('/') || fileName.Contains('\\'))
+            return BadRequest(new ApiError { Error = "잘못된 파일 이름" });
+
+        string path = Path.Combine("pki", "own", "certs", fileName);
+        if (!System.IO.File.Exists(path))
+            return NotFound(new ApiError { Error = "파일 없음", Detail = path });
+
+        byte[] bytes = System.IO.File.ReadAllBytes(path);
+        return File(bytes, "application/x-pkcs12", fileName);
+    }
+}
--- a/opcUaManager/Controllers/CrawlerController.cs
+++ b/opcUaManager/Controllers/CrawlerController.cs
@@ -0,0 +1,75 @@
+using Microsoft.AspNetCore.Mvc;
+using OpcUaManager.Models;
+using OpcUaManager.Services;
+
+namespace OpcUaManager.Controllers;
+
+[ApiController]
+[Route("api/crawler")]
+[Produces("application/json")]
+public class CrawlerController : ControllerBase
+{
+    private readonly OpcCrawlerService _crawlerSvc;
+    private readonly OpcSessionService _sessionSvc;
+    private readonly ILogger<CrawlerController> _logger;
+
+    public CrawlerController(
+        OpcCrawlerService crawlerSvc,
+        OpcSessionService sessionSvc,
+        ILogger<CrawlerController> logger)
+    {
+        _crawlerSvc = crawlerSvc;
+        _sessionSvc = sessionSvc;
+        _logger     = logger;
+    }
+
+    /// <summary>
+    /// 지정한 시작 노드부터 OPC UA 노드 트리를 재귀 탐색합니다.
+    /// </summary>
+    /// <remarks>
+    /// Sample request:
+    ///
+    ///     POST /api/crawler/start
+    ///     {
+    ///         "startNodeId": "ns=1;s=$assetmodel",
+    ///         "maxDepth": 5
+    ///     }
+    ///
+    /// 탐색 결과는 응답 JSON 과 함께 서버 로컬에 Honeywell_FullMap.csv 로 저장됩니다.
+    /// </remarks>
+    [HttpPost("start")]
+    [ProducesResponseType(typeof(CrawlResult), 200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Start([FromBody] CrawlRequest req)
+    {
+        if (!_sessionSvc.IsConnected)
+            return BadRequest(new ApiError
+            {
+                Error  = "세션 없음",
+                Detail = "먼저 /api/session/connect 로 OPC 서버에 연결하세요."
+            });
+
+        _logger.LogInformation("Crawler 시작: {NodeId} (depth={Depth})",
+            req.StartNodeId, req.MaxDepth);
+
+        // 대규모 탐사는 시간이 오래 걸릴 수 있으므로 타임아웃을 늘려줍니다
+        HttpContext.RequestAborted.ThrowIfCancellationRequested();
+
+        var result = await _crawlerSvc.CrawlAsync(req);
+
+        return result.Success ? Ok(result)
+            : BadRequest(new ApiError { Error = "탐사 실패", Detail = result.Message });
+    }
+
+    /// <summary>마지막 탐사로 생성된 CSV 파일을 다운로드합니다.</summary>
+    [HttpGet("csv")]
+    public IActionResult DownloadCsv()
+    {
+        string path = Path.GetFullPath("Honeywell_FullMap.csv");
+        if (!System.IO.File.Exists(path))
+            return NotFound(new ApiError { Error = "CSV 없음", Detail = "탐사를 먼저 실행하세요." });
+
+        byte[] bytes = System.IO.File.ReadAllBytes(path);
+        return File(bytes, "text/csv", "Honeywell_FullMap.csv");
+    }
+}
--- a/opcUaManager/Controllers/DatabaseController.cs
+++ b/opcUaManager/Controllers/DatabaseController.cs
@@ -0,0 +1,98 @@
+using Microsoft.AspNetCore.Mvc;
+using OpcUaManager.Models;
+using OpcUaManager.Services;
+
+namespace OpcUaManager.Controllers;
+
+[ApiController]
+[Route("api/database")]
+[Produces("application/json")]
+public class DatabaseController : ControllerBase
+{
+    private readonly DatabaseService _dbSvc;
+    private readonly ILogger<DatabaseController> _logger;
+
+    public DatabaseController(DatabaseService dbSvc, ILogger<DatabaseController> logger)
+    {
+        _dbSvc  = dbSvc;
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// DB 연결을 테스트합니다.
+    /// </summary>
+    [HttpPost("test")]
+    [ProducesResponseType(200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Test([FromBody] DbWriteRequest req)
+    {
+        var (ok, msg) = await _dbSvc.TestConnectionAsync(req);
+        return ok ? Ok(new { Message = msg })
+                  : BadRequest(new ApiError { Error = "연결 실패", Detail = msg });
+    }
+
+    /// <summary>
+    /// opc_history 테이블을 없으면 생성합니다.
+    /// </summary>
+    [HttpPost("init")]
+    [ProducesResponseType(200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Init([FromBody] DbWriteRequest req)
+    {
+        var (ok, msg) = await _dbSvc.EnsureTableAsync(req);
+        return ok ? Ok(new { Message = msg })
+                  : BadRequest(new ApiError { Error = "테이블 초기화 실패", Detail = msg });
+    }
+
+    /// <summary>
+    /// OPC 태그를 지정 횟수만큼 읽어 DB에 저장합니다 (원본 5회 루프).
+    /// </summary>
+    /// <remarks>
+    /// Sample request:
+    ///
+    ///     POST /api/database/write
+    ///     {
+    ///         "tagNodeId":  "ns=1;s=shinam:p-6102.hzset.fieldvalue",
+    ///         "tagName":    "p-6102",
+    ///         "count":      5,
+    ///         "intervalMs": 2000,
+    ///         "dbHost":     "localhost",
+    ///         "dbName":     "opcdb",
+    ///         "dbUser":     "postgres",
+    ///         "dbPassword": "postgres"
+    ///     }
+    /// </remarks>
+    [HttpPost("write")]
+    [ProducesResponseType(typeof(DbWriteResult), 200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Write([FromBody] DbWriteRequest req)
+    {
+        if (string.IsNullOrWhiteSpace(req.TagNodeId) || string.IsNullOrWhiteSpace(req.TagName))
+            return BadRequest(new ApiError
+            {
+                Error  = "필수값 누락",
+                Detail = "TagNodeId, TagName 은 필수입니다."
+            });
+
+        req.Count = Math.Clamp(req.Count, 1, 100);
+
+        _logger.LogInformation("DB 저장 시작: {Tag} × {Count}회", req.TagName, req.Count);
+        var result = await _dbSvc.WriteLoopAsync(req);
+
+        return result.Success ? Ok(result)
+            : BadRequest(new ApiError { Error = "저장 실패", Detail = result.Message });
+    }
+
+    /// <summary>
+    /// opc_history 테이블의 최근 레코드를 조회합니다.
+    /// </summary>
+    [HttpPost("query")]
+    [ProducesResponseType(typeof(DbQueryResult), 200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Query([FromBody] DbWriteRequest req, [FromQuery] int limit = 100)
+    {
+        var result = await _dbSvc.QueryRecentAsync(req, limit);
+        return result.Success ? Ok(result)
+            : BadRequest(new ApiError { Error = "조회 실패", Detail = result.Message });
+    }
+}
--- a/opcUaManager/Controllers/SessionController.cs
+++ b/opcUaManager/Controllers/SessionController.cs
@@ -0,0 +1,74 @@
+using Microsoft.AspNetCore.Mvc;
+using OpcUaManager.Models;
+using OpcUaManager.Services;
+
+namespace OpcUaManager.Controllers;
+
+[ApiController]
+[Route("api/session")]
+[Produces("application/json")]
+public class SessionController : ControllerBase
+{
+    private readonly OpcSessionService _sessionSvc;
+    private readonly ILogger<SessionController> _logger;
+
+    public SessionController(OpcSessionService sessionSvc, ILogger<SessionController> logger)
+    {
+        _sessionSvc = sessionSvc;
+        _logger     = logger;
+    }
+
+    /// <summary>
+    /// OPC UA 서버에 연결합니다.
+    /// </summary>
+    /// <remarks>
+    /// Sample request:
+    ///
+    ///     POST /api/session/connect
+    ///     {
+    ///         "serverIp": "192.168.0.20",
+    ///         "port": 4840,
+    ///         "userName": "mngr",
+    ///         "password": "mngr",
+    ///         "securityPolicy": "Basic256Sha256",
+    ///         "sessionTimeoutMs": 60000,
+    ///         "pfxPath": "pki/own/certs/OpcTestClient.pfx",
+    ///         "pfxPassword": "",
+    ///         "applicationName": "OpcTestClient",
+    ///         "applicationUri": "urn:dbsvr:OpcTestClient"
+    ///     }
+    /// </remarks>
+    [HttpPost("connect")]
+    [ProducesResponseType(typeof(ConnectResult), 200)]
+    [ProducesResponseType(typeof(ApiError), 400)]
+    public async Task<IActionResult> Connect([FromBody] ConnectRequest req)
+    {
+        if (string.IsNullOrWhiteSpace(req.ServerIp))
+            return BadRequest(new ApiError { Error = "ServerIp 는 필수입니다." });
+
+        _logger.LogInformation("연결 요청: {Ip}:{Port}", req.ServerIp, req.Port);
+        var result = await _sessionSvc.ConnectAsync(req);
+
+        return result.Success ? Ok(result)
+            : BadRequest(new ApiError { Error = "연결 실패", Detail = result.Message });
+    }
+
+    /// <summary>현재 OPC UA 세션을 종료합니다.</summary>
+    [HttpPost("disconnect")]
+    [ProducesResponseType(200)]
+    public async Task<IActionResult> Disconnect()
+    {
+        await _sessionSvc.DisconnectAsync();
+        return Ok(new { Message = "세션 종료 완료" });
+    }
+
+    /// <summary>현재 세션 상태를 반환합니다.</summary>
+    [HttpGet("status")]
+    [ProducesResponseType(200)]
+    public IActionResult Status()
+        => Ok(new
+        {
+            IsConnected = _sessionSvc.IsConnected,
+            SessionId   = _sessionSvc.SessionId
+        });
+}
--- a/opcUaManager/Models/Models.cs
+++ b/opcUaManager/Models/Models.cs
@@ -0,0 +1,172 @@
+namespace OpcUaManager.Models;
+
+// ── 인증서 관련 ────────────────────────────────────────────────
+
+/// <summary>프론트엔드에서 전달받는 인증서 생성 요청</summary>
+public class CertCreateRequest
+{
+    /// <summary>내 컴퓨터(클라이언트) 호스트명 e.g. "dbsvr"</summary>
+    public string ClientHostName { get; set; } = string.Empty;
+
+    /// <summary>OPC Application 이름 e.g. "OpcTestClient"</summary>
+    public string ApplicationName { get; set; } = string.Empty;
+
+    /// <summary>상대 OPC 서버 호스트명 (SAN DNS) e.g. "opc-server-01"</summary>
+    public string ServerHostName { get; set; } = string.Empty;
+
+    /// <summary>상대 OPC 서버 IP (SAN IP) e.g. "192.168.0.20"</summary>
+    public string ServerIp { get; set; } = string.Empty;
+
+    /// <summary>PFX 비밀번호 (없으면 빈 문자열)</summary>
+    public string PfxPassword { get; set; } = string.Empty;
+
+    /// <summary>인증서 유효 기간(일)</summary>
+    public int ValidDays { get; set; } = 365;
+}
+
+/// <summary>인증서 생성 결과</summary>
+public class CertCreateResult
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+
+    /// <summary>생성된 PFX 파일의 서버 내 절대 경로</summary>
+    public string PfxPath { get; set; } = string.Empty;
+
+    /// <summary>적용된 Application URI</summary>
+    public string ApplicationUri { get; set; } = string.Empty;
+
+    /// <summary>썸프린트(SHA-1 hex)</summary>
+    public string Thumbprint { get; set; } = string.Empty;
+
+    public string SerialNumber { get; set; } = string.Empty;
+    public string NotBefore { get; set; } = string.Empty;
+    public string NotAfter { get; set; } = string.Empty;
+}
+
+// ── OPC 세션 관련 ────────────────────────────────────────────
+
+public class ConnectRequest
+{
+    public string ServerIp { get; set; } = string.Empty;
+    public int Port { get; set; } = 4840;
+    public string UserName { get; set; } = string.Empty;
+    public string Password { get; set; } = string.Empty;
+    public string SecurityPolicy { get; set; } = "Basic256Sha256";
+    public int SessionTimeoutMs { get; set; } = 60000;
+
+    /// <summary>사용할 PFX 경로 (cert 생성 후 전달)</summary>
+    public string PfxPath { get; set; } = string.Empty;
+    public string PfxPassword { get; set; } = string.Empty;
+    public string ApplicationName { get; set; } = "OpcTestClient";
+    public string ApplicationUri { get; set; } = string.Empty;
+}
+
+public class ConnectResult
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+    public string SessionId { get; set; } = string.Empty;
+    public string EndpointUrl { get; set; } = string.Empty;
+    public string SecurityMode { get; set; } = string.Empty;
+}
+
+// ── Crawler 관련 ─────────────────────────────────────────────
+
+public class CrawlRequest
+{
+    public string StartNodeId { get; set; } = "ns=1;s=$assetmodel";
+    public int MaxDepth { get; set; } = 5;
+}
+
+public class TagMaster
+{
+    public string TagName { get; set; } = string.Empty;
+    public string FullNodeId { get; set; } = string.Empty;
+    public string NodeClass { get; set; } = string.Empty;
+    public string DataType { get; set; } = string.Empty;
+    public int Level { get; set; }
+}
+
+public class CrawlResult
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+    public int TotalNodes { get; set; }
+    public List<TagMaster> Tags { get; set; } = [];
+    public string CsvPath { get; set; } = string.Empty;
+}
+
+// ── Database 관련 ─────────────────────────────────────────────
+
+public class DbWriteRequest
+{
+    /// <summary>읽을 OPC 태그 Node ID</summary>
+    public string TagNodeId { get; set; } = string.Empty;
+
+    /// <summary>DB에 저장할 태그 이름</summary>
+    public string TagName { get; set; } = string.Empty;
+
+    /// <summary>반복 횟수</summary>
+    public int Count { get; set; } = 5;
+
+    /// <summary>읽기 간격 (ms)</summary>
+    public int IntervalMs { get; set; } = 2000;
+
+    // DB 접속 정보
+    public string DbHost { get; set; } = "localhost";
+    public string DbName { get; set; } = "opcdb";
+    public string DbUser { get; set; } = "postgres";
+    public string DbPassword { get; set; } = "postgres";
+}
+
+public class DbWriteRecord
+{
+    public int Seq { get; set; }
+    public DateTime Timestamp { get; set; }
+    public string TagName { get; set; } = string.Empty;
+    public double Value { get; set; }
+    public string StatusCode { get; set; } = string.Empty;
+    public bool DbSaved { get; set; }
+}
+
+public class DbWriteResult
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+    public int SavedCount { get; set; }
+    public List<DbWriteRecord> Records { get; set; } = [];
+}
+
+public class DbQueryResult
+{
+    public bool Success { get; set; }
+    public string Message { get; set; } = string.Empty;
+    public int TotalCount { get; set; }
+    public List<OpcHistoryRow> Rows { get; set; } = [];
+}
+
+public class OpcHistoryRow
+{
+    public long Id { get; set; }
+    public string TagName { get; set; } = string.Empty;
+    public double TagValue { get; set; }
+    public string StatusCode { get; set; } = string.Empty;
+    public DateTime CreatedAt { get; set; }
+}
+
+// ── 공통 ─────────────────────────────────────────────────────
+
+public class StatusCodeInfo
+{
+    public string Name { get; set; } = string.Empty;
+    public string Hex { get; set; } = string.Empty;
+    public ulong Decimal { get; set; }
+    public string Description { get; set; } = string.Empty;
+}
+
+public class ApiError
+{
+    public string Error { get; set; } = string.Empty;
+    public string Detail { get; set; } = string.Empty;
+}
--- a/opcUaManager/OpcUaManager.csproj
+++ b/opcUaManager/OpcUaManager.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>OpcUaManager</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="OPCFoundation.NetStandard.Opc.Ua.Client" Version="1.5.374.70" />
+    <PackageReference Include="Npgsql" Version="8.0.3" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+  </ItemGroup>
+
+</Project>
--- a/opcUaManager/Program.cs
+++ b/opcUaManager/Program.cs
@@ -0,0 +1,90 @@
+using OpcUaManager.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// ── DI 등록 ───────────────────────────────────────────────────────────
+builder.Services.AddSingleton<OpcSessionService>();
+builder.Services.AddSingleton<CertService>();
+builder.Services.AddSingleton<OpcCrawlerService>();
+builder.Services.AddSingleton<DatabaseService>();
+
+builder.Services.AddControllers()
+    .AddJsonOptions(opt =>
+    {
+        opt.JsonSerializerOptions.Converters.Add(
+            new System.Text.Json.Serialization.JsonStringEnumConverter());
+        opt.JsonSerializerOptions.PropertyNamingPolicy =
+            System.Text.Json.JsonNamingPolicy.CamelCase;
+    });
+
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen(opt =>
+{
+    opt.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo
+    {
+        Title   = "OPC UA Manager API",
+        Version = "v1",
+        Description = "OPC UA 클라이언트 인증서 생성 · 세션 관리 · 노드 탐색 · DB 저장"
+    });
+});
+
+builder.Services.AddCors(opt =>
+{
+    opt.AddDefaultPolicy(policy =>
+        policy.AllowAnyOrigin()
+              .AllowAnyHeader()
+              .AllowAnyMethod());
+});
+
+// ── 앱 빌드 ───────────────────────────────────────────────────────────
+var app = builder.Build();
+
+// ── 정적 파일: wwwroot 경로를 명시적으로 지정 ─────────────────────────
+// dotnet run 실행 위치와 무관하게 프로젝트 루트의 wwwroot 를 서빙
+var wwwrootPath = Path.Combine(
+    builder.Environment.ContentRootPath, "wwwroot");
+
+if (!Directory.Exists(wwwrootPath))
+{
+    // dotnet run 이 프로젝트 루트가 아닌 곳에서 실행될 경우 대비
+    wwwrootPath = Path.Combine(
+        AppContext.BaseDirectory, "wwwroot");
+}
+
+app.Logger.LogInformation("wwwroot 경로: {Path}", wwwrootPath);
+
+app.UseDefaultFiles(new DefaultFilesOptions
+{
+    FileProvider = new Microsoft.Extensions.FileProviders.PhysicalFileProvider(wwwrootPath),
+    RequestPath  = ""
+});
+app.UseStaticFiles(new StaticFileOptions
+{
+    FileProvider = new Microsoft.Extensions.FileProviders.PhysicalFileProvider(wwwrootPath),
+    RequestPath  = ""
+});
+
+app.UseSwagger();
+app.UseSwaggerUI(opt =>
+{
+    opt.SwaggerEndpoint("/swagger/v1/swagger.json", "OPC UA Manager v1");
+    opt.RoutePrefix = "swagger";
+});
+
+app.UseCors();
+app.UseAuthorization();
+app.MapControllers();
+
+// ── PKI 디렉토리 초기화 ───────────────────────────────────────────────
+foreach (var dir in new[]
+{
+    "pki/own/certs", "pki/trusted/certs",
+    "pki/issuers/certs", "pki/rejected/certs"
+})
+    Directory.CreateDirectory(dir);
+
+app.Logger.LogInformation("=== OPC UA Manager 시작 ===");
+app.Logger.LogInformation("Frontend : http://localhost:5000/");
+app.Logger.LogInformation("Swagger  : http://localhost:5000/swagger");
+
+app.Run();
--- a/opcUaManager/README.md
+++ b/opcUaManager/README.md
@@ -0,0 +1,99 @@
+# OPC UA Manager
+
+원본 `Program.cs` (단일 파일)를 **ASP.NET Core Web API + 프론트엔드** 프로젝트로 분리한 버전입니다.
+
+## 프로젝트 구조
+
+```
+OpcUaManager/
+├── OpcUaManager.csproj
+├── Program.cs                    ← ASP.NET Core 진입점, DI 등록
+├── appsettings.json
+├── init_db.sql                   ← PostgreSQL 테이블 초기화
+│
+├── Models/
+│   └── Models.cs                 ← DTO / 도메인 모델 전체
+│
+├── Services/
+│   ├── CertService.cs            ← X.509 인증서 생성 (pki/ 폴더 체계 유지)
+│   ├── OpcSessionService.cs      ← OPC UA 세션 관리 (Singleton)
+│   ├── OpcCrawlerService.cs      ← HoneywellCrawler 로직 → Service 분리
+│   └── DatabaseService.cs        ← PostgreSQL 저장/조회 (SaveToDatabase 패턴 유지)
+│
+├── Controllers/
+│   ├── CertController.cs         ← POST /api/cert/generate
+│   ├── SessionController.cs      ← POST /api/session/connect|disconnect
+│   ├── CrawlerController.cs      ← POST /api/crawler/start
+│   └── DatabaseController.cs     ← POST /api/database/write|query|test
+│
+└── wwwroot/
+    └── index.html                ← 프론트엔드 (단일 HTML, 백엔드 API 연결)
+```
+
+## 원본 코드와의 대응 관계
+
+| 원본 코드 위치 | 분리된 위치 |
+|---|---|
+| `Directory.CreateDirectory("pki/...")` | `CertService.EnsurePkiDirectories()` |
+| `new X509Certificate2(pfxPath, ...)` | `CertService.LoadPfx()` |
+| `ApplicationConfiguration { ... }` | `OpcSessionService.ConnectAsync()` |
+| `DiscoveryClient → Session.Create` | `OpcSessionService.ConnectAsync()` |
+| `HoneywellCrawler.BrowseRecursiveAsync` | `OpcCrawlerService.CrawlAsync()` |
+| `HoneywellCrawler.SaveToCsv` | `OpcCrawlerService.SaveToCsvAsync()` |
+| `SaveToDatabase(tagName, val, status)` | `DatabaseService.SaveToDatabaseAsync()` |
+| `for (int i = 0; i < 5; i++) { ... }` | `DatabaseService.WriteLoopAsync()` |
+
+**원본 인증서 체계 유지 항목:**
+- `pki/own/certs/`, `pki/trusted/certs/`, `pki/issuers/certs/`, `pki/rejected/certs/` 폴더 구조
+- `X509KeyStorageFlags.Exportable | MachineKeySet`
+- `AutoAcceptUntrustedCertificates = true`, `AddAppCertToTrustedStore = true`
+- OPC UA SAN(Subject Alternative Name) 에 `ApplicationUri` 포함 (필수 요구사항)
+
+## 실행 방법
+
+### 1. PostgreSQL 초기화
+```bash
+createdb opcdb
+psql -U postgres -d opcdb -f init_db.sql
+```
+
+### 2. 백엔드 실행
+```bash
+cd OpcUaManager
+dotnet restore
+dotnet run
+# → http://localhost:5000
+# → Swagger: http://localhost:5000/swagger
+```
+
+### 3. 프론트엔드 접속
+브라우저에서 `http://localhost:5000` 접속
+(또는 `wwwroot/index.html` 을 별도 Live Server로 열고 API URL을 `http://localhost:5000` 으로 설정)
+
+## API 엔드포인트 요약
+
+```
+POST /api/cert/generate          인증서 생성
+GET  /api/cert/list              PFX 목록 조회
+GET  /api/cert/download/{name}   PFX 다운로드
+
+POST /api/session/connect        OPC 연결
+POST /api/session/disconnect     OPC 연결 해제
+GET  /api/session/status         세션 상태
+
+POST /api/crawler/start          노드 탐사 시작
+GET  /api/crawler/csv            CSV 다운로드
+
+POST /api/database/test          DB 연결 테스트
+POST /api/database/init          테이블 초기화
+POST /api/database/write         OPC 읽기 + DB 저장 (N회)
+POST /api/database/query         최근 레코드 조회
+```
+
+## 의존 패키지
+
+```xml
+OPCFoundation.NetStandard.Opc.Ua.Client  1.5.x
+Npgsql                                    8.0.x
+Swashbuckle.AspNetCore                   6.6.x
+```
--- a/opcUaManager/Services/CertService.cs
+++ b/opcUaManager/Services/CertService.cs
@@ -0,0 +1,158 @@
+using System.Security.Cryptography;
+using System.Security.Cryptography.X509Certificates;
+using OpcUaManager.Models;
+
+namespace OpcUaManager.Services;
+
+/// <summary>
+/// OPC UA 클라이언트용 X.509 인증서를 생성하고 PFX로 저장합니다.
+/// 원본 Program.cs 의 인증서 체계(pki/ 폴더 구조, X509KeyStorageFlags)를 유지합니다.
+/// </summary>
+public class CertService
+{
+    private readonly ILogger<CertService> _logger;
+    private readonly string _pkiRoot;
+
+    public CertService(ILogger<CertService> logger, IWebHostEnvironment env)
+    {
+        _logger  = logger;
+        _pkiRoot = Path.Combine(env.ContentRootPath, "pki");
+    }
+
+    private void EnsurePkiDirectories()
+    {
+        Directory.CreateDirectory(Path.Combine(_pkiRoot, "own",      "certs"));
+        Directory.CreateDirectory(Path.Combine(_pkiRoot, "trusted",  "certs"));
+        Directory.CreateDirectory(Path.Combine(_pkiRoot, "issuers",  "certs"));
+        Directory.CreateDirectory(Path.Combine(_pkiRoot, "rejected", "certs"));
+    }
+
+    public Task<CertCreateResult> GenerateAsync(CertCreateRequest req)
+    {
+        try
+        {
+            EnsurePkiDirectories();
+
+            string appUri = $"urn:{req.ClientHostName}:{req.ApplicationName}";
+
+            // ── 1. RSA 키 생성 ────────────────────────────────────────
+            using var rsa = RSA.Create(2048);
+
+            // ── 2. Distinguished Name ──────────────────────────────────
+            var dn = new X500DistinguishedName(
+                $"CN={req.ApplicationName}, O={req.ClientHostName}, C=KR");
+
+            // ── 3. Certificate Request ─────────────────────────────────
+            var certReq = new CertificateRequest(
+                dn, rsa, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
+
+            // ── 4. Extensions ──────────────────────────────────────────
+            certReq.CertificateExtensions.Add(
+                new X509BasicConstraintsExtension(false, false, 0, true));
+
+            certReq.CertificateExtensions.Add(
+                new X509KeyUsageExtension(
+                    X509KeyUsageFlags.DigitalSignature |
+                    X509KeyUsageFlags.NonRepudiation   |
+                    X509KeyUsageFlags.KeyEncipherment  |
+                    X509KeyUsageFlags.DataEncipherment,
+                    critical: true));
+
+            certReq.CertificateExtensions.Add(
+                new X509EnhancedKeyUsageExtension(
+                    new OidCollection
+                    {
+                        new Oid("1.3.6.1.5.5.7.3.2"),  // clientAuth
+                        new Oid("1.3.6.1.5.5.7.3.1")   // serverAuth
+                    }, false));
+
+            certReq.CertificateExtensions.Add(
+                new X509SubjectKeyIdentifierExtension(certReq.PublicKey, false));
+
+            // ── 5. Subject Alternative Names ──────────────────────────
+            var sanBuilder = new SubjectAlternativeNameBuilder();
+            sanBuilder.AddUri(new Uri(appUri));
+
+            if (!string.IsNullOrWhiteSpace(req.ServerIp) &&
+                System.Net.IPAddress.TryParse(req.ServerIp, out var ip))
+                sanBuilder.AddIpAddress(ip);
+
+            if (!string.IsNullOrWhiteSpace(req.ServerHostName))
+                sanBuilder.AddDnsName(req.ServerHostName);
+
+            sanBuilder.AddDnsName(req.ClientHostName);
+            sanBuilder.AddDnsName("localhost");
+
+            certReq.CertificateExtensions.Add(sanBuilder.Build());
+
+            // ── 6. 자체 서명 인증서 생성 ──────────────────────────────
+            var notBefore = DateTimeOffset.UtcNow.AddMinutes(-5);
+            var notAfter  = notBefore.AddDays(req.ValidDays);
+
+            // FIX: CreateSelfSigned 는 이미 RSA 키가 연결된 X509Certificate2 를 반환함
+            // → CopyWithPrivateKey() 를 추가로 호출하면
+            //   "The certificate already has an associated private key" 에러 발생
+            // → CreateSelfSigned 결과를 직접 Export(Pfx) 하면 개인키 포함됨
+            using var certWithKey = certReq.CreateSelfSigned(notBefore, notAfter);
+
+            // ── 7. PFX 내보내기 ───────────────────────────────────────
+            string pfxPassword = string.IsNullOrEmpty(req.PfxPassword) ? "" : req.PfxPassword;
+
+            // .NET 9 이상: X509CertificateLoader 권장이지만 net8 에서는 Export 사용
+            byte[] pfxBytes = certWithKey.Export(X509ContentType.Pfx, pfxPassword);
+
+            string pfxFileName = $"{req.ApplicationName}.pfx";
+            string pfxPath     = Path.Combine(_pkiRoot, "own", "certs", pfxFileName);
+            File.WriteAllBytes(pfxPath, pfxBytes);
+
+            // ── 8. Trusted 폴더에 DER(공개키) 복사 ───────────────────
+            byte[] derBytes = certWithKey.Export(X509ContentType.Cert);
+            string derPath  = Path.Combine(_pkiRoot, "trusted", "certs",
+                $"{req.ApplicationName}[{certWithKey.Thumbprint}].der");
+            File.WriteAllBytes(derPath, derBytes);
+
+            _logger.LogInformation(
+                "인증서 생성 완료 → {PfxPath} | Thumbprint: {Thumbprint}",
+                pfxPath, certWithKey.Thumbprint);
+
+            return Task.FromResult(new CertCreateResult
+            {
+                Success        = true,
+                Message        = $"인증서 생성 완료: {pfxFileName}",
+                PfxPath        = pfxPath,
+                ApplicationUri = appUri,
+                Thumbprint     = certWithKey.Thumbprint ?? string.Empty,
+                SerialNumber   = certWithKey.SerialNumber ?? string.Empty,
+                NotBefore      = notBefore.ToString("yyyy-MM-dd HH:mm:ss UTC"),
+                NotAfter       = notAfter.ToString("yyyy-MM-dd HH:mm:ss UTC"),
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "인증서 생성 실패");
+            return Task.FromResult(new CertCreateResult
+            {
+                Success = false,
+                Message = $"인증서 생성 실패: {ex.Message}"
+            });
+        }
+    }
+
+    /// <summary>
+    /// 기존 PFX를 로드합니다 (원본 코드와 동일한 플래그).
+    /// </summary>
+    public X509Certificate2 LoadPfx(string pfxPath, string pfxPassword)
+    {
+        return new X509Certificate2(
+            pfxPath,
+            pfxPassword,
+            X509KeyStorageFlags.Exportable | X509KeyStorageFlags.MachineKeySet);
+    }
+
+    public IEnumerable<string> ListCertificates()
+    {
+        string dir = Path.Combine(_pkiRoot, "own", "certs");
+        if (!Directory.Exists(dir)) return [];
+        return Directory.GetFiles(dir, "*.pfx").Select(Path.GetFileName)!;
+    }
+}
--- a/opcUaManager/Services/DatabaseService.cs
+++ b/opcUaManager/Services/DatabaseService.cs
@@ -0,0 +1,223 @@
+using Npgsql;
+using OpcUaManager.Models;
+
+namespace OpcUaManager.Services;
+
+/// <summary>
+/// PostgreSQL opc_history 테이블에 대한 읽기/쓰기를 담당합니다.
+/// 원본 SaveToDatabase 함수의 INSERT 패턴을 그대로 유지하며,
+/// OPC 태그 읽기(OpcSessionService)와 DB 저장을 조율합니다.
+/// </summary>
+public class DatabaseService
+{
+    private readonly ILogger<DatabaseService> _logger;
+    private readonly OpcSessionService        _sessionSvc;
+
+    public DatabaseService(ILogger<DatabaseService> logger, OpcSessionService sessionSvc)
+    {
+        _logger     = logger;
+        _sessionSvc = sessionSvc;
+    }
+
+    // ── 연결 문자열 빌더 ──────────────────────────────────────────────
+
+    private static string BuildConnString(DbWriteRequest req)
+        => $"Host={req.DbHost};Username={req.DbUser};Password={req.DbPassword};Database={req.DbName}";
+
+    // ── DB/테이블 초기화 (최초 한 번) ────────────────────────────────
+
+    /// <summary>
+    /// opc_history 테이블이 없으면 자동 생성합니다.
+    /// 원본 코드에는 없었지만, 프로젝트화 시 처음 실행 환경을 위해 추가합니다.
+    /// </summary>
+    public async Task<(bool Ok, string Msg)> EnsureTableAsync(DbWriteRequest req)
+    {
+        const string ddl = """
+            CREATE TABLE IF NOT EXISTS opc_history (
+                id          BIGSERIAL PRIMARY KEY,
+                tag_name    TEXT        NOT NULL,
+                tag_value   DOUBLE PRECISION NOT NULL,
+                status_code TEXT        NOT NULL,
+                created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
+            );
+            """;
+        try
+        {
+            await using var conn = new NpgsqlConnection(BuildConnString(req));
+            await conn.OpenAsync();
+            await using var cmd = new NpgsqlCommand(ddl, conn);
+            await cmd.ExecuteNonQueryAsync();
+            return (true, "테이블 확인/생성 완료");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "테이블 초기화 실패");
+            return (false, ex.Message);
+        }
+    }
+
+    // ── OPC 읽기 + DB 저장 루프 ──────────────────────────────────────
+
+    /// <summary>
+    /// OPC 노드를 req.Count 회 읽고 각 결과를 DB에 저장합니다.
+    /// 원본 for 루프 + SaveToDatabase 패턴을 그대로 유지합니다.
+    /// </summary>
+    public async Task<DbWriteResult> WriteLoopAsync(DbWriteRequest req)
+    {
+        if (!_sessionSvc.IsConnected)
+            return new DbWriteResult { Success = false, Message = "OPC 세션이 연결되어 있지 않습니다." };
+
+        var (tableOk, tableMsg) = await EnsureTableAsync(req);
+        if (!tableOk)
+            return new DbWriteResult { Success = false, Message = $"테이블 오류: {tableMsg}" };
+
+        var records = new List<DbWriteRecord>();
+        int saved   = 0;
+
+        for (int i = 1; i <= req.Count; i++)
+        {
+            // ── 1. OPC 태그 읽기 ────────────────────────────────────
+            double val     = 0;
+            string status  = "Unknown";
+            bool   dbSaved = false;
+
+            try
+            {
+                var (rawVal, sc) = await _sessionSvc.ReadValueAsync(req.TagNodeId);
+                val    = Convert.ToDouble(rawVal);
+                status = sc;
+                _logger.LogInformation("[{I}/{N}] {Tag} = {Val} ({Status})",
+                    i, req.Count, req.TagName, val, status);
+            }
+            catch (Exception ex)
+            {
+                status = $"ReadError: {ex.Message}";
+                _logger.LogWarning("[{I}/{N}] OPC 읽기 실패: {Msg}", i, req.Count, ex.Message);
+            }
+
+            // ── 2. DB 저장 (원본 SaveToDatabase 로직) ───────────────
+            try
+            {
+                await SaveToDatabaseAsync(req, val, status);
+                dbSaved = true;
+                saved++;
+                _logger.LogInformation("[{I}/{N}] DB 저장 완료.", i, req.Count);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "[{I}/{N}] DB 저장 실패", i, req.Count);
+            }
+
+            records.Add(new DbWriteRecord
+            {
+                Seq       = i,
+                Timestamp = DateTime.UtcNow,
+                TagName   = req.TagName,
+                Value     = val,
+                StatusCode = status,
+                DbSaved   = dbSaved
+            });
+
+            // ── 3. 인터벌 대기 (마지막 회차는 생략) ─────────────────
+            if (i < req.Count && req.IntervalMs > 0)
+                await Task.Delay(req.IntervalMs);
+        }
+
+        return new DbWriteResult
+        {
+            Success    = saved > 0,
+            Message    = $"{saved}/{req.Count}회 저장 완료",
+            SavedCount = saved,
+            Records    = records
+        };
+    }
+
+    // ── 원본 SaveToDatabase (INSERT 패턴 동일) ────────────────────────
+
+    private async Task SaveToDatabaseAsync(DbWriteRequest req, double val, string status)
+    {
+        await using var conn = new NpgsqlConnection(BuildConnString(req));
+        await conn.OpenAsync();
+
+        // 원본 동일 INSERT
+        const string sql =
+            "INSERT INTO opc_history (tag_name, tag_value, status_code) " +
+            "VALUES (@tag, @val, @status)";
+
+        await using var cmd = new NpgsqlCommand(sql, conn);
+        cmd.Parameters.AddWithValue("tag",    req.TagName);
+        cmd.Parameters.AddWithValue("val",    val);
+        cmd.Parameters.AddWithValue("status", status);
+
+        await cmd.ExecuteNonQueryAsync();
+    }
+
+    // ── DB 조회 ───────────────────────────────────────────────────────
+
+    public async Task<DbQueryResult> QueryRecentAsync(DbWriteRequest req, int limit = 100)
+    {
+        try
+        {
+            await using var conn = new NpgsqlConnection(BuildConnString(req));
+            await conn.OpenAsync();
+
+            string sql = $"""
+                SELECT id, tag_name, tag_value, status_code, created_at
+                FROM opc_history
+                ORDER BY id DESC
+                LIMIT {limit}
+                """;
+
+            await using var cmd  = new NpgsqlCommand(sql, conn);
+            await using var reader = await cmd.ExecuteReaderAsync();
+
+            var rows = new List<OpcHistoryRow>();
+            while (await reader.ReadAsync())
+            {
+                rows.Add(new OpcHistoryRow
+                {
+                    Id         = reader.GetInt64(0),
+                    TagName    = reader.GetString(1),
+                    TagValue   = reader.GetDouble(2),
+                    StatusCode = reader.GetString(3),
+                    CreatedAt  = reader.GetDateTime(4)
+                });
+            }
+
+            // 전체 카운트
+            await reader.CloseAsync();
+            await using var cntCmd = new NpgsqlCommand("SELECT COUNT(*) FROM opc_history", conn);
+            long total = (long)(await cntCmd.ExecuteScalarAsync() ?? 0L);
+
+            return new DbQueryResult
+            {
+                Success    = true,
+                TotalCount = (int)total,
+                Rows       = rows
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "DB 조회 실패");
+            return new DbQueryResult { Success = false, Message = ex.Message };
+        }
+    }
+
+    // ── 연결 테스트 ───────────────────────────────────────────────────
+
+    public async Task<(bool Ok, string Msg)> TestConnectionAsync(DbWriteRequest req)
+    {
+        try
+        {
+            await using var conn = new NpgsqlConnection(BuildConnString(req));
+            await conn.OpenAsync();
+            await using var cmd = new NpgsqlCommand("SELECT version()", conn);
+            var ver = await cmd.ExecuteScalarAsync();
+            return (true, $"연결 성공: {ver}");
+        }
+        catch (Exception ex)
+        {
+            return (false, ex.Message);
+        }
+    }
+}
--- a/opcUaManager/Services/OpcCrawlerService.cs
+++ b/opcUaManager/Services/OpcCrawlerService.cs
@@ -0,0 +1,161 @@
+using Opc.Ua;
+using Opc.Ua.Client;
+using OpcUaManager.Models;
+
+namespace OpcUaManager.Services;
+
+/// <summary>
+/// 원본 HoneywellCrawler 를 Service 로 분리.
+/// v1.5.374.70: BrowseNextAsync 가 튜플 반환이 아닌 BrowseNextResponse 객체 반환으로 변경됨.
+/// </summary>
+public class OpcCrawlerService
+{
+    private readonly ILogger<OpcCrawlerService> _logger;
+    private readonly OpcSessionService          _sessionSvc;
+
+    public OpcCrawlerService(ILogger<OpcCrawlerService> logger, OpcSessionService sessionSvc)
+    {
+        _logger     = logger;
+        _sessionSvc = sessionSvc;
+    }
+
+    public async Task<CrawlResult> CrawlAsync(CrawlRequest req)
+    {
+        if (!_sessionSvc.IsConnected)
+            return new CrawlResult { Success = false, Message = "세션이 연결되어 있지 않습니다." };
+
+        var session = _sessionSvc.GetRawSession();
+        if (session == null)
+            return new CrawlResult { Success = false, Message = "Raw 세션을 가져올 수 없습니다." };
+
+        var tags = new List<TagMaster>();
+
+        try
+        {
+            _logger.LogInformation("저인망 탐사 시작: {NodeId}", req.StartNodeId);
+            NodeId rootNode = NodeId.Parse(req.StartNodeId);
+            await BrowseRecursiveAsync(session, rootNode, 0, req.MaxDepth, tags);
+
+            string csvPath = await SaveToCsvAsync(tags);
+
+            _logger.LogInformation("탐사 완료: {Count}개 노드", tags.Count);
+            return new CrawlResult
+            {
+                Success    = true,
+                Message    = $"탐사 완료: {tags.Count}개 노드 발견",
+                TotalNodes = tags.Count,
+                Tags       = tags,
+                CsvPath    = csvPath
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Crawler 실행 오류");
+            return new CrawlResult { Success = false, Message = ex.Message, Tags = tags };
+        }
+    }
+
+    private async Task BrowseRecursiveAsync(
+        Session session, NodeId nodeId, int level, int maxDepth, List<TagMaster> tags)
+    {
+        try
+        {
+            // 원본 동일: BrowseAsync 객체 방식
+            BrowseDescription description = new()
+            {
+                NodeId          = nodeId,
+                BrowseDirection = BrowseDirection.Forward,
+                ReferenceTypeId = ReferenceTypeIds.HierarchicalReferences,
+                IncludeSubtypes = true,
+                NodeClassMask   = (uint)(NodeClass.Variable | NodeClass.Object),
+                ResultMask      = (uint)BrowseResultMask.All
+            };
+
+            BrowseResponse response = await session.BrowseAsync(
+                null, null, 0, [description], default);
+
+            if (response?.Results == null || response.Results.Count == 0) return;
+
+            foreach (var result in response.Results)
+            {
+                await ProcessReferencesAsync(session, result.References, level, maxDepth, tags);
+
+                byte[] cp = result.ContinuationPoint;
+                while (cp != null && cp.Length > 0)
+                {
+                    // FIX CS8130/CS1503: BrowseNextAsync 튜플 방식 → BrowseNextResponse 객체 방식
+                    // v1.5.374.70 에서 반환 타입이 Task<BrowseNextResponse> 로 변경됨
+                    BrowseNextResponse nextResponse = await session.BrowseNextAsync(
+                        null,
+                        false,
+                        new ByteStringCollection { cp },
+                        default);
+
+                    if (nextResponse?.Results != null && nextResponse.Results.Count > 0)
+                    {
+                        var nextResult = nextResponse.Results[0];
+                        await ProcessReferencesAsync(session, nextResult.References, level, maxDepth, tags);
+                        cp = nextResult.ContinuationPoint;
+                    }
+                    else
+                    {
+                        break;
+                    }
+                }
+            }
+        }
+        catch (Exception ex)
+        {
+            // 원본과 동일: 특정 노드 권한 에러 무시
+            _logger.LogDebug("노드 탐색 건너뜀 [{Level}] {NodeId}: {Msg}", level, nodeId, ex.Message);
+        }
+    }
+
+    private async Task ProcessReferencesAsync(
+        Session session,
+        ReferenceDescriptionCollection? references,
+        int level,
+        int maxDepth,
+        List<TagMaster> tags)
+    {
+        if (references == null || references.Count == 0) return;
+
+        foreach (var rd in references)
+        {
+            NodeId childId = ExpandedNodeId.ToNodeId(rd.NodeId, session.NamespaceUris);
+
+            tags.Add(new TagMaster
+            {
+                TagName    = rd.BrowseName.Name ?? "Unknown",
+                FullNodeId = childId.ToString(),
+                NodeClass  = rd.NodeClass.ToString(),
+                Level      = level
+            });
+
+            _logger.LogDebug("{Indent}[{Class}] {Name} ({Id})",
+                new string(' ', level * 2), rd.NodeClass, rd.BrowseName.Name, childId);
+
+            if (rd.NodeClass == NodeClass.Object && level < maxDepth)
+                await BrowseRecursiveAsync(session, childId, level + 1, maxDepth, tags);
+        }
+    }
+
+    private async Task<string> SaveToCsvAsync(List<TagMaster> tags)
+    {
+        string path = Path.GetFullPath("Honeywell_FullMap.csv");
+        try
+        {
+            await using var sw = new StreamWriter(path);
+            await sw.WriteLineAsync("Level,Class,Name,NodeId");
+            foreach (var tag in tags)
+                await sw.WriteLineAsync($"{tag.Level},{tag.NodeClass},{tag.TagName},{tag.FullNodeId}");
+
+            _logger.LogInformation("CSV 저장 완료: {Path}", path);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "CSV 저장 실패");
+        }
+        return path;
+    }
+}
--- a/opcUaManager/Services/OpcSessionService.cs
+++ b/opcUaManager/Services/OpcSessionService.cs
@@ -0,0 +1,180 @@
+using System.Text;
+using Opc.Ua;
+using Opc.Ua.Client;
+using OpcUaManager.Models;
+
+// Microsoft.AspNetCore.Http.ISession 과 Opc.Ua.Client.ISession 충돌 해소
+using OpcUaISession = Opc.Ua.Client.ISession;
+
+// Microsoft.AspNetCore.Http.StatusCodes 와 Opc.Ua.StatusCodes 충돌 해소
+using OpcStatusCodes = Opc.Ua.StatusCodes;
+
+namespace OpcUaManager.Services;
+
+/// <summary>
+/// OPC UA 세션을 싱글톤으로 관리합니다.
+/// v1.5.374.70 API 기준으로 수정되었습니다.
+/// </summary>
+public class OpcSessionService : IAsyncDisposable
+{
+    private readonly ILogger<OpcSessionService> _logger;
+    private readonly CertService _certService;
+
+    private OpcUaISession?             _session;
+    private ApplicationConfiguration?  _appConfig;
+    private readonly SemaphoreSlim      _lock = new(1, 1);
+
+    public bool   IsConnected => _session?.Connected == true;
+    public string SessionId   => _session?.SessionId?.ToString() ?? string.Empty;
+
+    public OpcSessionService(ILogger<OpcSessionService> logger, CertService certService)
+    {
+        _logger      = logger;
+        _certService = certService;
+    }
+
+    public async Task<ConnectResult> ConnectAsync(ConnectRequest req)
+    {
+        await _lock.WaitAsync();
+        try
+        {
+            if (IsConnected)
+                await InternalCloseAsync();
+
+            string endpointUrl = $"opc.tcp://{req.ServerIp}:{req.Port}";
+
+            // ── 1. 클라이언트 인증서 로드 ────────────────────────────
+            System.Security.Cryptography.X509Certificates.X509Certificate2? clientCert = null;
+            if (!string.IsNullOrWhiteSpace(req.PfxPath) && File.Exists(req.PfxPath))
+                clientCert = _certService.LoadPfx(req.PfxPath, req.PfxPassword);
+
+            string appUri = string.IsNullOrWhiteSpace(req.ApplicationUri)
+                ? $"urn:{System.Net.Dns.GetHostName()}:{req.ApplicationName}"
+                : req.ApplicationUri;
+
+            // ── 2. ApplicationConfiguration ───────────────────────────
+            _appConfig = new ApplicationConfiguration
+            {
+                ApplicationName = req.ApplicationName,
+                ApplicationType = ApplicationType.Client,
+                ApplicationUri  = appUri,
+                SecurityConfiguration = new SecurityConfiguration
+                {
+                    ApplicationCertificate = clientCert != null
+                        ? new CertificateIdentifier { Certificate = clientCert }
+                        : new CertificateIdentifier(),
+                    TrustedPeerCertificates = new CertificateTrustList
+                        { StoreType = "Directory", StorePath = Path.GetFullPath("pki/trusted") },
+                    TrustedIssuerCertificates = new CertificateTrustList
+                        { StoreType = "Directory", StorePath = Path.GetFullPath("pki/issuers") },
+                    RejectedCertificateStore = new CertificateTrustList
+                        { StoreType = "Directory", StorePath = Path.GetFullPath("pki/rejected") },
+                    AutoAcceptUntrustedCertificates = true,
+                    AddAppCertToTrustedStore        = true
+                },
+                TransportQuotas     = new TransportQuotas     { OperationTimeout     = 15000 },
+                ClientConfiguration = new ClientConfiguration { DefaultSessionTimeout = req.SessionTimeoutMs }
+            };
+
+            // FIX CS1061: ValidateAsync → Validate (v1.5.374.70에서 동기 메서드)
+            _appConfig.Validate(ApplicationType.Client);
+
+            // FIX CS0104: StatusCodes → OpcStatusCodes 별칭 사용
+            _appConfig.CertificateValidator.CertificateValidation += (_, e) =>
+            {
+                if (e.Error.StatusCode != OpcStatusCodes.Good) e.Accept = true;
+            };
+
+            // ── 3. Endpoint Discovery ─────────────────────────────────
+            _logger.LogInformation("Endpoint Discovery: {Url}", endpointUrl);
+            var endpointConfig = EndpointConfiguration.Create(_appConfig);
+
+            // FIX CS0117: DiscoveryClient.CreateAsync 없음 → 동기 Create 사용
+            EndpointDescriptionCollection endpoints;
+            using (var discovery = DiscoveryClient.Create(new Uri(endpointUrl), endpointConfig))
+            {
+                endpoints = discovery.GetEndpoints(null);
+            }
+
+            var selected = endpoints
+                .OrderByDescending(e => e.SecurityLevel)
+                .FirstOrDefault(e => e.SecurityPolicyUri.Contains(req.SecurityPolicy))
+                ?? endpoints.OrderByDescending(e => e.SecurityLevel).First();
+
+            var endpoint = new ConfiguredEndpoint(null, selected, endpointConfig);
+
+            // FIX CS1503: UserIdentity(user, byte[]) → UserIdentity(user, string)
+            // v1.5.374.70 에서 password 파라미터가 string 으로 변경됨
+            var identity = new UserIdentity(req.UserName, req.Password);
+
+            // ── 5. Session.Create ─────────────────────────────────────
+#pragma warning disable CS0618
+            _session = await Session.Create(
+                _appConfig,
+                endpoint,
+                false,
+                "OpcUaManagerSession",
+                (uint)req.SessionTimeoutMs,
+                identity,
+                null);
+#pragma warning restore CS0618
+
+            string secMode = selected.SecurityMode.ToString();
+            _logger.LogInformation("OPC UA 연결 완료 | SessionId={Id} | Security={Sec}",
+                _session.SessionId, secMode);
+
+            return new ConnectResult
+            {
+                Success      = true,
+                Message      = "연결 성공",
+                SessionId    = _session.SessionId.ToString(),
+                EndpointUrl  = endpointUrl,
+                SecurityMode = secMode
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "OPC UA 연결 실패");
+            return new ConnectResult { Success = false, Message = ex.Message };
+        }
+        finally
+        {
+            _lock.Release();
+        }
+    }
+
+    public async Task<bool> DisconnectAsync()
+    {
+        await _lock.WaitAsync();
+        try   { await InternalCloseAsync(); return true; }
+        finally { _lock.Release(); }
+    }
+
+    private async Task InternalCloseAsync()
+    {
+        if (_session != null)
+        {
+            try   { await _session.CloseAsync(); } catch { /* ignore */ }
+            _session.Dispose();
+            _session = null;
+        }
+    }
+
+    public async Task<(object? Value, string StatusCode)> ReadValueAsync(string nodeId)
+    {
+        if (!IsConnected || _session == null)
+            throw new InvalidOperationException("세션이 연결되어 있지 않습니다.");
+
+        var result = await _session.ReadValueAsync(nodeId);
+        return (result.Value, result.StatusCode.ToString());
+    }
+
+    public Session? GetRawSession() => _session as Session;
+
+    public async ValueTask DisposeAsync()
+    {
+        await InternalCloseAsync();
+        _lock.Dispose();
+        GC.SuppressFinalize(this);
+    }
+}
--- a/opcUaManager/bin/Debug/net8.0/Microsoft.OpenApi.dll
+++ b/opcUaManager/bin/Debug/net8.0/Microsoft.OpenApi.dll
--- a/opcUaManager/bin/Debug/net8.0/Newtonsoft.Json.dll
+++ b/opcUaManager/bin/Debug/net8.0/Newtonsoft.Json.dll
--- a/opcUaManager/bin/Debug/net8.0/Npgsql.dll
+++ b/opcUaManager/bin/Debug/net8.0/Npgsql.dll
--- a/opcUaManager/bin/Debug/net8.0/Opc.Ua.Client.dll
+++ b/opcUaManager/bin/Debug/net8.0/Opc.Ua.Client.dll
--- a/opcUaManager/bin/Debug/net8.0/Opc.Ua.Configuration.dll
+++ b/opcUaManager/bin/Debug/net8.0/Opc.Ua.Configuration.dll
--- a/opcUaManager/bin/Debug/net8.0/Opc.Ua.Core.dll
+++ b/opcUaManager/bin/Debug/net8.0/Opc.Ua.Core.dll
--- a/opcUaManager/bin/Debug/net8.0/Opc.Ua.Security.Certificates.dll
+++ b/opcUaManager/bin/Debug/net8.0/Opc.Ua.Security.Certificates.dll
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager.deps.json
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager.deps.json
@@ -0,0 +1,266 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v8.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v8.0": {
+      "OpcUaManager/1.0.0": {
+        "dependencies": {
+          "Npgsql": "8.0.3",
+          "OPCFoundation.NetStandard.Opc.Ua.Client": "1.5.374.70",
+          "Swashbuckle.AspNetCore": "6.6.2"
+        },
+        "runtime": {
+          "OpcUaManager.dll": {}
+        }
+      },
+      "Microsoft.Extensions.ApiDescription.Server/6.0.5": {},
+      "Microsoft.Extensions.DependencyInjection.Abstractions/8.0.0": {},
+      "Microsoft.Extensions.Logging.Abstractions/8.0.0": {
+        "dependencies": {
+          "Microsoft.Extensions.DependencyInjection.Abstractions": "8.0.0"
+        }
+      },
+      "Microsoft.OpenApi/1.6.14": {
+        "runtime": {
+          "lib/netstandard2.0/Microsoft.OpenApi.dll": {
+            "assemblyVersion": "1.6.14.0",
+            "fileVersion": "1.6.14.0"
+          }
+        }
+      },
+      "Newtonsoft.Json/13.0.3": {
+        "runtime": {
+          "lib/net6.0/Newtonsoft.Json.dll": {
+            "assemblyVersion": "13.0.0.0",
+            "fileVersion": "13.0.3.27908"
+          }
+        }
+      },
+      "Npgsql/8.0.3": {
+        "dependencies": {
+          "Microsoft.Extensions.Logging.Abstractions": "8.0.0"
+        },
+        "runtime": {
+          "lib/net8.0/Npgsql.dll": {
+            "assemblyVersion": "8.0.3.0",
+            "fileVersion": "8.0.3.0"
+          }
+        }
+      },
+      "OPCFoundation.NetStandard.Opc.Ua.Client/1.5.374.70": {
+        "dependencies": {
+          "OPCFoundation.NetStandard.Opc.Ua.Configuration": "1.5.374.70",
+          "OPCFoundation.NetStandard.Opc.Ua.Core": "1.5.374.70"
+        },
+        "runtime": {
+          "lib/net8.0/Opc.Ua.Client.dll": {
+            "assemblyVersion": "1.5.374.0",
+            "fileVersion": "1.5.374.70"
+          }
+        }
+      },
+      "OPCFoundation.NetStandard.Opc.Ua.Configuration/1.5.374.70": {
+        "dependencies": {
+          "OPCFoundation.NetStandard.Opc.Ua.Core": "1.5.374.70"
+        },
+        "runtime": {
+          "lib/net8.0/Opc.Ua.Configuration.dll": {
+            "assemblyVersion": "1.5.374.0",
+            "fileVersion": "1.5.374.70"
+          }
+        }
+      },
+      "OPCFoundation.NetStandard.Opc.Ua.Core/1.5.374.70": {
+        "dependencies": {
+          "Microsoft.Extensions.Logging.Abstractions": "8.0.0",
+          "Newtonsoft.Json": "13.0.3",
+          "OPCFoundation.NetStandard.Opc.Ua.Security.Certificates": "1.5.374.70"
+        },
+        "runtime": {
+          "lib/net8.0/Opc.Ua.Core.dll": {
+            "assemblyVersion": "1.5.374.0",
+            "fileVersion": "1.5.374.70"
+          }
+        }
+      },
+      "OPCFoundation.NetStandard.Opc.Ua.Security.Certificates/1.5.374.70": {
+        "dependencies": {
+          "System.Formats.Asn1": "8.0.0",
+          "System.Security.Cryptography.Cng": "5.0.0"
+        },
+        "runtime": {
+          "lib/net8.0/Opc.Ua.Security.Certificates.dll": {
+            "assemblyVersion": "1.5.374.0",
+            "fileVersion": "1.5.374.70"
+          }
+        }
+      },
+      "Swashbuckle.AspNetCore/6.6.2": {
+        "dependencies": {
+          "Microsoft.Extensions.ApiDescription.Server": "6.0.5",
+          "Swashbuckle.AspNetCore.Swagger": "6.6.2",
+          "Swashbuckle.AspNetCore.SwaggerGen": "6.6.2",
+          "Swashbuckle.AspNetCore.SwaggerUI": "6.6.2"
+        }
+      },
+      "Swashbuckle.AspNetCore.Swagger/6.6.2": {
+        "dependencies": {
+          "Microsoft.OpenApi": "1.6.14"
+        },
+        "runtime": {
+          "lib/net8.0/Swashbuckle.AspNetCore.Swagger.dll": {
+            "assemblyVersion": "6.6.2.0",
+            "fileVersion": "6.6.2.401"
+          }
+        }
+      },
+      "Swashbuckle.AspNetCore.SwaggerGen/6.6.2": {
+        "dependencies": {
+          "Swashbuckle.AspNetCore.Swagger": "6.6.2"
+        },
+        "runtime": {
+          "lib/net8.0/Swashbuckle.AspNetCore.SwaggerGen.dll": {
+            "assemblyVersion": "6.6.2.0",
+            "fileVersion": "6.6.2.401"
+          }
+        }
+      },
+      "Swashbuckle.AspNetCore.SwaggerUI/6.6.2": {
+        "runtime": {
+          "lib/net8.0/Swashbuckle.AspNetCore.SwaggerUI.dll": {
+            "assemblyVersion": "6.6.2.0",
+            "fileVersion": "6.6.2.401"
+          }
+        }
+      },
+      "System.Formats.Asn1/8.0.0": {},
+      "System.Security.Cryptography.Cng/5.0.0": {
+        "dependencies": {
+          "System.Formats.Asn1": "8.0.0"
+        }
+      }
+    }
+  },
+  "libraries": {
+    "OpcUaManager/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    },
+    "Microsoft.Extensions.ApiDescription.Server/6.0.5": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-Ckb5EDBUNJdFWyajfXzUIMRkhf52fHZOQuuZg/oiu8y7zDCVwD0iHhew6MnThjHmevanpxL3f5ci2TtHQEN6bw==",
+      "path": "microsoft.extensions.apidescription.server/6.0.5",
+      "hashPath": "microsoft.extensions.apidescription.server.6.0.5.nupkg.sha512"
+    },
+    "Microsoft.Extensions.DependencyInjection.Abstractions/8.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-cjWrLkJXK0rs4zofsK4bSdg+jhDLTaxrkXu4gS6Y7MAlCvRyNNgwY/lJi5RDlQOnSZweHqoyvgvbdvQsRIW+hg==",
+      "path": "microsoft.extensions.dependencyinjection.abstractions/8.0.0",
+      "hashPath": "microsoft.extensions.dependencyinjection.abstractions.8.0.0.nupkg.sha512"
+    },
+    "Microsoft.Extensions.Logging.Abstractions/8.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-arDBqTgFCyS0EvRV7O3MZturChstm50OJ0y9bDJvAcmEPJm0FFpFyjU/JLYyStNGGey081DvnQYlncNX5SJJGA==",
+      "path": "microsoft.extensions.logging.abstractions/8.0.0",
+      "hashPath": "microsoft.extensions.logging.abstractions.8.0.0.nupkg.sha512"
+    },
+    "Microsoft.OpenApi/1.6.14": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-tTaBT8qjk3xINfESyOPE2rIellPvB7qpVqiWiyA/lACVvz+xOGiXhFUfohcx82NLbi5avzLW0lx+s6oAqQijfw==",
+      "path": "microsoft.openapi/1.6.14",
+      "hashPath": "microsoft.openapi.1.6.14.nupkg.sha512"
+    },
+    "Newtonsoft.Json/13.0.3": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-HrC5BXdl00IP9zeV+0Z848QWPAoCr9P3bDEZguI+gkLcBKAOxix/tLEAAHC+UvDNPv4a2d18lOReHMOagPa+zQ==",
+      "path": "newtonsoft.json/13.0.3",
+      "hashPath": "newtonsoft.json.13.0.3.nupkg.sha512"
+    },
+    "Npgsql/8.0.3": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-6WEmzsQJCZAlUG1pThKg/RmeF6V+I0DmBBBE/8YzpRtEzhyZzKcK7ulMANDm5CkxrALBEC8H+5plxHWtIL7xnA==",
+      "path": "npgsql/8.0.3",
+      "hashPath": "npgsql.8.0.3.nupkg.sha512"
+    },
+    "OPCFoundation.NetStandard.Opc.Ua.Client/1.5.374.70": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-TiguVbV6kANLKqV8KUPzf89re/ng53ebq3xaLUJJTfg0NAYxZTmUGYGAULR8c/C9aVi6xM5MGAuq+ggf1jEl+A==",
+      "path": "opcfoundation.netstandard.opc.ua.client/1.5.374.70",
+      "hashPath": "opcfoundation.netstandard.opc.ua.client.1.5.374.70.nupkg.sha512"
+    },
+    "OPCFoundation.NetStandard.Opc.Ua.Configuration/1.5.374.70": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-Qai1Ieo+laEO6ARW/YNuAcS1W34KJYqcbg4gUEYMBvHUNvl1ACgp8lYbXkj34vJ9BlqHlT9nYM0W6ioynUbaAw==",
+      "path": "opcfoundation.netstandard.opc.ua.configuration/1.5.374.70",
+      "hashPath": "opcfoundation.netstandard.opc.ua.configuration.1.5.374.70.nupkg.sha512"
+    },
+    "OPCFoundation.NetStandard.Opc.Ua.Core/1.5.374.70": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-zOrqHMkHm5Pf9oFbRgscr5smU0Jx54l3ARGJcBQugbb2r+O53PPR8C/y1a+8FtI4Lx/feDB2qgjwZ8xqzSfuXQ==",
+      "path": "opcfoundation.netstandard.opc.ua.core/1.5.374.70",
+      "hashPath": "opcfoundation.netstandard.opc.ua.core.1.5.374.70.nupkg.sha512"
+    },
+    "OPCFoundation.NetStandard.Opc.Ua.Security.Certificates/1.5.374.70": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-hBCW2MAOX+BJmzVOekOCBLiSYNGz5hDJM/JEvGyaCqJ4dTv3D5/Fgi4y9NgquuY2pOd9bd9mOWjGgdW9ZQdJOg==",
+      "path": "opcfoundation.netstandard.opc.ua.security.certificates/1.5.374.70",
+      "hashPath": "opcfoundation.netstandard.opc.ua.security.certificates.1.5.374.70.nupkg.sha512"
+    },
+    "Swashbuckle.AspNetCore/6.6.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-+NB4UYVYN6AhDSjW0IJAd1AGD8V33gemFNLPaxKTtPkHB+HaKAKf9MGAEUPivEWvqeQfcKIw8lJaHq6LHljRuw==",
+      "path": "swashbuckle.aspnetcore/6.6.2",
+      "hashPath": "swashbuckle.aspnetcore.6.6.2.nupkg.sha512"
+    },
+    "Swashbuckle.AspNetCore.Swagger/6.6.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-ovgPTSYX83UrQUWiS5vzDcJ8TEX1MAxBgDFMK45rC24MorHEPQlZAHlaXj/yth4Zf6xcktpUgTEBvffRQVwDKA==",
+      "path": "swashbuckle.aspnetcore.swagger/6.6.2",
+      "hashPath": "swashbuckle.aspnetcore.swagger.6.6.2.nupkg.sha512"
+    },
+    "Swashbuckle.AspNetCore.SwaggerGen/6.6.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-zv4ikn4AT1VYuOsDCpktLq4QDq08e7Utzbir86M5/ZkRaLXbCPF11E1/vTmOiDzRTl0zTZINQU2qLKwTcHgfrA==",
+      "path": "swashbuckle.aspnetcore.swaggergen/6.6.2",
+      "hashPath": "swashbuckle.aspnetcore.swaggergen.6.6.2.nupkg.sha512"
+    },
+    "Swashbuckle.AspNetCore.SwaggerUI/6.6.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-mBBb+/8Hm2Q3Wygag+hu2jj69tZW5psuv0vMRXY07Wy+Rrj40vRP8ZTbKBhs91r45/HXT4aY4z0iSBYx1h6JvA==",
+      "path": "swashbuckle.aspnetcore.swaggerui/6.6.2",
+      "hashPath": "swashbuckle.aspnetcore.swaggerui.6.6.2.nupkg.sha512"
+    },
+    "System.Formats.Asn1/8.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-AJukBuLoe3QeAF+mfaRKQb2dgyrvt340iMBHYv+VdBzCUM06IxGlvl0o/uPOS7lHnXPN6u8fFRHSHudx5aTi8w==",
+      "path": "system.formats.asn1/8.0.0",
+      "hashPath": "system.formats.asn1.8.0.0.nupkg.sha512"
+    },
+    "System.Security.Cryptography.Cng/5.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-jIMXsKn94T9JY7PvPq/tMfqa6GAaHpElRDpmG+SuL+D3+sTw2M8VhnibKnN8Tq+4JqbPJ/f+BwtLeDMEnzAvRg==",
+      "path": "system.security.cryptography.cng/5.0.0",
+      "hashPath": "system.security.cryptography.cng.5.0.0.nupkg.sha512"
+    }
+  }
+}
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager.dll
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager.dll
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager.pdb
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager.pdb
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager.runtimeconfig.json
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager.runtimeconfig.json
@@ -0,0 +1,19 @@
+{
+  "runtimeOptions": {
+    "tfm": "net8.0",
+    "frameworks": [
+      {
+        "name": "Microsoft.NETCore.App",
+        "version": "8.0.0"
+      },
+      {
+        "name": "Microsoft.AspNetCore.App",
+        "version": "8.0.0"
+      }
+    ],
+    "configProperties": {
+      "System.GC.Server": true,
+      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
+    }
+  }
+}
--- a/opcUaManager/bin/Debug/net8.0/OpcUaManager.staticwebassets.runtime.json
+++ b/opcUaManager/bin/Debug/net8.0/OpcUaManager.staticwebassets.runtime.json
@@ -0,0 +1 @@
+{"ContentRoots":["/home/pacer/projects/opcUaManager/wwwroot/"],"Root":{"Children":{"index.html":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"index.html"},"Patterns":null}},"Asset":null,"Patterns":[{"ContentRootIndex":0,"Pattern":"**","Depth":0}]}}
--- a/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.Swagger.dll
+++ b/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.Swagger.dll
--- a/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerGen.dll
+++ b/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerGen.dll
--- a/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerUI.dll
+++ b/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerUI.dll
--- a/opcUaManager/init_db.sql
+++ b/opcUaManager/init_db.sql
@@ -0,0 +1,23 @@
+-- ============================================================
+-- OPC UA Manager — PostgreSQL 초기화 스크립트
+-- 실행: psql -U postgres -d opcdb -f init_db.sql
+-- ============================================================
+
+-- 데이터베이스 생성 (psql 에서 직접 실행 시)
+-- CREATE DATABASE opcdb;
+
+-- opc_history 테이블
+CREATE TABLE IF NOT EXISTS opc_history (
+    id          BIGSERIAL        PRIMARY KEY,
+    tag_name    TEXT             NOT NULL,
+    tag_value   DOUBLE PRECISION NOT NULL,
+    status_code TEXT             NOT NULL,
+    created_at  TIMESTAMPTZ      NOT NULL DEFAULT NOW()
+);
+
+-- 인덱스 (태그명 + 시간 기준 조회 최적화)
+CREATE INDEX IF NOT EXISTS idx_opc_history_tag_name   ON opc_history (tag_name);
+CREATE INDEX IF NOT EXISTS idx_opc_history_created_at ON opc_history (created_at DESC);
+
+-- 확인
+SELECT 'opc_history 테이블 준비 완료' AS result;
--- a/opcUaManager/obj/Debug/net8.0/.NETCoreApp,Version=v8.0.AssemblyAttributes.cs
+++ b/opcUaManager/obj/Debug/net8.0/.NETCoreApp,Version=v8.0.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v8.0", FrameworkDisplayName = ".NET 8.0")]
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfo.cs
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfo.cs
@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("OpcUaManager")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+4ea351946aa5ffb76c8c693b768cb7f460f0cb79")]
+[assembly: System.Reflection.AssemblyProductAttribute("OpcUaManager")]
+[assembly: System.Reflection.AssemblyTitleAttribute("OpcUaManager")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Generated by the MSBuild WriteCodeFragment class.
+
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfoInputs.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfoInputs.cache
@@ -0,0 +1 @@
+4d3435e515b1133eaf4a3bc25612c8110ded80ed47219a5a2561401d2d703539
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.GeneratedMSBuildEditorConfig.editorconfig
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.GeneratedMSBuildEditorConfig.editorconfig
@@ -0,0 +1,19 @@
+is_global = true
+build_property.TargetFramework = net8.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = true
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = OpcUaManager
+build_property.RootNamespace = OpcUaManager
+build_property.ProjectDir = /home/pacer/projects/opcUaManager/
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.RazorLangVersion = 8.0
+build_property.SupportLocalizedComponentNames = 
+build_property.GenerateRazorMetadataSourceChecksumAttributes = 
+build_property.MSBuildProjectDirectory = /home/pacer/projects/opcUaManager
+build_property._RazorSourceGeneratorDebug = 
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.GlobalUsings.g.cs
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.GlobalUsings.g.cs
@@ -0,0 +1,17 @@
+// <auto-generated/>
+global using global::Microsoft.AspNetCore.Builder;
+global using global::Microsoft.AspNetCore.Hosting;
+global using global::Microsoft.AspNetCore.Http;
+global using global::Microsoft.AspNetCore.Routing;
+global using global::Microsoft.Extensions.Configuration;
+global using global::Microsoft.Extensions.DependencyInjection;
+global using global::Microsoft.Extensions.Hosting;
+global using global::Microsoft.Extensions.Logging;
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Net.Http.Json;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cache
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cs
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cs
@@ -0,0 +1,16 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: Microsoft.AspNetCore.Mvc.ApplicationParts.ApplicationPartAttribute("Swashbuckle.AspNetCore.SwaggerGen")]
+
+// Generated by the MSBuild WriteCodeFragment class.
+
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.assets.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.assets.cache
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.AssemblyReference.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.AssemblyReference.cache
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CopyComplete
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CopyComplete
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CoreCompileInputs.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+a38ac13601df264e3305daaab2701d061db79abfe74d745f8cb1549021254d3b
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.FileListAbsolute.txt
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.FileListAbsolute.txt
@@ -0,0 +1,37 @@
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.AssemblyReference.cache
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.GeneratedMSBuildEditorConfig.editorconfig
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfoInputs.cache
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.AssemblyInfo.cs
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CoreCompileInputs.cache
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cs
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.MvcApplicationPartsAssemblyInfo.cache
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager.staticwebassets.runtime.json
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager.deps.json
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager.runtimeconfig.json
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/OpcUaManager.pdb
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Microsoft.OpenApi.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Newtonsoft.Json.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Npgsql.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Opc.Ua.Client.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Opc.Ua.Configuration.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Opc.Ua.Core.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Opc.Ua.Security.Certificates.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.Swagger.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerGen.dll
+/home/pacer/projects/opcUaManager/bin/Debug/net8.0/Swashbuckle.AspNetCore.SwaggerUI.dll
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets.build.json
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets.development.json
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.OpcUaManager.Microsoft.AspNetCore.StaticWebAssets.props
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.build.OpcUaManager.props
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildMultiTargeting.OpcUaManager.props
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildTransitive.OpcUaManager.props
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/staticwebassets.pack.json
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/scopedcss/bundle/OpcUaManager.styles.css
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.csproj.CopyComplete
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.dll
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/refint/OpcUaManager.dll
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.pdb
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/OpcUaManager.genruntimeconfig.cache
+/home/pacer/projects/opcUaManager/obj/Debug/net8.0/ref/OpcUaManager.dll
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.dll
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.dll
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.genruntimeconfig.cache
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.genruntimeconfig.cache
@@ -0,0 +1 @@
+c2d6000231adf119ed097595a4eae7c659e8a4df56c6f9e58afe708f9abd8740
--- a/opcUaManager/obj/Debug/net8.0/OpcUaManager.pdb
+++ b/opcUaManager/obj/Debug/net8.0/OpcUaManager.pdb
--- a/opcUaManager/obj/Debug/net8.0/apphost
+++ b/opcUaManager/obj/Debug/net8.0/apphost
--- a/opcUaManager/obj/Debug/net8.0/ref/OpcUaManager.dll
+++ b/opcUaManager/obj/Debug/net8.0/ref/OpcUaManager.dll
--- a/opcUaManager/obj/Debug/net8.0/refint/OpcUaManager.dll
+++ b/opcUaManager/obj/Debug/net8.0/refint/OpcUaManager.dll
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets.build.json
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets.build.json
@@ -0,0 +1,39 @@
+{
+  "Version": 1,
+  "Hash": "s4uFx+nwU80AcCRA99ifmwH5T5X85dmfqujG/UwPRww=",
+  "Source": "OpcUaManager",
+  "BasePath": "_content/OpcUaManager",
+  "Mode": "Default",
+  "ManifestType": "Build",
+  "ReferencedProjectsConfiguration": [],
+  "DiscoveryPatterns": [
+    {
+      "Name": "OpcUaManager/wwwroot",
+      "Source": "OpcUaManager",
+      "ContentRoot": "/home/pacer/projects/opcUaManager/wwwroot/",
+      "BasePath": "_content/OpcUaManager",
+      "Pattern": "**"
+    }
+  ],
+  "Assets": [
+    {
+      "Identity": "/home/pacer/projects/opcUaManager/wwwroot/index.html",
+      "SourceId": "OpcUaManager",
+      "SourceType": "Discovered",
+      "ContentRoot": "/home/pacer/projects/opcUaManager/wwwroot/",
+      "BasePath": "_content/OpcUaManager",
+      "RelativePath": "index.html",
+      "AssetKind": "All",
+      "AssetMode": "All",
+      "AssetRole": "Primary",
+      "AssetMergeBehavior": "PreferTarget",
+      "AssetMergeSource": "",
+      "RelatedAsset": "",
+      "AssetTraitName": "",
+      "AssetTraitValue": "",
+      "CopyToOutputDirectory": "Never",
+      "CopyToPublishDirectory": "PreserveNewest",
+      "OriginalItemSpec": "wwwroot/index.html"
+    }
+  ]
+}
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets.development.json
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets.development.json
@@ -0,0 +1 @@
+{"ContentRoots":["/home/pacer/projects/opcUaManager/wwwroot/"],"Root":{"Children":{"index.html":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"index.html"},"Patterns":null}},"Asset":null,"Patterns":[{"ContentRootIndex":0,"Pattern":"**","Depth":0}]}}
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets.pack.json
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets.pack.json
@@ -0,0 +1,25 @@
+{
+  "Files": [
+    {
+      "Id": "/home/pacer/projects/opcUaManager/wwwroot/index.html",
+      "PackagePath": "staticwebassets/index.html"
+    },
+    {
+      "Id": "obj/Debug/net8.0/staticwebassets/msbuild.OpcUaManager.Microsoft.AspNetCore.StaticWebAssets.props",
+      "PackagePath": "build\\Microsoft.AspNetCore.StaticWebAssets.props"
+    },
+    {
+      "Id": "obj/Debug/net8.0/staticwebassets/msbuild.build.OpcUaManager.props",
+      "PackagePath": "build\\OpcUaManager.props"
+    },
+    {
+      "Id": "obj/Debug/net8.0/staticwebassets/msbuild.buildMultiTargeting.OpcUaManager.props",
+      "PackagePath": "buildMultiTargeting\\OpcUaManager.props"
+    },
+    {
+      "Id": "obj/Debug/net8.0/staticwebassets/msbuild.buildTransitive.OpcUaManager.props",
+      "PackagePath": "buildTransitive\\OpcUaManager.props"
+    }
+  ],
+  "ElementsToRemove": []
+}
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.OpcUaManager.Microsoft.AspNetCore.StaticWebAssets.props
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.OpcUaManager.Microsoft.AspNetCore.StaticWebAssets.props
@@ -0,0 +1,20 @@
+<Project>
+  <ItemGroup>
+    <StaticWebAsset Include="$([System.IO.Path]::GetFullPath($(MSBuildThisFileDirectory)..\staticwebassets\index.html))">
+      <SourceType>Package</SourceType>
+      <SourceId>OpcUaManager</SourceId>
+      <ContentRoot>$(MSBuildThisFileDirectory)..\staticwebassets\</ContentRoot>
+      <BasePath>_content/OpcUaManager</BasePath>
+      <RelativePath>index.html</RelativePath>
+      <AssetKind>All</AssetKind>
+      <AssetMode>All</AssetMode>
+      <AssetRole>Primary</AssetRole>
+      <RelatedAsset></RelatedAsset>
+      <AssetTraitName></AssetTraitName>
+      <AssetTraitValue></AssetTraitValue>
+      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+      <OriginalItemSpec>$([System.IO.Path]::GetFullPath($(MSBuildThisFileDirectory)..\staticwebassets\index.html))</OriginalItemSpec>
+    </StaticWebAsset>
+  </ItemGroup>
+</Project>
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.build.OpcUaManager.props
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.build.OpcUaManager.props
@@ -0,0 +1,3 @@
+<Project>
+  <Import Project="Microsoft.AspNetCore.StaticWebAssets.props" />
+</Project>
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildMultiTargeting.OpcUaManager.props
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildMultiTargeting.OpcUaManager.props
@@ -0,0 +1,3 @@
+<Project>
+  <Import Project="../build/OpcUaManager.props" />
+</Project>
--- a/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildTransitive.OpcUaManager.props
+++ b/opcUaManager/obj/Debug/net8.0/staticwebassets/msbuild.buildTransitive.OpcUaManager.props
@@ -0,0 +1,3 @@
+<Project>
+  <Import Project="../buildMultiTargeting/OpcUaManager.props" />
+</Project>
--- a/opcUaManager/obj/OpcUaManager.csproj.nuget.dgspec.json
+++ b/opcUaManager/obj/OpcUaManager.csproj.nuget.dgspec.json
@@ -0,0 +1,78 @@
+{
+  "format": 1,
+  "restore": {
+    "/home/pacer/projects/opcUaManager/OpcUaManager.csproj": {}
+  },
+  "projects": {
+    "/home/pacer/projects/opcUaManager/OpcUaManager.csproj": {
+      "version": "1.0.0",
+      "restore": {
+        "projectUniqueName": "/home/pacer/projects/opcUaManager/OpcUaManager.csproj",
+        "projectName": "OpcUaManager",
+        "projectPath": "/home/pacer/projects/opcUaManager/OpcUaManager.csproj",
+        "packagesPath": "/home/pacer/.nuget/packages/",
+        "outputPath": "/home/pacer/projects/opcUaManager/obj/",
+        "projectStyle": "PackageReference",
+        "configFilePaths": [
+          "/home/pacer/.nuget/NuGet/NuGet.Config"
+        ],
+        "originalTargetFrameworks": [
+          "net8.0"
+        ],
+        "sources": {
+          "https://api.nuget.org/v3/index.json": {}
+        },
+        "frameworks": {
+          "net8.0": {
+            "targetAlias": "net8.0",
+            "projectReferences": {}
+          }
+        },
+        "warningProperties": {
+          "warnAsError": [
+            "NU1605"
+          ]
+        }
+      },
+      "frameworks": {
+        "net8.0": {
+          "targetAlias": "net8.0",
+          "dependencies": {
+            "Npgsql": {
+              "target": "Package",
+              "version": "[8.0.3, )"
+            },
+            "OPCFoundation.NetStandard.Opc.Ua.Client": {
+              "target": "Package",
+              "version": "[1.5.374.70, )"
+            },
+            "Swashbuckle.AspNetCore": {
+              "target": "Package",
+              "version": "[6.6.2, )"
+            }
+          },
+          "imports": [
+            "net461",
+            "net462",
+            "net47",
+            "net471",
+            "net472",
+            "net48",
+            "net481"
+          ],
+          "assetTargetFallback": true,
+          "warn": true,
+          "frameworkReferences": {
+            "Microsoft.AspNetCore.App": {
+              "privateAssets": "none"
+            },
+            "Microsoft.NETCore.App": {
+              "privateAssets": "all"
+            }
+          },
+          "runtimeIdentifierGraphPath": "/usr/lib/dotnet/sdk/8.0.124/PortableRuntimeIdentifierGraph.json"
+        }
+      }
+    }
+  }
+}
--- a/opcUaManager/obj/OpcUaManager.csproj.nuget.g.props
+++ b/opcUaManager/obj/OpcUaManager.csproj.nuget.g.props
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
+    <RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
+    <ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
+    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">/home/pacer/.nuget/packages/</NuGetPackageRoot>
+    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">/home/pacer/.nuget/packages/</NuGetPackageFolders>
+    <NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
+    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.8.1</NuGetToolVersion>
+  </PropertyGroup>
+  <ItemGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <SourceRoot Include="/home/pacer/.nuget/packages/" />
+  </ItemGroup>
+  <ImportGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <Import Project="$(NuGetPackageRoot)microsoft.extensions.apidescription.server/6.0.5/build/Microsoft.Extensions.ApiDescription.Server.props" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.apidescription.server/6.0.5/build/Microsoft.Extensions.ApiDescription.Server.props')" />
+    <Import Project="$(NuGetPackageRoot)swashbuckle.aspnetcore/6.6.2/build/Swashbuckle.AspNetCore.props" Condition="Exists('$(NuGetPackageRoot)swashbuckle.aspnetcore/6.6.2/build/Swashbuckle.AspNetCore.props')" />
+  </ImportGroup>
+  <PropertyGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <PkgMicrosoft_Extensions_ApiDescription_Server Condition=" '$(PkgMicrosoft_Extensions_ApiDescription_Server)' == '' ">/home/pacer/.nuget/packages/microsoft.extensions.apidescription.server/6.0.5</PkgMicrosoft_Extensions_ApiDescription_Server>
+  </PropertyGroup>
+</Project>
--- a/opcUaManager/obj/OpcUaManager.csproj.nuget.g.targets
+++ b/opcUaManager/obj/OpcUaManager.csproj.nuget.g.targets
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <Import Project="$(NuGetPackageRoot)microsoft.extensions.apidescription.server/6.0.5/build/Microsoft.Extensions.ApiDescription.Server.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.apidescription.server/6.0.5/build/Microsoft.Extensions.ApiDescription.Server.targets')" />
+    <Import Project="$(NuGetPackageRoot)microsoft.extensions.logging.abstractions/8.0.0/buildTransitive/net6.0/Microsoft.Extensions.Logging.Abstractions.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.logging.abstractions/8.0.0/buildTransitive/net6.0/Microsoft.Extensions.Logging.Abstractions.targets')" />
+  </ImportGroup>
+</Project>
--- a/opcUaManager/obj/project.assets.json
+++ b/opcUaManager/obj/project.assets.json
--- a/opcUaManager/obj/project.nuget.cache
+++ b/opcUaManager/obj/project.nuget.cache
@@ -0,0 +1,25 @@
+{
+  "version": 2,
+  "dgSpecHash": "Ga9UHoPQpUkv8jxodDA8vo11T3mprY66/yGczOjljIyTq1sa8UveU6sxFTXdPSSJTx3ClCJ8exYfTtrnZyfYww==",
+  "success": true,
+  "projectFilePath": "/home/pacer/projects/opcUaManager/OpcUaManager.csproj",
+  "expectedPackageFiles": [
+    "/home/pacer/.nuget/packages/microsoft.extensions.apidescription.server/6.0.5/microsoft.extensions.apidescription.server.6.0.5.nupkg.sha512",
+    "/home/pacer/.nuget/packages/microsoft.extensions.dependencyinjection.abstractions/8.0.0/microsoft.extensions.dependencyinjection.abstractions.8.0.0.nupkg.sha512",
+    "/home/pacer/.nuget/packages/microsoft.extensions.logging.abstractions/8.0.0/microsoft.extensions.logging.abstractions.8.0.0.nupkg.sha512",
+    "/home/pacer/.nuget/packages/microsoft.openapi/1.6.14/microsoft.openapi.1.6.14.nupkg.sha512",
+    "/home/pacer/.nuget/packages/newtonsoft.json/13.0.3/newtonsoft.json.13.0.3.nupkg.sha512",
+    "/home/pacer/.nuget/packages/npgsql/8.0.3/npgsql.8.0.3.nupkg.sha512",
+    "/home/pacer/.nuget/packages/opcfoundation.netstandard.opc.ua.client/1.5.374.70/opcfoundation.netstandard.opc.ua.client.1.5.374.70.nupkg.sha512",
+    "/home/pacer/.nuget/packages/opcfoundation.netstandard.opc.ua.configuration/1.5.374.70/opcfoundation.netstandard.opc.ua.configuration.1.5.374.70.nupkg.sha512",
+    "/home/pacer/.nuget/packages/opcfoundation.netstandard.opc.ua.core/1.5.374.70/opcfoundation.netstandard.opc.ua.core.1.5.374.70.nupkg.sha512",
+    "/home/pacer/.nuget/packages/opcfoundation.netstandard.opc.ua.security.certificates/1.5.374.70/opcfoundation.netstandard.opc.ua.security.certificates.1.5.374.70.nupkg.sha512",
+    "/home/pacer/.nuget/packages/swashbuckle.aspnetcore/6.6.2/swashbuckle.aspnetcore.6.6.2.nupkg.sha512",
+    "/home/pacer/.nuget/packages/swashbuckle.aspnetcore.swagger/6.6.2/swashbuckle.aspnetcore.swagger.6.6.2.nupkg.sha512",
+    "/home/pacer/.nuget/packages/swashbuckle.aspnetcore.swaggergen/6.6.2/swashbuckle.aspnetcore.swaggergen.6.6.2.nupkg.sha512",
+    "/home/pacer/.nuget/packages/swashbuckle.aspnetcore.swaggerui/6.6.2/swashbuckle.aspnetcore.swaggerui.6.6.2.nupkg.sha512",
+    "/home/pacer/.nuget/packages/system.formats.asn1/8.0.0/system.formats.asn1.8.0.0.nupkg.sha512",
+    "/home/pacer/.nuget/packages/system.security.cryptography.cng/5.0.0/system.security.cryptography.cng.5.0.0.nupkg.sha512"
+  ],
+  "logs": []
+}
--- a/opcUaManager/pki/own/certs/opcUaManager.pfx
+++ b/opcUaManager/pki/own/certs/opcUaManager.pfx
--- a/opcUaManager/pki/trusted/certs/opcUaManager[2A38B6774CC2DB7518F397C33961EAE34BE36F8B].der
+++ b/opcUaManager/pki/trusted/certs/opcUaManager[2A38B6774CC2DB7518F397C33961EAE34BE36F8B].der
--- a/opcUaManager/wwwroot/index.html
+++ b/opcUaManager/wwwroot/index.html
@@ -0,0 +1,828 @@
+<!DOCTYPE html>
+<html lang="ko">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>OPC UA Control Panel</title>
+<link href="https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@400;500;600;700&display=swap" rel="stylesheet">
+<style>
+  :root {
+    --bg:      #0a0c10;
+    --surface: #111520;
+    --border:  #1e2535;
+    --border2: #2a3550;
+    --accent:  #00d4ff;
+    --accent2: #00ff9d;
+    --warn:    #ffb800;
+    --danger:  #ff3c5a;
+    --text:    #c8d8f0;
+    --muted:   #4a5a78;
+    --mono:    'Share Tech Mono', monospace;
+    --sans:    'Rajdhani', sans-serif;
+  }
+  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+  body {
+    background: var(--bg); color: var(--text);
+    font-family: var(--sans); font-size: 15px;
+    min-height: 100vh; overflow-x: hidden;
+  }
+  body::before {
+    content: ''; position: fixed; inset: 0;
+    background-image:
+      linear-gradient(rgba(0,212,255,.03) 1px, transparent 1px),
+      linear-gradient(90deg, rgba(0,212,255,.03) 1px, transparent 1px);
+    background-size: 40px 40px; pointer-events: none; z-index: 0;
+  }
+  header {
+    position: relative; z-index: 10;
+    display: flex; align-items: center; justify-content: space-between;
+    padding: 14px 32px;
+    background: rgba(17,21,32,.95);
+    border-bottom: 1px solid var(--border2);
+    backdrop-filter: blur(12px);
+  }
+  .logo { display: flex; align-items: center; gap: 14px; }
+  .logo-mark {
+    width: 36px; height: 36px; border: 2px solid var(--accent);
+    transform: rotate(45deg); position: relative;
+    animation: spin-pulse 4s ease-in-out infinite;
+  }
+  .logo-mark::after {
+    content: ''; position: absolute; inset: 5px;
+    background: var(--accent); opacity: .6;
+  }
+  @keyframes spin-pulse {
+    0%,100% { box-shadow: 0 0 8px var(--accent); }
+    50% { box-shadow: 0 0 24px var(--accent), 0 0 48px rgba(0,212,255,.3); }
+  }
+  .logo-text { font-size: 22px; font-weight: 700; letter-spacing: 4px; color: #fff; }
+  .logo-sub  { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 2px; }
+  .header-right { display: flex; align-items: center; gap: 20px; }
+  .api-url-wrap { display: flex; align-items: center; gap: 8px; }
+  .api-url-wrap label { font-family: var(--mono); font-size: 11px; color: var(--muted); }
+  .api-url-wrap input {
+    background: #080b12; border: 1px solid var(--border2); border-radius: 3px;
+    padding: 5px 10px; color: var(--text); font-family: var(--mono); font-size: 12px;
+    outline: none; width: 220px;
+  }
+  .header-status { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--muted); }
+  .status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); transition: all .4s; }
+  .status-dot.online { background: var(--accent2); box-shadow: 0 0 10px var(--accent2); animation: blink 2s infinite; }
+  .status-dot.error  { background: var(--danger);  box-shadow: 0 0 10px var(--danger); }
+  @keyframes blink { 0%,100%{opacity:1} 50%{opacity:.4} }
+  main {
+    position: relative; z-index: 1;
+    max-width: 1200px; margin: 0 auto; padding: 32px 24px;
+    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
+  }
+  .panel {
+    background: var(--surface); border: 1px solid var(--border);
+    border-radius: 4px; overflow: hidden; position: relative; transition: border-color .3s;
+  }
+  .panel:hover { border-color: var(--border2); }
+  .panel::before {
+    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
+    background: linear-gradient(90deg, transparent, var(--accent), transparent);
+    opacity: 0; transition: opacity .3s;
+  }
+  .panel:hover::before { opacity: 1; }
+  .panel-header {
+    display: flex; align-items: center; justify-content: space-between;
+    padding: 14px 20px; border-bottom: 1px solid var(--border);
+    background: rgba(255,255,255,.02);
+  }
+  .panel-title {
+    font-size: 13px; font-weight: 600; letter-spacing: 3px;
+    color: var(--accent); text-transform: uppercase;
+    display: flex; align-items: center; gap: 10px;
+  }
+  .panel-num { font-family: var(--mono); font-size: 10px; color: var(--muted); padding: 2px 8px; border: 1px solid var(--border2); border-radius: 2px; }
+  .panel-body { padding: 20px; }
+  .field { margin-bottom: 16px; }
+  .field label { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 1.5px; text-transform: uppercase; }
+  .field input {
+    width: 100%; background: #080b12; border: 1px solid var(--border2); border-radius: 3px;
+    padding: 10px 14px; color: var(--text); font-family: var(--mono); font-size: 13px;
+    outline: none; transition: border-color .2s, box-shadow .2s;
+  }
+  .field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,255,.1), inset 0 0 20px rgba(0,212,255,.03); }
+  .field input::placeholder { color: var(--muted); }
+  .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
+  .btn {
+    position: relative; overflow: hidden;
+    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
+    padding: 11px 24px; border: 1px solid; border-radius: 3px;
+    font-family: var(--sans); font-size: 13px; font-weight: 600;
+    letter-spacing: 2px; text-transform: uppercase; cursor: pointer; transition: all .2s; outline: none;
+  }
+  .btn::before { content: ''; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .2s; }
+  .btn:hover::before { opacity: .08; }
+  .btn:active { transform: scale(.98); }
+  .btn-primary { background: transparent; color: var(--accent); border-color: var(--accent); box-shadow: inset 0 0 20px rgba(0,212,255,.05); }
+  .btn-primary:hover { background: rgba(0,212,255,.1); box-shadow: 0 0 20px rgba(0,212,255,.25), inset 0 0 20px rgba(0,212,255,.05); }
+  .btn-success { background: transparent; color: var(--accent2); border-color: var(--accent2); }
+  .btn-success:hover { background: rgba(0,255,157,.08); box-shadow: 0 0 20px rgba(0,255,157,.25); }
+  .btn-warn { background: transparent; color: var(--warn); border-color: var(--warn); }
+  .btn-warn:hover { background: rgba(255,184,0,.08); box-shadow: 0 0 20px rgba(255,184,0,.2); }
+  .btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
+  .btn-danger:hover { background: rgba(255,60,90,.08); box-shadow: 0 0 20px rgba(255,60,90,.2); }
+  .btn:disabled { opacity: .35; cursor: not-allowed; pointer-events: none; }
+  .btn-full { width: 100%; }
+  .spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
+  @keyframes spin { to { transform: rotate(360deg); } }
+  .console { grid-column: 1/-1; background: #050710; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
+  .console-header { padding: 10px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
+  .console-title { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 2px; }
+  .console-body { height: 240px; overflow-y: auto; padding: 14px 20px; font-family: var(--mono); font-size: 12px; line-height: 1.8; }
+  .console-body::-webkit-scrollbar { width: 4px; }
+  .console-body::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }
+  .log-line { display: flex; gap: 12px; }
+  .log-time { color: var(--muted); flex-shrink: 0; }
+  .log-msg.info  { color: var(--text); }
+  .log-msg.ok    { color: var(--accent2); }
+  .log-msg.warn  { color: var(--warn); }
+  .log-msg.error { color: var(--danger); }
+  .log-msg.accent{ color: var(--accent); }
+  .db-table { grid-column: 1/-1; }
+  .data-grid { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
+  .data-grid th { padding: 10px 16px; text-align: left; color: var(--muted); font-size: 10px; letter-spacing: 2px; text-transform: uppercase; border-bottom: 1px solid var(--border); background: rgba(255,255,255,.02); }
+  .data-grid td { padding: 10px 16px; border-bottom: 1px solid rgba(255,255,255,.04); color: var(--text); }
+  .data-grid tr:last-child td { border-bottom: none; }
+  .data-grid tr:hover td { background: rgba(0,212,255,.04); }
+  .data-grid .val { color: var(--accent2); }
+  .data-grid .status-ok { color: var(--accent2); }
+  .data-grid .status-err { color: var(--danger); }
+  .row-new { animation: row-flash .6s ease; }
+  @keyframes row-flash { 0%{background:rgba(0,255,157,.15)} 100%{background:transparent} }
+  .metrics { grid-column: 1/-1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
+  .metric { background: var(--surface); padding: 16px 20px; display: flex; flex-direction: column; gap: 4px; }
+  .metric-label { font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; }
+  .metric-val { font-family: var(--mono); font-size: 22px; font-weight: 700; color: var(--text); transition: color .3s; }
+  .metric-val.accent  { color: var(--accent); }
+  .metric-val.success { color: var(--accent2); }
+  .metric-val.warn    { color: var(--warn); }
+  .progress-wrap { margin-top: 14px; }
+  .progress-label { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--muted); margin-bottom: 6px; }
+  .progress-bar { height: 4px; background: var(--border2); border-radius: 2px; overflow: hidden; }
+  .progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 2px; transition: width .4s ease; box-shadow: 0 0 8px var(--accent); }
+  .badge { display: inline-block; padding: 2px 10px; border-radius: 2px; font-family: var(--mono); font-size: 10px; letter-spacing: 1px; }
+  .badge-blue  { background: rgba(0,212,255,.1); color: var(--accent); border: 1px solid rgba(0,212,255,.3); }
+  .badge-green { background: rgba(0,255,157,.1); color: var(--accent2); border: 1px solid rgba(0,255,157,.3); }
+  .cert-result {
+    margin-top: 14px; padding: 12px 14px;
+    background: rgba(0,255,157,.04); border: 1px solid rgba(0,255,157,.2); border-radius: 3px;
+    font-family: var(--mono); font-size: 11px; line-height: 2; display: none;
+  }
+  .cert-result .cr-label { color: var(--muted); }
+  .cert-result .cr-val   { color: var(--accent2); }
+  .divider { grid-column: 1/-1; display: flex; align-items: center; gap: 16px; padding: 4px 0; }
+  .divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
+  .divider span { font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: 3px; white-space: nowrap; }
+  @media (max-width: 768px) { main { grid-template-columns: 1fr; } .metrics { grid-template-columns: repeat(2, 1fr); } }
+</style>
+</head>
+<body>
+
+<header>
+  <div class="logo">
+    <div class="logo-mark"></div>
+    <div>
+      <div class="logo-text">OPC·UA</div>
+      <div class="logo-sub">INDUSTRIAL CONTROL PANEL</div>
+    </div>
+  </div>
+  <div class="header-right">
+    <div class="api-url-wrap">
+      <label>API</label>
+      <input type="text" id="apiBase" value="http://localhost:5000">
+    </div>
+    <div class="header-status">
+      <div class="status-dot" id="connDot"></div>
+      <span id="connLabel">DISCONNECTED</span>
+    </div>
+  </div>
+</header>
+
+<main>
+  <!-- METRICS -->
+  <div class="metrics">
+    <div class="metric"><span class="metric-label">OPC SESSION</span><span class="metric-val" id="m-conn">OFFLINE</span></div>
+    <div class="metric"><span class="metric-label">NODES FOUND</span><span class="metric-val accent" id="m-nodes">—</span></div>
+    <div class="metric"><span class="metric-label">DB RECORDS</span><span class="metric-val success" id="m-records">0</span></div>
+    <div class="metric"><span class="metric-label">LAST VALUE</span><span class="metric-val warn" id="m-lastval">—</span></div>
+  </div>
+
+  <!-- ① CERT -->
+  <div class="panel">
+    <div class="panel-header">
+      <div class="panel-title"><span>🔐</span> Certificate Generator <span class="panel-num">01</span></div>
+      <span class="badge badge-blue">PKI / X.509</span>
+    </div>
+    <div class="panel-body">
+      <div class="field-row">
+        <div class="field">
+          <label>내 컴퓨터 호스트명</label>
+          <input type="text" id="clientHost" value="dbsvr" oninput="updateUri()">
+        </div>
+        <div class="field">
+          <label>Application Name</label>
+          <input type="text" id="appName" value="OpcTestClient" oninput="updateUri()">
+        </div>
+      </div>
+      <div class="field">
+        <label>Application URI (자동 생성)</label>
+        <input type="text" id="appUri" readonly>
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>OPC 서버 호스트명</label>
+          <input type="text" id="serverHost" placeholder="opc-server-01">
+        </div>
+        <div class="field">
+          <label>OPC 서버 IP</label>
+          <input type="text" id="serverIp" value="192.168.0.20">
+        </div>
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>PFX 비밀번호</label>
+          <input type="password" id="pfxPassword" placeholder="(없으면 공백)">
+        </div>
+        <div class="field">
+          <label>유효 기간 (일)</label>
+          <input type="number" id="certDays" value="365" min="1">
+        </div>
+      </div>
+      <!-- 결과 박스 -->
+      <div class="cert-result" id="certResult">
+        <div><span class="cr-label">Thumbprint : </span><span class="cr-val" id="crThumb">—</span></div>
+        <div><span class="cr-label">Serial No  : </span><span class="cr-val" id="crSerial">—</span></div>
+        <div><span class="cr-label">Not Before : </span><span class="cr-val" id="crFrom">—</span></div>
+        <div><span class="cr-label">Not After  : </span><span class="cr-val" id="crTo">—</span></div>
+        <div><span class="cr-label">PFX Path   : </span><span class="cr-val" id="crPath">—</span></div>
+      </div>
+      <div style="display:flex;gap:10px;margin-top:12px">
+        <button class="btn btn-primary btn-full" id="btnCert" onclick="generateCert()">
+          <span>⚙</span> 인증서 생성
+        </button>
+        <button class="btn btn-success" id="btnCertDownload" style="padding:11px 16px;display:none" title="PFX 다운로드" onclick="downloadPfx()">↓</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- ② SESSION -->
+  <div class="panel">
+    <div class="panel-header">
+      <div class="panel-title"><span>🔗</span> OPC-UA Session <span class="panel-num">02</span></div>
+      <span class="badge badge-blue">opc.tcp://</span>
+    </div>
+    <div class="panel-body">
+      <div class="field-row">
+        <div class="field">
+          <label>서버 IP</label>
+          <input type="text" id="endpointIp" value="192.168.0.20">
+        </div>
+        <div class="field">
+          <label>포트</label>
+          <input type="number" id="endpointPort" value="4840">
+        </div>
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>사용자명</label>
+          <input type="text" id="opcUser" value="mngr">
+        </div>
+        <div class="field">
+          <label>비밀번호</label>
+          <input type="password" id="opcPass" value="mngr">
+        </div>
+      </div>
+      <div class="field">
+        <label>Security Policy</label>
+        <input type="text" id="secPolicy" value="Basic256Sha256">
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>PFX 파일명 (pki/own/certs/)</label>
+          <input type="text" id="pfxFile" value="OpcTestClient.pfx">
+        </div>
+        <div class="field">
+          <label>PFX 비밀번호</label>
+          <input type="password" id="sessPfxPass">
+        </div>
+      </div>
+      <div style="display:flex;gap:10px;margin-top:8px">
+        <button class="btn btn-success btn-full" id="btnConnect" onclick="connectSession()">
+          <span>▶</span> 연결
+        </button>
+        <button class="btn btn-danger" id="btnDisconnect" onclick="disconnectSession()" disabled style="padding:11px 18px">✕</button>
+      </div>
+    </div>
+  </div>
+
+  <div class="divider"><span>NODE CRAWLER &amp; DATABASE</span></div>
+
+  <!-- ③ CRAWLER -->
+  <div class="panel">
+    <div class="panel-header">
+      <div class="panel-title"><span>🌐</span> Node Crawler <span class="panel-num">03</span></div>
+      <span class="badge badge-green" id="crawlBadge">IDLE</span>
+    </div>
+    <div class="panel-body">
+      <div class="field">
+        <label>시작 Node ID</label>
+        <input type="text" id="startNode" value="ns=1;s=$assetmodel">
+      </div>
+      <div class="field">
+        <label>최대 탐색 깊이</label>
+        <input type="number" id="crawlDepth" value="5" min="1" max="20">
+      </div>
+      <div class="progress-wrap" id="crawlProgressWrap" style="display:none">
+        <div class="progress-label"><span id="crawlStatus">탐색 중...</span><span id="crawlCount">0 nodes</span></div>
+        <div class="progress-bar"><div class="progress-fill" id="crawlFill"></div></div>
+      </div>
+      <div style="display:flex;gap:10px;margin-top:8px">
+        <button class="btn btn-success btn-full" id="btnCrawl" onclick="startCrawler()" disabled>
+          <span>⛏</span> Crawler 시작
+        </button>
+        <button class="btn btn-warn" id="btnExportCsv" onclick="downloadCsv()" disabled style="padding:11px 18px" title="CSV 다운로드">↓</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- ④ DATABASE -->
+  <div class="panel">
+    <div class="panel-header">
+      <div class="panel-title"><span>🗄</span> Database Writer <span class="panel-num">04</span></div>
+      <span class="badge badge-blue">PostgreSQL</span>
+    </div>
+    <div class="panel-body">
+      <div class="field">
+        <label>Tag Node ID</label>
+        <input type="text" id="tagNodeId" value="ns=1;s=shinam:p-6102.hzset.fieldvalue">
+      </div>
+      <div class="field">
+        <label>Tag Name (DB 저장명)</label>
+        <input type="text" id="tagName" value="p-6102">
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>DB Host</label>
+          <input type="text" id="dbHost" value="localhost">
+        </div>
+        <div class="field">
+          <label>Database</label>
+          <input type="text" id="dbName" value="opcdb">
+        </div>
+      </div>
+      <div class="field-row">
+        <div class="field">
+          <label>DB User</label>
+          <input type="text" id="dbUser" value="postgres">
+        </div>
+        <div class="field">
+          <label>DB Password</label>
+          <input type="password" id="dbPass" value="postgres">
+        </div>
+      </div>
+      <div class="progress-wrap" id="dbProgressWrap" style="display:none">
+        <div class="progress-label"><span>저장 중...</span><span id="dbPct">0/5</span></div>
+        <div class="progress-bar"><div class="progress-fill" id="dbFill"></div></div>
+      </div>
+      <div style="display:flex;gap:10px;margin-top:8px">
+        <button class="btn btn-warn" id="btnDbTest" onclick="testDb()" style="padding:11px 16px">TEST</button>
+        <button class="btn btn-warn btn-full" id="btnDb" onclick="startDbWrite()" disabled>
+          <span>💾</span> DB 5회 저장
+        </button>
+        <button class="btn btn-primary" id="btnDbQuery" onclick="queryDb()" disabled style="padding:11px 16px">조회</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- ⑤ CONSOLE -->
+  <div class="console">
+    <div class="console-header">
+      <span class="console-title">// SYSTEM LOG</span>
+      <button class="btn btn-danger" onclick="clearLog()" style="padding:4px 14px;font-size:11px">CLEAR</button>
+    </div>
+    <div class="console-body" id="logBody">
+      <div class="log-line"><span class="log-time">--:--:--</span><span class="log-msg accent">OPC UA Control Panel initialized.</span></div>
+    </div>
+  </div>
+
+  <!-- ⑥ DB TABLE -->
+  <div class="panel db-table">
+    <div class="panel-header">
+      <div class="panel-title"><span>📊</span> Recent DB Records <span class="panel-num">05</span></div>
+      <button class="btn btn-primary" onclick="clearTable()" style="padding:5px 14px;font-size:11px">CLEAR</button>
+    </div>
+    <div class="panel-body" style="padding:0">
+      <table class="data-grid">
+        <thead><tr><th>#</th><th>TIMESTAMP</th><th>TAG NAME</th><th>VALUE</th><th>STATUS</th><th>DB</th></tr></thead>
+        <tbody id="dbTableBody">
+          <tr><td colspan="6" style="text-align:center;color:var(--muted);padding:24px">No records yet.</td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</main>
+
+<script>
+/* ═══════════════════════════════
+   CONFIG
+═══════════════════════════════ */
+const api = () => document.getElementById('apiBase').value.replace(/\/$/, '');
+
+let dbRowCount = 0;
+let lastPfxPath = '';
+let lastPfxName = '';
+
+/* ═══════════════════════════════
+   LOG
+═══════════════════════════════ */
+function log(msg, type = 'info') {
+  const body = document.getElementById('logBody');
+  const now  = new Date();
+  const ts   = [now.getHours(), now.getMinutes(), now.getSeconds()]
+               .map(n => String(n).padStart(2,'0')).join(':');
+  const line = document.createElement('div');
+  line.className = 'log-line';
+  line.innerHTML = `<span class="log-time">${ts}</span><span class="log-msg ${type}">${escHtml(String(msg))}</span>`;
+  body.appendChild(line);
+  body.scrollTop = body.scrollHeight;
+}
+function clearLog() { document.getElementById('logBody').innerHTML = ''; log('Log cleared.','warn'); }
+const escHtml = s => s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
+
+/* ═══════════════════════════════
+   URI 자동 생성
+═══════════════════════════════ */
+function updateUri() {
+  const h = document.getElementById('clientHost').value || '{hostname}';
+  const a = document.getElementById('appName').value   || '{appname}';
+  document.getElementById('appUri').value = `urn:${h}:${a}`;
+}
+updateUri();
+
+/* ═══════════════════════════════
+   API 공통 Fetch
+═══════════════════════════════ */
+async function apiFetch(path, method = 'GET', body = null) {
+  const opts = {
+    method,
+    headers: { 'Content-Type': 'application/json' }
+  };
+  if (body) opts.body = JSON.stringify(body);
+  const res = await fetch(api() + path, opts);
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.detail || data.error || `HTTP ${res.status}`);
+  return data;
+}
+
+/* ═══════════════════════════════
+   ① CERTIFICATE
+═══════════════════════════════ */
+async function generateCert() {
+  const req = {
+    clientHostName: document.getElementById('clientHost').value.trim(),
+    applicationName: document.getElementById('appName').value.trim(),
+    serverHostName: document.getElementById('serverHost').value.trim(),
+    serverIp: document.getElementById('serverIp').value.trim(),
+    pfxPassword: document.getElementById('pfxPassword').value,
+    validDays: parseInt(document.getElementById('certDays').value) || 365
+  };
+
+  if (!req.clientHostName || !req.applicationName) {
+    log('❌ 호스트명과 Application Name을 입력하세요.', 'error'); return;
+  }
+
+  setBtnLoading('btnCert', true, '생성 중...');
+  log(`⚙ 인증서 생성 요청: ${req.applicationName} @ ${req.clientHostName}`, 'accent');
+
+  try {
+    const res = await apiFetch('/api/cert/generate', 'POST', req);
+    lastPfxPath = res.pfxPath;
+    lastPfxName = `${req.applicationName}.pfx`;
+
+    // 결과 표시
+    document.getElementById('crThumb').textContent  = res.thumbprint;
+    document.getElementById('crSerial').textContent = res.serialNumber;
+    document.getElementById('crFrom').textContent   = res.notBefore;
+    document.getElementById('crTo').textContent     = res.notAfter;
+    document.getElementById('crPath').textContent   = res.pfxPath;
+    document.getElementById('certResult').style.display = 'block';
+    document.getElementById('btnCertDownload').style.display = '';
+
+    log(`✅ 인증서 생성 완료!`, 'ok');
+    log(`   URI:        ${res.applicationUri}`, 'ok');
+    log(`   Thumbprint: ${res.thumbprint}`, 'ok');
+    log(`   유효기간:   ${res.notBefore} ~ ${res.notAfter}`, 'info');
+    log(`   PFX 경로:   ${res.pfxPath}`, 'info');
+
+    // 세션 패널에 pfxFile 자동 채우기
+    document.getElementById('pfxFile').value = lastPfxName;
+    document.getElementById('sessPfxPass').value = req.pfxPassword;
+    document.getElementById('appUri').value = res.applicationUri;
+  } catch (e) {
+    log(`❌ 인증서 생성 실패: ${e.message}`, 'error');
+  } finally {
+    setBtnLoading('btnCert', false, '⚙ 인증서 생성');
+  }
+}
+
+async function downloadPfx() {
+  if (!lastPfxName) return;
+  try {
+    const res = await fetch(`${api()}/api/cert/download/${lastPfxName}`);
+    if (!res.ok) throw new Error('다운로드 실패');
+    const blob = await res.blob();
+    const url  = URL.createObjectURL(blob);
+    const a    = document.createElement('a');
+    a.href = url; a.download = lastPfxName; a.click();
+    URL.revokeObjectURL(url);
+    log(`💾 PFX 다운로드: ${lastPfxName}`, 'ok');
+  } catch (e) {
+    log(`❌ ${e.message}`, 'error');
+  }
+}
+
+/* ═══════════════════════════════
+   ② SESSION
+═══════════════════════════════ */
+async function connectSession() {
+  const pfxFile = document.getElementById('pfxFile').value.trim();
+  const req = {
+    serverIp:       document.getElementById('endpointIp').value.trim(),
+    port:           parseInt(document.getElementById('endpointPort').value),
+    userName:       document.getElementById('opcUser').value.trim(),
+    password:       document.getElementById('opcPass').value,
+    securityPolicy: document.getElementById('secPolicy').value.trim(),
+    sessionTimeoutMs: 60000,
+    pfxPath:        pfxFile ? `pki/own/certs/${pfxFile}` : '',
+    pfxPassword:    document.getElementById('sessPfxPass').value,
+    applicationName: document.getElementById('appName').value.trim(),
+    applicationUri:  document.getElementById('appUri').value.trim()
+  };
+
+  if (!req.serverIp) { log('❌ 서버 IP를 입력하세요.', 'error'); return; }
+
+  setBtnLoading('btnConnect', true, '연결 중...');
+  log(`🔗 연결 시도: opc.tcp://${req.serverIp}:${req.port}`, 'accent');
+  log(`   Security: ${req.securityPolicy} | User: ${req.userName}`, 'info');
+
+  try {
+    const res = await apiFetch('/api/session/connect', 'POST', req);
+    updateConnectionState(true);
+    log(`✅ 연결 성공! SessionId: ${res.sessionId}`, 'ok');
+    log(`   Security Mode: ${res.securityMode}`, 'ok');
+  } catch (e) {
+    log(`❌ 연결 실패: ${e.message}`, 'error');
+    setBtnLoading('btnConnect', false, '▶ 연결');
+  }
+}
+
+async function disconnectSession() {
+  log('🔌 세션 종료 중...', 'warn');
+  try {
+    await apiFetch('/api/session/disconnect', 'POST');
+    updateConnectionState(false);
+    log('✅ 세션 종료 완료.', 'ok');
+  } catch (e) {
+    log(`❌ ${e.message}`, 'error');
+  }
+}
+
+function updateConnectionState(connected) {
+  const dot   = document.getElementById('connDot');
+  const label = document.getElementById('connLabel');
+  document.getElementById('m-conn').textContent  = connected ? 'ONLINE' : 'OFFLINE';
+  document.getElementById('m-conn').className    = 'metric-val ' + (connected ? 'success' : '');
+  dot.className = 'status-dot ' + (connected ? 'online' : 'error');
+  label.textContent = connected ? 'CONNECTED' : 'DISCONNECTED';
+
+  document.getElementById('btnDisconnect').disabled = !connected;
+  document.getElementById('btnCrawl').disabled      = !connected;
+  document.getElementById('btnDb').disabled         = !connected;
+  document.getElementById('btnDbQuery').disabled    = !connected;
+
+  if (connected) {
+    document.getElementById('btnConnect').innerHTML = '<span>▶</span> 연결됨';
+  } else {
+    document.getElementById('btnConnect').disabled = false;
+    document.getElementById('btnConnect').innerHTML = '<span>▶</span> 연결';
+  }
+}
+
+// 세션 상태 폴링 (5초마다)
+setInterval(async () => {
+  try {
+    const st = await apiFetch('/api/session/status');
+    updateConnectionState(st.isConnected);
+  } catch { /* API 서버 꺼진 경우 무시 */ }
+}, 5000);
+
+/* ═══════════════════════════════
+   ③ CRAWLER
+═══════════════════════════════ */
+async function startCrawler() {
+  const req = {
+    startNodeId: document.getElementById('startNode').value.trim(),
+    maxDepth:    parseInt(document.getElementById('crawlDepth').value)
+  };
+
+  const badge = document.getElementById('crawlBadge');
+  const wrap  = document.getElementById('crawlProgressWrap');
+  const fill  = document.getElementById('crawlFill');
+  const cnt   = document.getElementById('crawlCount');
+  const stat  = document.getElementById('crawlStatus');
+
+  setBtnLoading('btnCrawl', true, '탐색 중...');
+  badge.textContent = 'RUNNING';
+  badge.style.cssText = 'background:rgba(255,184,0,.1);color:var(--warn);border-color:rgba(255,184,0,.3)';
+  wrap.style.display = 'block';
+  stat.textContent = '서버 응답 대기 중...';
+
+  // 진행률 애니메이션 (실제 완료 후 100%)
+  let fakeProgress = 0;
+  const ticker = setInterval(() => {
+    if (fakeProgress < 90) { fakeProgress += 2; fill.style.width = fakeProgress + '%'; }
+  }, 400);
+
+  log(`🌐 Crawler 시작: ${req.startNodeId} (depth=${req.maxDepth})`, 'accent');
+
+  try {
+    const res = await apiFetch('/api/crawler/start', 'POST', req);
+    clearInterval(ticker);
+    fill.style.width = '100%';
+    cnt.textContent  = `${res.totalNodes} nodes`;
+
+    badge.textContent = 'DONE';
+    badge.style.cssText = 'background:rgba(0,255,157,.1);color:var(--accent2);border-color:rgba(0,255,157,.3)';
+
+    document.getElementById('m-nodes').textContent = res.totalNodes;
+    document.getElementById('btnExportCsv').disabled = false;
+
+    log(`✅ 탐사 완료: ${res.totalNodes}개 노드`, 'ok');
+    log(`   CSV: ${res.csvPath}`, 'info');
+
+    // 상위 20개 로그
+    res.tags?.slice(0, 20).forEach(t =>
+      log(`   [Lv${t.level}][${t.nodeClass}] ${t.tagName} — ${t.fullNodeId}`, 'info'));
+    if (res.tags?.length > 20) log(`   ... 그 외 ${res.tags.length - 20}개`, 'muted');
+  } catch (e) {
+    clearInterval(ticker);
+    log(`❌ Crawler 실패: ${e.message}`, 'error');
+    badge.textContent = 'ERROR';
+    badge.style.cssText = 'background:rgba(255,60,90,.1);color:var(--danger);border-color:rgba(255,60,90,.3)';
+  } finally {
+    setBtnLoading('btnCrawl', false, '⛏ Crawler 시작');
+  }
+}
+
+function downloadCsv() {
+  const a = document.createElement('a');
+  a.href = `${api()}/api/crawler/csv`;
+  a.download = 'Honeywell_FullMap.csv';
+  a.click();
+  log('💾 CSV 다운로드 시작.', 'ok');
+}
+
+/* ═══════════════════════════════
+   ④ DATABASE
+═══════════════════════════════ */
+function dbReq() {
+  return {
+    tagNodeId:  document.getElementById('tagNodeId').value.trim(),
+    tagName:    document.getElementById('tagName').value.trim(),
+    count:      5,
+    intervalMs: 2000,
+    dbHost:     document.getElementById('dbHost').value.trim(),
+    dbName:     document.getElementById('dbName').value.trim(),
+    dbUser:     document.getElementById('dbUser').value.trim(),
+    dbPassword: document.getElementById('dbPass').value
+  };
+}
+
+async function testDb() {
+  log('🔌 DB 연결 테스트...', 'accent');
+  try {
+    const res = await apiFetch('/api/database/test', 'POST', dbReq());
+    log(`✅ ${res.message}`, 'ok');
+  } catch (e) {
+    log(`❌ DB 연결 실패: ${e.message}`, 'error');
+  }
+}
+
+async function startDbWrite() {
+  const req = dbReq();
+  if (!req.tagNodeId || !req.tagName) {
+    log('❌ Tag Node ID와 Tag Name을 입력하세요.', 'error'); return;
+  }
+
+  const wrap = document.getElementById('dbProgressWrap');
+  const fill = document.getElementById('dbFill');
+  const pct  = document.getElementById('dbPct');
+
+  setBtnLoading('btnDb', true, '저장 중...');
+  wrap.style.display = 'block';
+  fill.style.width = '0%';
+  pct.textContent = '0/5';
+
+  log(`\n💾 DB 저장 시작 (${req.count}회) → ${req.dbUser}@${req.dbHost}/${req.dbName}`, 'accent');
+  log(`   Tag: ${req.tagName} | Node: ${req.tagNodeId}`, 'info');
+
+  let fakeP = 0;
+  const ticker = setInterval(() => {
+    if (fakeP < 90) { fakeP += 5; fill.style.width = fakeP + '%'; }
+  }, 500);
+
+  try {
+    const res = await apiFetch('/api/database/write', 'POST', req);
+    clearInterval(ticker);
+    fill.style.width = '100%';
+    pct.textContent = `${res.savedCount}/${req.count}`;
+
+    const tbody = document.getElementById('dbTableBody');
+    if (dbRowCount === 0) tbody.innerHTML = '';
+
+    res.records?.forEach(r => {
+      dbRowCount++;
+      const tr  = document.createElement('tr');
+      tr.className = 'row-new';
+      const ts  = new Date(r.timestamp).toLocaleTimeString('ko-KR', { hour12: false });
+      const sc  = r.statusCode === 'Good' ? 'status-ok' : 'status-err';
+      tr.innerHTML = `
+        <td>${dbRowCount}</td><td>${ts}</td><td>${r.tagName}</td>
+        <td class="val">${r.value.toFixed(4)}</td>
+        <td class="${sc}">${r.statusCode}</td>
+        <td>${r.dbSaved ? '✅' : '❌'}</td>`;
+      tbody.insertBefore(tr, tbody.firstChild);
+
+      document.getElementById('m-records').textContent = dbRowCount;
+      document.getElementById('m-lastval').textContent = r.value.toFixed(4);
+      log(`   [${r.seq}/${req.count}] ${r.tagName} = ${r.value.toFixed(4)} (${r.statusCode}) → DB: ${r.dbSaved ? '✅' : '❌'}`, r.dbSaved ? 'ok' : 'warn');
+    });
+
+    log(`✅ ${res.message}`, 'ok');
+  } catch (e) {
+    clearInterval(ticker);
+    log(`❌ DB 저장 실패: ${e.message}`, 'error');
+  } finally {
+    setBtnLoading('btnDb', false, '💾 DB 5회 저장');
+  }
+}
+
+async function queryDb() {
+  log('📊 DB 조회 중...', 'accent');
+  try {
+    const res = await apiFetch('/api/database/query?limit=50', 'POST', dbReq());
+    const tbody = document.getElementById('dbTableBody');
+    tbody.innerHTML = '';
+    dbRowCount = 0;
+
+    if (!res.rows?.length) {
+      tbody.innerHTML = '<tr><td colspan="6" style="text-align:center;color:var(--muted);padding:24px">No records found.</td></tr>';
+      return;
+    }
+
+    res.rows.forEach(r => {
+      dbRowCount++;
+      const tr = document.createElement('tr');
+      const ts = new Date(r.createdAt).toLocaleTimeString('ko-KR', {hour12:false});
+      const sc = r.statusCode === 'Good' ? 'status-ok' : 'status-err';
+      tr.innerHTML = `
+        <td>${r.id}</td><td>${ts}</td><td>${r.tagName}</td>
+        <td class="val">${r.tagValue.toFixed(4)}</td>
+        <td class="${sc}">${r.statusCode}</td><td>✅</td>`;
+      tbody.appendChild(tr);
+    });
+
+    document.getElementById('m-records').textContent = res.totalCount;
+    log(`✅ 조회 완료: 총 ${res.totalCount}개 중 ${res.rows.length}개 표시`, 'ok');
+  } catch (e) {
+    log(`❌ 조회 실패: ${e.message}`, 'error');
+  }
+}
+
+function clearTable() {
+  document.getElementById('dbTableBody').innerHTML =
+    '<tr><td colspan="6" style="text-align:center;color:var(--muted);padding:24px">No records yet.</td></tr>';
+  dbRowCount = 0;
+  document.getElementById('m-records').textContent = '0';
+  document.getElementById('m-lastval').textContent = '—';
+  log('🗑 테이블 초기화.', 'warn');
+}
+
+/* ═══════════════════════════════
+   UTILITY
+═══════════════════════════════ */
+function setBtnLoading(id, loading, label) {
+  const btn = document.getElementById(id);
+  btn.disabled = loading;
+  btn.innerHTML = loading
+    ? `<span class="spinner"></span> ${label}`
+    : label;
+}
+</script>
+</body>
+</html>
				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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