| Experion HS R530.1 User Assistance

# Honeywell Universal Modbus connections

Control Products controllers are designed to communicate using the Modbus TCP Modbus is a serial communications protocol. Ethernet, RS485, or RS-232 specification. See the User Manual specific to your Control Products controller Also known as remote terminal unit, RTU. A generic term for a device that is used to control and monitor one or more processes in field equipment. The most common control and monitoring device in an access control and security system is an access control panel. Other devices include security monitoring panels, elevator controllers, and fire monitoring devices. Controllers include programmable logic controllers (PLCs), loop controllers, bar code readers, and scientific analyzers. See also: C200 controller, control processor, CPM, hybrid controller, network node controller, PLC. for information about cabling requirements.

Devices using RS-232 can be connected directly to a RS-232 port on the server The computer on which the Experion database software and server utilities run. See also: Experion server TPS., or to a terminal server A terminal server allows you to connect several controllers and Stations to a LAN even though they only have serial or parallel ports. Most terminal servers also provide a range of serial connection options, such as RS-232, RS-422, and RS-485. See also: controller, LAN, Station..

Two methods are supported for connecting the server to an RS-485 network of Control Products controllers:

- Using an RS-232 to RS-485 converter (see the section below titled "Using an RS-232/RS-485 converter")

- Directly connecting the server to the RS-485 network via an add-in card (see the section below titled "Using an RS-485 adapter")

You can also connect to Ethernet TCP/IP Transmission control protocol/internet protocol. A standard network protocol. networks using Modbus/TCP Transmission Control Protocol. protocol using two methods:

- Direct Ethernet Connection (HC900 Hybrid controller., single or redundant networks, Trendview/X-Series Paperless Recorder)

- Ethernet - Modbus bridge (internal option for UMC800, DPR180, and DPR250)

Make sure that you read the User Manual specific to your Control Products controller before connecting your controllers to the network.

## Using an RS-232/RS-485 converter

Honeywell recommends that you use the Black Box LD485-HS RS-232/RS-485 Interface Converter, model number ME837A, or a Black Box IC109A-R2. These converters have been qualified by Honeywell. Use of another converter might produce unexpected results.

Figure 1-1: RS-232 to RS-485 converter

Connect an RS-232 port on the server to the RS-232 port on the Black Box converter using a standard RS-232 straight through cable. Then connect the Black Box converter and the Control Products controllers to the RS-485 network as shown below.

## Black Box connections

Figure 1-2: Black Box (2-wire) connections

Figure 1-3: Black Box (4-wire) Connections

Ensure that the Black Box switches are configured with the following settings.

An asterisk (*) designates the factory-preset jumper A movable device for providing an electrical connection or short between two points on a circuit board for the purpose configuring the equipment for a specific function or operation. settings.

Switch A multiport device that moves Ethernet packets at full wire speed within a network. A switch may be connected to another switch in a network. See also: Ethernet, network. | Setting | Description
--- | --- | ---
XW1A | jumper in* | Configure RS-232 port as DCE.
XW1B | jumper out | Do not configure RS-232 port as DTE Data terminal equipment..
W8 | B-C | 2-wire (half-duplex) operation.
W9 | C* | 0 ms RTS/CTS Request to send/clear to send. delay.
W15 | B-C | RS-485 transmitter enabled by data.
W5 | A-B* | RTS/CTS normal.
W17 | C | 2 ms transmitter enabled time. This is good for 9600 baud. Decrease for higher baud; increase for lower baud. A - 30 ms B* - 7 ms C - 2 ms D - 0.7 ms E - 0.15 ms
W16 | B* | 0.1 ms delay before receiver enabled.
Term | ON | RS-485 receiver terminated.
Bias | OFF* | Line bias off.

## Using an RS-485 adapter

Honeywell recommends using the Stallion EasyConnection 8/32 ISA 1.Industry standard architecture. 2. International Society of Automation. Mission is to maximize the effectiveness of ISA members and other practitioners and organizations worldwide to advance and apply the science, technology, and allied arts of instrumentation, systems, and automation in all industries and applications. For more information, refer to http://www.isa.org/., 8/32 PCI, 8/64 ISA, or 8/64 PCI adapters with the Stallion RS-232 to RS-485 8-port dual interface asynchronous module In SafeView, the file name and path of an executable file name. An application's module is one of the three means by which an application's display window can be “matched” and thus managed by SafeView. The other two are window title and window category.. Honeywell has qualified this adapter. Use of another adapter may produce unexpected results.

Figure 1-4: Stallion EasyConnection Adapter

## Installing the Stallion EasyConnection serial adapter

Stallion EasyConnection serial adapters are suitable for connection to RS-232, RS-422, and RS-485 devices.

Install the adapter, port module, and driver in the server as described in the Stallion documentation.

Connect a port on the Stallion port module directly to the RS-485 network as shown below. Next, connect your Control Products controllers to the RS-485 network.

Figure 1-5: Stallion RS-485 (2-wire) connections

Figure 1-6: Stallion RS-485 (4-wire) connections