| Experion HS R530.1 User Assistance

# Port properties for a Honeywell Universal Modbus channel

The Port tab defines the communication-related properties for a channel The communications port used by the server to connect to a controller. Channels are one slot, point, or screw terminal of an I/O device for a single I/O value, and are defined using the Quick Builder tool.. The Port Type for Universal Modbus can be:

- Serial. A serial communications interface, such as RS-485.

- TerminalServer. A communications link that enables controllers with a serial interface to be connected to a LAN.

- LANVendor. A communications interface using TCP/IP Transmission control protocol/internet protocol. A standard network protocol. to controllers connected to a LAN.

## Serial port properties

ATTENTION: The Serial Port settings must match the settings on your communication devices.

Property | Description
--- | ---
Serial Port Name | The device name of the serial port.
Baud rate | The number of data bits per second. The default is 9600.
Number of Data Bits | The number of data bits used for transmission. The default is 8.
Stop Bits | The number of stop bits used for transmission The default is 1.
Parity | Defines parity verification of each character and must match configuration on the end device. The default is NONE.
Checksum | The type of checksum error detection used for the port. Not applicable for this channel. Select NONE.

XON/XOFF

The type of XON/XOFF software flow control used to stop a receiver from being overrun with messages from a sender. The types are:

- Input (use XON/XOFF to control the flow of data on the receive line)

- None (default)

- Output (use XON/XOFF to control the flow of data on the transmit line)

Handshaking Options

RS-232

RS-422

- No handshaking options are available for RS-422.

RS-485

## Terminal Server port properties

Property | Description
--- | ---

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. TCP Transmission Control Protocol. Host Name

Terminal Server The computer on which the Experion database software and server utilities run. See also: Experion server TPS. TCP Port No

The name and port number of terminal server to which the channel is connected.

You can specify either a TCP host name or an IP address, but it must match the TCP host name used when you installed and internally configured the terminal server.

Idle Timeout | The time, in seconds, the channel waits for a successful connection to the server before closing the connection. A value of 0 indicates that the connection is never closed.
Checksum | The type of checksum error detection used for the port. Not applicable for this channel. Select NONE.