Modbus Configuration; Baud Rate; Modbus Serial Port Settings - Honeywell TR50 User Manual

4.5 Modbus Configuration

4.5.1 Baud Rate

Modbus supports automatic baud rate and manual baud rate configuration, It can
support the following baudrate : 1200, 2400, 4800, 9600, 14400, 19200, 38400,
57600, 115200.
4.5.1.1 Auto Baud Rate
The default for the first startup is Auto Baud rate.This detection process will last
5 minutes after TR50 start to detect there is data communication from Modbus
master. If there is no right baud rate matched during this 5 minutes, TR50 will work
as the last-detected baud rate, or default to 19200 bps
4.5.1.2 Manual Baud Rate
After the default Auto Baud rate matches, please configure
cfgModbusAutoBaudrate Enable register to false, this will make TR50 work as
Manual Baud rate, then configure desired Baud rate

4.5.2 Modbus Serial Port Settings

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TR50 - User Guide
Data Bits: 8
Stop Bits: 1
Parity: None/Even/odd (Default: Even)
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