Configuration
25
Fixed Slave Address
This parameter controls how the Gateway handles the slave
address field in the Modbus/TCP query. When set to 0, the
Gateway will use the slave address as specified in the query.
When set to a value from 1 to 247, the Gateway will ignore the
slave address field in the Modbus/TCP query and replace it
with the value specified. This option is for compatibilty with
some Modbus/TCP hosts that do not set the Slave address.
When using a fixed address, only one serial port may be used.
Main Menu Option 6.
Modbus Serial Configuration
Selecting (6) from the Main Menu will
result in the following screen:
MODBUS SERIAL CONFIGURATION:
Port 1 Modbus Protocol: RTU Port 2
Modbus Protocol: RTU
Port 1 Slave Address Low: 1 Port 2
Slave Address Low: 1
Port 1 Slave Address High: 247 Port 2
Slave Address High: 247
Port 1 Response Timeout: 2000 Port 2
Response Timeout: 250
Port 1 Character Timeout: 50 Port 2
Character Timeout: 50
SET MODBUS SERIAL CONFIGURATION:
1 Port 1 Modbus Protocol [0=RTU, 1=ASCII]
2 Port 1 Slave Address Low [1 - 247]
3 Port 1 Slave Address High [1 - 247]
4 Port 1 Response Timeout [5 - 5000 ms]
5 Port 1 Character Timeout [5 - 5000 ms]
6 Port 2 Modbus Protocol [0=RTU, 1=ASCII]
7 Port 2 Slave Address Low [1 - 247]
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