Digi Connect IT 16

Services Modbus gateway
Digi Connect IT® 16/48 User Guide
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n If connection_type is set to serial:
i. Set the serial port:
i. Use the ? to determine available serial ports:
(config service modbus_gateway server test_modbus_server)>
... serial port ?
Serial
Additional Configuration
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port1 Port 1
(config service modbus_gateway server test_modbus_server)>
ii. Set the port:
(config service modbus_gateway server test_modbus_server)>
serial port
(config service modbus_gateway server test_modbus_server)>
ii. Set the packet mode:
(config service modbus_gateway server test_modbus_server)>
serial packet_mode value
(config service modbus_gateway server test_modbus_server)>
where value is either rtu or ascii. The default is rtu.
iii. Set the maximum allowable time between bytes in a packet:
(config service modbus_gateway server test_modbus_server)>
serial idle_gap value
(config service modbus_gateway server test_modbus_server)>
where value is any number between 10 milliseconds and one second, and take
the format number{ms|s}.
For example, to set idle_gap to one second, enter 1000ms or 1s.
iv. (Optional) Enable half-duplex (two wire) mode:
(config service modbus_gateway server test_modbus_server)>
serial half_duplex true
(config service modbus_gateway server test_modbus_server)>
c. Repeat the above instructions for additional servers.
5. Configure clients:
a. Type ... to return to the root of the configuration:
(config)> add service modbus_gateway server test_modbus_server)> ...
(config)>