You need to use "Modbus RTU over TCP", not "Modbus TCP" for such a connection. The user manual for my advanced modbus module has Moxa configuration notes you will wish to follow, but those happen to apply to IA's native Modbus driver, too.
You need to use "Modbus RTU over TCP", not "Modbus TCP" for such a connection. The user manual for my advanced modbus module has Moxa configuration notes you will wish to follow, but those happen to apply to IA's native Modbus driver, too.