How can I use COM1 port and ethernet port at the same time with ABB AC500 ECO PLC?
I am trying to read data from a power meter using modbus protocol on ABB AC500 ECO. Here, COM1 port of ABB AC500 ECO is configured as modbus interface and Ethernet port is configured as programming interface. Programming by Ethernet port is performed successfully. Unfortunately, COM1 port receives/sends no data. If possible, would you please leave your kind advices on this point? Thanks in advance.