I have a two separate Rockwell Compactlogix with Ethernet/IP PLCs that I would like to communicate to a single modbus RTU device. Is it possible to connect both PLCs, in order to control this device from either PLC? In this case it is to control the opening/closing of a pinch valve. Any specific programming tips for this implementation would be helpful. Thanks.
Hello @rdptech,
What device are you working with?
For the most part you can have multiple EIP connections to our device. You should be able to have one class 1 exclusive owner connection and then a listen only connection or you can use a class 3 explicit message connection using message instructions.
Deryck