Can PM571 or PM581 be compatible with CP635??
I'd like to know if it is possible that PM571 (or PM581) is compatible with CP635.
If you know that, please reply.
Voted best answer
I don't know your exact CPU code (PM571 or PM571-ETH etc.) and OP Code(CP335 or CP635-WEB etc.)
Anyway, if your AC500 series CPU has ethernet port and CP635 OP has ethernet port too, you can easly communicate these through Modbus TCP protocol.
If your CPU and OP has just serial port, so you can easly communicate these through Modbus Serial (RS485) protocol.
Hope it helps you.