Let me first explain my setup. PC running Wonderware and communicating to AB Control Logix and a data aquisition system over ethernet. I am using Ingear OPC server for WW/PLC communication. My DAQ also has an OPC Server. Is there any easy/free way to exchange Data between the 2 OPC Servers. I realize I can go from the DAQ to WW then to the PLC, but it isn't very efficient. I know I can also write a VB app to do the exchange, but I don't think it is worth the time. Are there other options?