Hi Dave, I found your video to be informative on OPC...Can you help to see if my summary below is accurate? Please feel free to correct me if I'm wrong. Thank you! :) Different industrial equipment have their own protocols. In order to allow them to communicate among one another, there is a need to make them talk the same language via Open Platform Communication (OPC). OPC is a widely accepted industrial communication standard that enables the exchange of data between multi-vendor devices and control applications without any proprietary restrictions. The function of KEPServerEx works like a ‘translator’ and converts different device protocols, BACNet, Modbus,etc in OT System into OPC.