The purpose of this document is to provide the reader with an application note for setting up an OPC Server, (KEPServer Enterprise) communicating Modbus TCP with an Elpro 105/905U-G-ET1 gateway.

This application should be read in conjunction with user manuals for details on powering and programming 105/905U-G. The reader would also have a firm understanding of the Modbus TCP protocol and programming the Kelpwares KEPServer OPC Server.