I have a fx1n plc which I want to use with Rs View. I already have an SLC 5/04 running with Rs View and Rs Logix via DF1. So far the only solution I found is to buy an OPC server for the FX1N and use Rs view as OPC Client. I`d like to know if it is the right way to solve the problem. I have the same problem with a Delta PLC which uses MODBUS. So I think I shouls use another OPC server for Modbus too. As you can see I must use Rs View to supervise the group of PLC. Thanks for yours answers in advance. Luciano - Buenos Aires - Argentina.