opc server & opc client

[KIKO 0]

is it right that to run an HMI program on a pc we should have an OPC Server and an OPC Client on that pc?. does the I/O server represent the OPC server and the HMI program(Wonderware or any other) represent the OPC client?

[glaverty 1]

Sounds about right. The client doesn't have to be on the same computer as the Server though.

[sathya 1]

if u hav gateway u don require in the same pc i think