The default, simplex DeltaV OPC Data Access Server included with an Application Station or ProfessionalPLUS workstation is named OPC.DeltaV.1. To connect an OPC client to the redundant OPC server, do not configure a connection between the client and OPC.DeltaV.1, as this simplex server does not support redundancy. Instead, you must configure the connection between the client and ROPC.nodename.1, the local, proxy server for the active DeltaV OPC Data Access Server on nodename in a redundant pair.