Questions:
1. Can you use OPCWatchit from the ProPlus to access the OPC Server on the App station?
2. Vice versa? Can you use OpcWatchit on the App station to acces the ProPlus OPC Server?
When connecting an OPC client to a DeltaV OPC Server from the Interactive Windows Logon, the DeltaV OPC server checks to see if the user is logged in to the DeltaV Application. In other words you will not be able to use a local OPC client to a DeltaV OPC server *interactively* without first logging into DeltaV. If the Local OPC client is run as a service, (or if the OPC client is remote), this is not a concern.
By the way, 80070005 is the ubiqitous error code for "Acess Denied".