Cannot connect to OPC server for browse

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1

I’m trying to use FactorySQL to retrieve data from a local KEPServer-EX OPC server. In the Frontend when I try to expand the OPC server tree to see the items configured in the OPC server I get the error message “Browse failed with message: Cannot connect to OPC server for browse”.

I can solve problem by configuring the FactorySQL service to run as “Local System” but I really need it to run under another account to facilitate communication with another OPC server (DeltaV).

Please tell me how to resolve this issue. If this is a permission issue, can you tell me which permissions are required to browse the OPC server?

2

Thank you for the phone support. In DCOM Configuration, I ended up only needing to allow Local Access in the Default Security of the Access Permissions for the “Everyone” group. No change was required in the Launch Permissions.

I was also able to remove specific permissions for the account that FactorySQL is running under.

3

No problem. For the sake of others who might stumble on this thread looking for DCOM help, I’d like to mention another thread that’s got a downloadable dcom guide and some info on dcom error logging: http://www.inductiveautomation.com/forum/viewtopic.php?f=25&t=2259

Regards,