Access denied COM Exception : SAP PCo 2.3 connecting to remote OPC server

[Former Member]

Hi guys,

We have scenario where we have to connect to CImplicity HMI OPC servers using SAP PCo.

SAP PCo 2.3 has been installed on seperate machine (Not on same machine where OPC server is installed)

We are able to find OPC servers on source system. I have selected appropriate OPC server.

When I click on browse button on 'subscrption items'  -> browse button,

it gives below error

Connectivity failed.Check the conection and try again.

Severity Fatal [COM Exception]

Access denied.

I suspect that this can be DCOM issue.

But your valuable comments are welcomed.

Again if it is DCOM issue, How do we fix it?

Please help.

Regards,
Ajinkya

[former_member196557 · Accepted solution]

Hi Ajinkya,

You are correct, any time that you attempt to access a remote OPC Server you will have to configure DCOM on both the client (PCo) and the server (OPC Server).  The Cimplicity HMI product should have a document available to provide guidance on configuring DCOM for OPC DA connectivity.  If not, look at this document:

http://support.ge-ip.com/support/resources/sites/GE_FANUC_SUPPORT/content/live/DOCUMENT/0/DO351/en_U...

However, it may be required to configure DCOM in order to satisfy customer security requirements.

Regards, Steve

[Former Member · Accepted solution]

Thank you Steve.