Hi Steve & Swaroop,
Hooray, now I am able to see all OPC server in PCo.
My client people reinstalled the Wondarware OPC with new version (Wonderware InTouch 2014).
I have installed the following things
OPC Core Components Redistributable (x86)
OPC UA Local Discovery Server
SAP PCo
In DCOM Settings we have set the Launch and Activation Permissions& Access Permissions to Use default for OpcEnum in Security tab.
And restarted the OPCEnum Service.
Thank you so much for your inputs.
Regards,
Vijay A.