trying to read OPCserver data to SAP ODA system through PCo.
In transaction COOPC1, when we are trying to subscribe the tags from ERP system by register option, throwing error .
as "Error while accessing OPC server".
Also in PCo logs msg is as "RFC Server (ODA) application error: Uncaught exception SAP.Middleware.Connector.RfcAbapException thrown in SAP.Manufacturing.Connectivity.RfcServer.PCoRfcOdaServerFunctionHandler.ItemSubscrCreate when executing RFC server function COOPC_RFC_ITEM_SUBSCR_CREATE".
Can any one tell me the reason for this error and how to subscribe tags from ERP system.