What is the role of interfaces IOPCServer, IOPCDataItem, IOPCGroup in OPC ( OLE for process control)

Posted by Shailesh Jaiswal on Stack Overflow See other posts from Stack Overflow or by Shailesh Jaiswal
Published on 2010-04-17T10:03:15Z Indexed on 2010/04/17 10:13 UTC
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I am currently new in OPC ( OLE for process control). I want to know about the interfaces IOPCServer, IOPCDataItem, IOPCGroup interfaces in the OPC. What are they used for & what is their role in terms of OPC Client & OPC Server & what methods & properties these interfaces conatins ? Can you provide me the answer for the above questions or can you provide me the link through which I can get the knowledge of the above topics ?

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