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OPC DA failed to convert IOPCGroupStateMgt2

Hari Harivishnu

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01/18/2021 - 19:25

Hello,

I am new to OPC.

We are working on developing a .NET OPC client application which will support both DA,UA and AE .
Initially we tried using the opensource to develop the Client App for DA and is worked fine for most of the servers.
We run into a problem when we are testing with ABB 800Xa(ABB.AfwOpcDaSurrogate.1) system.
The Open source which we are using is failed to convert server com object to IOPCGroupStateMgt2 Interface for group reading.
I would like to know the proper OPC DLL/source code for OPC client application development and cost related to same.
We will be grateful for your help and support.

Thanks,

Vishnu

Randy Armstrong

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01/19/2021 - 07:24

It is possible the server does not support the IOPCGroupStateMgt2 interface but it should support IOPCGroupStateMgt.

Check if that is the case.

Hari Harivishnu

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01/19/2021 - 21:57

Yes, That is the problem, I cannot change My OPC server, So Is there any way that I can force my OPC client(based on TitaniumAS opensource) to use IOPCGroupStateMgt interface or can you guide me to proper solution/DLL Which can help to solve the issue.

Randy Armstrong

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01/20/2021 - 08:55

You will have to ask on the support forum for the client software you are using.

I am not familiar with TitaniumAS.