OPC Client to ABB PLC in Visual Basic

Feb 23, 2005 1 Replies

Dear group,



I am trying to find an OPC Client that works with the ABB PLC. I use Visual Basic as the development platform. Does anyone have any recommendations? It doesn't have to be freeware. Any recommendations when Visual C is the development platform?



Thanks in advance.



Henk Borsje


Hi,

An OPC client cannot directly communicate with ABB-PLC. For that you must have an OPC server for ABB-PLC. Check this link

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. This includes a list of differnt OPC server for various PLC.

For getting data from OPC Server in VB, you have different options:

# You can directly use VB automation wrapper supplied by OPC foundation (free) or check for DA automation wrapper at this link

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Automation Wrapper . You should have some knowlege of OPC Standard.

# You use any OPC client Active X. Free as well as commerical solutions are available. Check this link

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. For VC it is also same, you can use third party library.

The most important is getting OPC server for ABB-PLC, and not the client. A OPC client will talk to any OPC server.

HTH,

Bhuvnesh Jain

"technology takes over" Tech> Dear group,

recommendations? It

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