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OPC operation failure

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07 Nov 2011 19:12 #599 by support
Replied by support on topic Re: OPC operation failure
This exception comes from the QuickOPC.NET. Do you have the license installed? (check in License Manager). Does the version in use match what you have purchased? (Version 5.0x versus 5.1x?)

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07 Nov 2011 17:22 #598 by julian
Replied by julian on topic Re: OPC operation failure
The inner exception is: "Run time is over limit." The license you have (most likely a trial version) does not provide valid data after certain time period expires....Is this opc.net or our opc server (kepware)?

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07 Nov 2011 17:15 #597 by julian
OPC operation failure was created by julian
Hi,We've been having trouble with opc.net for some time now. It stops responding for a while and then starts to work again. The error message is "OPC operation failure".I have a try/catch block with the following code: OpcLabs.EasyOpc.DataAccess.DAVtq tag = opcClient.ReadItem(serverDescriptor, infoNode.SelectSingleNode("Details").InnerText) ;This block throws the error. Any help would be appreciated.

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  5. QuickOPC-Classic in .NET
  7. Product Lifecycle, Licensing
  9. OPC operation failure
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