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  9. occasional errors in the OPC tag subscription from the remote OPC server

occasional errors in the OPC tag subscription from the remote OPC server

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08 Oct 2015 10:29 #3605 by support
Replied by support on topic occasional errors in the OPC tag subscription from the remote OPC server
All these error appear to come from the underlying COM/DCOM, RPC and networking infrastructure. They can have relation to things like networking problems, server crashes, or software incompatibilities (proxies/stubs, OS etc.).

QuickOPC is only delivering these errors to your code, without having knowledge for their root cause or a chance to correct them. You need to investigate and look for the problem in these lower (Microsoft) layers.

Best regards

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  • saravana48
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07 Oct 2015 12:38 #3598 by saravana48
occasional errors in the OPC tag subscription from the remote OPC server was created by saravana48
Hello,
The following errors throws occasionally during the OPC tag subscription from the remote OPC server.

1) OLE received a packet with an invalid header.(-2147417839)
2) The stub received bad data. (-2147023113)
3) The server process could not be started because the configured identity is incorrect. Check the username and password. (-2147467238)
4) The remote procedure call failed. (-2147023170)
5) The RPC server is unavailable. (-2147023174)

Client : QuickOPC 5.31
Server : SWToolbox.TOPServer.V5

Note: set the EasyDAClient.SharedParameters.Client.UseCustomSecurity to False

Please give more information and also cause/reasons for the errors.

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. occasional errors in the OPC tag subscription from the remote OPC server
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