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

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08 Oct 2015 10:29 #3605 by support
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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07 Oct 2015 12:38 #3598 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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