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  5. QuickOPC-Classic in .NET
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  9. Managing shared connection to the OPC-DA Server

Managing shared connection to the OPC-DA Server

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03 Apr 2024 12:27 #12713 by support
Replied by support on topic Managing shared connection to the OPC-DA Server
If simply opening a new connection to the server resolves the situation, you can switch to a new EasyDAClient with Isolated=True.

If, however, disconnecting all connections is needed so that the server process shut itself down and only then it comes up functioning well again, our only workaround is as I explained in my previous post.
The following user(s) said Thank You: Andriy

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03 Apr 2024 10:11 #12710 by Andriy
Replied by Andriy on topic Managing shared connection to the OPC-DA Server
Thank you for the prompt response.

My application communicates with an unstable OPC-DA Server. The only solution is to reopen communication with it when the OPC-DA server stops responding.

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03 Apr 2024 09:54 #12709 by support
Replied by support on topic Managing shared connection to the OPC-DA Server
Hello,
there is no direct method to do this in QuickOPC.

The connection will be closed by QuickOPC after configurable time after all subscriptions are unsubscribed, and no more one-time operations (read/write/...) are being performed.

Why do you need that?

Best regards

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03 Apr 2024 06:54 #12707 by Andriy
Managing shared connection to the OPC-DA Server was created by Andriy
Hello,
In my application, multiple instances of the EasyDAClient class are created, each potentially can communicate with the same OPC-DA Server. In this scenario, the connection to the OPC-DA Server is shared (Isolated property set to false). Is there a straightforward method to close or reopen this shared connection to the OPC-DA server?

Thank you

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Connections, Reconnections, COM/DCOM
  9. Managing shared connection to the OPC-DA Server
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