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  9. ReadMultipleItems in OPC DA Client while OPC DA Server reboots

ReadMultipleItems in OPC DA Client while OPC DA Server reboots

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28 Mar 2024 06:58 #12697 by support
Replied by support on topic ReadMultipleItems in OPC DA Client while OPC DA Server reboots
Yes.
The following user(s) said Thank You: Marrgo

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27 Mar 2024 23:26 #12696 by Marrgo
Replied by Marrgo on topic ReadMultipleItems in OPC DA Client while OPC DA Server reboots
Are you correct in explaining that even if the OPC DA Server is turned off for more than a day and then turned on again,

the OPC DA Client program can reconnect and receive data just by continuously calling the ReadXXXX function?

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27 Mar 2024 10:31 #12694 by support
Replied by support on topic ReadMultipleItems in OPC DA Client while OPC DA Server reboots
Hello.

QuickOPC handles the connections and reconnections fully automatically. You do not need to care about them. Yes, you can simply continue calling the ReadXXXX method, that is precisely how we envisioned the usage of the product.

Read: opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Late...tml#Connection%20handling.html .

I hope this helps
Best regards

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27 Mar 2024 02:20 #12691 by Marrgo
ReadMultipleItems in OPC DA Client while OPC DA Server reboots was created by Marrgo
In a situation where data is being read every second from the OPC DA Server using the ReadMultipleItems function,

If the OPC DA Server is shut down for a certain period of time (for example, about a day) and then turned on again,

Can the OPC DA Client automatically reconnect to the OPC DA Server and read data normally just by continuously calling the ReadMultipleItems function?

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Connections, Reconnections, COM/DCOM
  9. ReadMultipleItems in OPC DA Client while OPC DA Server reboots
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