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  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. Difference Between SubscribeMultipleItems & SubscribeMultipleMonitoredItems

Difference Between SubscribeMultipleItems & SubscribeMultipleMonitoredItems

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03 Feb 2015 11:06 #2675 by support
Replied by support on topic Difference Between SubscribeMultipleItems & SubscribeMultipleMonitoredItems
If you are connecting to a server that supports "Classic" (COM/DCOM based) OPC specifications, such as OPC Data Access 1.0, 2.0 or 3.0, you need to use the EasyDAClient object, and therefore, EasyDAClient.SubscribeMultipleItems.

If you are connecting to OPC Unified Architecture server, you need to use the EasyUAClient object, and therefore, EasyUAClient.SubscribeMultipleMonitoredItems.

Information about which kind of server you have should come from server documentation.

Best regards
The following user(s) said Thank You: pankaj

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03 Feb 2015 10:19 - 03 Feb 2015 10:19 #2674 by pankaj
Difference Between SubscribeMultipleItems & SubscribeMultipleMonitoredItems was created by pankaj
Hello,
I wanted to know what is the difference between

EasyDaClient.SubscribeMultipleItems
&
EasyUAClient.SubscribeMultipleMonitoredItems

I guess both of them Subscribe to changes of multiple monitored items. I tried to go through the documentation but couldn't find any relevant information as such.
Last edit: 03 Feb 2015 10:19 by pankaj. Reason: Improved title of the query

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. Difference Between SubscribeMultipleItems & SubscribeMultipleMonitoredItems
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