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Read OPC UA variables takes 30% more CPU Load!

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support
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17 Oct 2019 14:32 #7839 by support

Replied by support on topic Read OPC UA variables takes 30% more CPU Load!

Hello.

Instead of calling the Reads in a loop, use a single call to ReadMultiple.

More information:
- opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...%20instead%20of%20looping.html
- opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...20nodes%20or%20attributes.html

Best regards

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Moien
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17 Oct 2019 12:33 - 17 Oct 2019 12:35 #7837 by Moien

Read OPC UA variables takes 30% more CPU Load! was created by Moien

Dear all,

I am trying to read some OPC Variables from the OPC Server. They are mainly grouped in four different nodes. In one node I just have an array with "double word" entries. In the other three nodes, I got different single variables. I try to read these variables making two objects of OPCUA Client, one for the node with the array (from PLC) and the other client for the other three nodes. My "ReadItemVQT" function (as attached to this message) increases 30% the CPU load!! Can someone help me how to modify my function in order to decrease the CPU load?

Regards
Moien

Last edit: 17 Oct 2019 12:35 by Moien.

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