Impact of UDT usage on performance

[m.pelagatti]

Hi,
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Opc and Leased Tag Group

Hi to everyone! I have a problem with Opc Ua and Leased Tag Group. Inside my project I have too many tags with OPC (about 2900 tags) and this cause the tag quality to be “Good_Overload” when the system drop the scan frequency to ensure the readability of all the tags. I would like to know if there’s some way to decrease temporarily the scan frequency of the Opc Tags. I have tried to use the the leased tag group in order to slow the update of hidden tags, but it doesnt work: I see the tag updatin…

is not possible to use derivative tags to read a document and use leased tag group, because each derived tag request information to document tag , and is the same like it's showed in a page.

I'm in testing another tag group but driven, and request tag only with a bit (for me it's a cycle.started)

i use this group in document tag and all tag connected to this cycle.
When bit is on , refresh is 1500ms, when is off refresh 3000ms

Tell me if is useful for you.