about [Purge pending OnDataChange]

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(@l-bianarcinfo-com)
Posts: 60
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Hello,I have some questions about the setting options of OPC in the [server].
A setting named [Purge pending OnDataChange]
What does this option mean, can someone help me explain.
What kind of function does it have when it is selected.

BR

 
Posted : 01/09/2021 8:09 am
e.mahaut
(@e-mahautarcinfo-com)
Posts: 270
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Hello Bian,

Here is what is available in PcVue help. Is it enough?

Regards
Edouard

 
Posted : 01/09/2021 1:53 pm
(@l-bianarcinfo-com)
Posts: 60
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Topic starter
 

Thank you, this is enough.
Can the OPC client and OPC server mentioned here be both PcVue sites?
If it is not checked. I think the cache will keep increasing. Could this be the cause of PcVue's crash?

 
Posted : 01/09/2021 3:30 pm
n.kunzer
(@n-kunzerarcinfo-com)
Posts: 1236
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"PcVue SITES" or "PcVue SIDES" ?

Yes, if it is not ticked, I think that could be a cause of troubles.

Nico

 
Posted : 01/09/2021 3:46 pm
(@l-bianarcinfo-com)
Posts: 60
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Thank you !

 
Posted : 01/09/2021 4:06 pm
e.mahaut
(@e-mahautarcinfo-com)
Posts: 270
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Hi Bian,

Maybe you could refer to a probable similar case, SPR 68691 and email sent to all your team on the 28th of January 2021.
Dominique did an accurate analyse for Log Files and Dump.
...
--- OPC server to manage external local or remote OPC clients ---
[ Pending data changes ] Current = 36 628 359 Cumulative = 36 628 359 Currrent allocated memory = 36 628 359
...

And he suggested to activate 'Purge pending OnDataChange' option

Regards
Edouard

 
Posted : 01/09/2021 10:30 pm
(@l-bianarcinfo-com)
Posts: 60
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Hi, Edouard.
Thanks, I will check this email.

 
Posted : 03/09/2021 4:54 pm