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
Hello Bian,
Here is what is available in PcVue help. Is it enough?
Regards
Edouard
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?
"PcVue SITES" or "PcVue SIDES" ?
Yes, if it is not ticked, I think that could be a cause of troubles.
Nico
Thank you !
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
Hi, Edouard.
Thanks, I will check this email.


