Zenon Server crash potentialy because of high number of variables
Hello, We are actively working on a Windrafm project that has been divided in several projects.
One of them has aprox. 330000 variables on active communication with S7 driver.
(what is the maximum suggested number of variables in active communication and logging for a snappy system??)
Because we use complex faceplates that include menu bars and several image templates, and the sheer number of variables, we activated the "Permanently read variable" option, in order to get a more responsive screen switch.
This, or maby another factor that I don't know about, has lead to huge "arx" and "aml" files that are used to retrieve hystorical data from the event list / alarm list and trend archiving.
The end result is that when the operator tries to retrieve archived events or trends, the Zenon proces becomes inresponsive, somtimes leading to "exceeded time cycles" witch in term lead to a crash of the system.
I am guessing that this has to do something with the sheer amount of data the processor needs to parse in these encrypted binary files containing historical events / alarms / trends.
(have seen files as large as 400mb)
My question is ... how does one improve performance?
Suggested from the top of my head :
a) .Decrease binary file's used for data and event storage sizes ex: .ARX files *** any way to achieve this ?
b). Partition the project into Several other smaller Projects ?, on several servers
c). Sensible answer from Copadata , if the above does not make sense.
This is a migrated post! Originally posted on 06.03.2019 by user Szekelyhidi. Please be aware that information can be outdated.
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