OPC Server Performance optimization

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Thread Starter

HBAttila

Server configuration:

WinCC verzió: WinCC 7.0 SP2 Update8
OPC Server setttings standard
SIEMENS Rack PC 847B
CPU No. T7400 board w/o feld bus
RAID1 2x250Gb HDD SATA
4GB DDR2 (2x 2GB)
14881 OPC tag (logging 8000 tags to SQL server)
AVReporter v3.0 R2 Advanced Edition Energy Management Software
AVR WEbpublisher v3.0 R2 Advanced
MS SQL Server 2012 Standard

AVReporter is not able to logging to SQL Server 1 minutes, because OPC server is not able to service OPC tag for AVReporter.

What is the problem? How can I optimize OPC server settings?
 
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Varga Ádám

I've had very similar problem once with AVReporter when I did a project for a large car-manufacturer company. I had store huge amount of data into the database at once (over 3000 tags) every 1 minute.
The problem was, that by the time I logged the data, the OPC tags already timed out. (it was a Siemens WinCC, by the way, maybe it helps)

I had to contact the AVR developers, and they told me to modify the configuration file of the AVReporter OPC service. It's located under

C:\Program Files (x86)\KONsys\AVReporter\AVROPCServerService\AVROPCServerService.exe.config

Here modify the "OPCRefreshRate" to a higher value (if I remember I set 60000).

They also said that it is not beneficial to have over 1000 tags for 1 OPC connection, so I guess you can check how many tags you log in 1 AVR OPC config file.
 
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