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How to schedule PI OPC Interface to collect data at exact point in time? Options · View
sutasu
#1 Posted : Thursday, July 15, 2010 9:56:39 AM
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Joined: 6/11/2010
Posts: 11
Location: Russia, Moscow
As far as I know, Scan Class in Interface Configurator contains the amount of time between updates. That's OK, but how do I make it collect data, e.g. starting at 00 hours 00 minutes 00 seconds and then every following 60 seconds? How to get rid of that non-zero seconds tail?
Thank you in advance.
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Ana-Maria
#2 Posted : Friday, July 16, 2010 6:08:07 AM
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Joined: 10/1/2008
Posts: 22
Location: Romania
Here is something that you can try: When you are configuring the tag to collect from that interface you can do a series o settings for attributes : for the snapshots there : exdevpercent , excdev , exmin, exmax.

Useful for you it will be to configure the "exmin" attribute : you can set with this the minimum amount of time between 2 snapshot value (you have to put it in seconds ).


Ana
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