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When we should select historical mode in tag item property for historian tag configuration?

Published date: 13 June 2019

This Historical Mode is more suitable for RTU or similar devices where SCADA connection with device is not continuous.
 
For example ,if you want to log a tag after every 10 sec. then you have to change it`s item property to "Historical Mode" and to
acquire tag data for a tag in historical mode the tag must be bound to a trend tag of VJC to allow time-stamped data to be
retrieved from the SCADA source.

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