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DataLink:  Simple method to output changed values only?

Question asked by moodymi1 Champion on Aug 5, 2020
Latest reply on Aug 6, 2020 by moodymi1

Can anyone recommend a good and simple approach to retreive "only changed values" with datalink (compressed data or other function)?  Since archive settings allow for a max time to be specified between archived values, it is possible to have multiple archive entries for a tag whose value hasn't changed.  I would like to only retrieve the first occurance of each new value (see table below)..  

 

A major competitor to OSIsoft provides an option to show only changed outputs with their "History Values" function in their excel add-in. See attached which shows the difference in output based on a single checkbox.  I'm hoping for a similar approach with PI Datalink.  

 

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