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How to extract previous value from a step/ digital style tag

Question asked by ldryden on Nov 28, 2016
Latest reply on Nov 30, 2016 by MISugiyama

Hi all,


I am trying to extract the previous value from a Pi tag that alters in step changes. The interval between the step changes is not uniform therefore I am unable to set a precise window of time where the sample could be taken. If possible I would also like to extract the value that is two previous to the current value.


Hope you can help.