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Does the tags zero setting do anything?  I have many tags with a zero = 0 yet they still store negative values in the data archive.

Question asked by Shchurd on May 23, 2016
Latest reply on May 24, 2016 by John Messinger

Does the tags zero setting do anything?  I have many tags with a zero = 0 yet they still store negative values in the data archive.  I thought that values not between zero and zero+span would be filtered out.

 

I am attempting to create an AF analytic using Tagmax - Tagmin to determine a maximum rate of change within a time period.  However, data outliers are creating false high rate of change alerts.

 

I am using Pi Data Archive 2015 R2.

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