Rockwell Automation FactoryTalk Historian SE DataLink 4.2 User Guide - Manual (Page 103)

8
●
Supplementary Information
●
●
●
●
●
95
Aggregate Functions
Name Description
Avg Average.
Max Maximum.
Median Median selector.
Min Minimum.
PStDev Population standard deviation.
SStDev Sample standard deviation.
Total Sum.
Miscellaneous Functions
Name Description
BadVal See if a value is bad (not a number or time).
Curve Get value of a curve.
DigState Get digital state from a string.
IsDST Test whether a time is in local daylight savings time period.
IsSet Test if a FactoryTalk Historian value is annotated, substituted, or questionable.
StateNo The code number of a digital state.
TagBad See if a point has an abnormal state.