Supported time-series functions
- Last UpdatedMar 19, 2025
- 1 minute read
AVEVA Historian supports using time-series functions in expressions. These functions enable you to compare and manipulate data.
The following time-series functions are supported:
|
Function |
Purpose |
|
AVERAGE |
Calculates the time-weighted average for a stream. |
|
AVERAGES |
Calculates the statistical average for a stream. |
|
COUNT |
Returns a count of the delta points for a stream. |
|
COUNTALL |
Returns a count of the data points for a stream. |
|
DURATION |
Calculates the duration of TRUE states in an expression. |
|
METER |
Returns the delta change of a stream's value. |
|
MIN/MAX |
Selects the minimum/maximum value of a stream. |
|
PREV/PREVGOOD |
Returns the last value from the previous time period. |
|
TOTAL |
Calculates the time-weighted total for a stream. |
|
TOTALS |
Calculates the statistical total for a stream. |