Please ensure Javascript is enabled for purposes of website accessibility
Powered by Zoomin Software. For more details please contactZoomin

AVEVA™ Historian

COUNT

  • Last UpdatedMar 20, 2025
  • 1 minute read

The COUNT() function returns a count of the delta points for a stream. Note that if the quality detail of a point differs from the previous point, this counts as a delta point, even if the value doesn't change.

Syntax

Format

Stream = COUNT(Stream)

Arguments

Stream - A time-ordered vector of values

Description

Returns a count of delta points during the query period. The query period is based on local time.

Format

Stream = COUNT(Stream, TimeInterval)

Arguments

Stream - A time-ordered vector of values

TimeInterval - The time interval over which the delta points are counted

Description

Returns a count of delta points over the specified time interval during the query period. The query period is based on local time. The returned start time is rounded down to the time interval's unit. For example, if the interval is hourly, the time stamps of all values end with "00:00.000".

Related Links
TitleResults for “How to create a CRG?”Also Available in