Indicates values which are a continuous stream of totalization and should be read by computing the delta.
If a point is historized this means that we have a time-series sampling of the point's value over a time range. Historized points are sometimes called logged or trended points. Historized points should be tagged with the
If a point implements the
his tag, then it should also implement these tags:
tz: all historized points must define this tag with their timezone name (must match the point's site timezone)
hisInterpolate: optionally defined to indicate whether the point is logged by interval of change-of-value
hisTotalized: optionally defined to indicate a point is collected an ongoing accumulated value
The current status of historization is modeled with: