The parameter is important in periodical archiving
- defines the behaviour of the function if the archive database does not contain a value with the time specified
by the parameter time.
Possible values:
@TRUE - the function returns invalid
value,
@FALSE - the function retrieves the value
with nearest older time.
Example
The statement in the example below
calculates the difference between current value of the object H.Arc1
and its value a minute ago.