Learn about time-interval specifications
- Last UpdatedDec 13, 2024
- 1 minute read
- PI System
- PI Server 2024 R2
- PI Server
Time-interval inputs define intervals for collecting or calculating values during a time period. For example, you might specify a 60-minute interval to compute an hourly average over a 12-hour period. To specify time-interval inputs, enter a valid value and time unit that is either positive or negative.
Positive values
Positive values define intervals that begin at the earlier time in the period and that finish at or before the later time in the period.
|
Start time |
2:00:00 |
|
End time |
3:15:00 |
|
Time interval |
30m |
|
Returned intervals |
2:00:00 to 2:30:00 2:30:00 to 3:00:00 |
Negative values
Negative values define intervals that finish at the later time in the period and that begin at or after the earlier time in the period.
|
Start time |
2:00:00 |
|
End time |
3:15:00 |
|
Time interval |
-30m |
|
Returned intervals |
2:15:00 to 2:45:00 2:45:00 to 3:15:00 |