Location2 (time stamp adjustment)
- Last UpdatedOct 06, 2025
- 1 minute read
- PI System
- PI to PI Interface 3.10.3
- Interfaces
Location2 is used to specify how data time stamps are adjusted. The source Data Archive supplies a timestamp for each data event. Users have the option of adjusting these timestamps to account for time differences between Data Archives. It is required that each Data Archive have the correct system time for its configured time zone. See Data timestamps for additional information.
Valid settings are as follows:
|
Location2 Value |
Adjust for Clock Drift* |
Truncate Sub-second Time stamps** |
|---|---|---|
|
0 or 1 |
-- |
-- |
|
2 or 3 |
Yes |
-- |
|
4 or 5 |
-- |
Yes |
|
6 or 7 |
Yes |
Yes |
* Receiving Data Archive is the primary time. Timestamps are adjusted to receiving Data Archive time. An offset of 15 minutes or less is considered clock drift.
**Truncating sub-second time stamps can lead to data loss during history recovery and archive data scanning if multiple events are stored within the same second. Use with caution.