PI Tag Data and Calculation
Using the PI Tags we set up in the PI Tag Creation \topic, “RunHours” and “ND_RunHours” have the following data:
PI Tag Data – RunHours and ND_RunHours
| RunHours | ND_RunHours | Time |
|---|---|---|
| Value | State Number | State Name |
| 1 | 1 | Run |
| 0 | 0 | Stop |
| 1 | 1 | Run |
| 0 | 0 | Stop |
| 1 | 1 | Run |
Values in PI Tags are “Run” and “Stop”, which are the Digital State Names. The corresponding State Numbers are “1” and “0”.
In the table, PI Tag – Number of Hours in each State, we can see the number of hours that the instrument was in a specific state.
PI Tag – Hours in Each State
| Event Start Time | Event End Time | Run or 1 | Stop or 0 |
|---|---|---|---|
| 01/01/2017 12:00:00 AM | 01/01/2017 10:02:03 AM | 10 h 2 min 3 s | 0 h 0 min 0 s |
| 01/01/2017 10:02:03 AM | 01/02/2017 12:00:00 AM | 0 h 0 min 0 s | 13 h 57 min 57 s |
| 01/02/2017 12:00:00 AM | 01/03/2017 12:00:00 AM | 0 h 0 min 0 s | 24 h 0 min 0 s |
| 01/03/2017 12:00:00 AM | 01/04/2017 12:00:00 AM | 24 h 0 min 0 s | 0 h 0 min 0 s |
| 01/04/2017 12:00:00 AM | 01/05/2017 12:00:00 AM | 0 h 0 min 0 s | 24 h 0 min 0 s |
| 01/05/2017 12:00:00 AM | 01/06/2017 12:00:00 AM | 24 h 0 min 0 s | 0 h 0 min 0 s |