| Type | Initial value | Description |
| Input 1 | 0 | Signal for monitoring. Counter starts counting when the value does not equal zero. |
| Input 2 | 0 | Measuring interval in seconds. The value of the input is checked at these time intervals. If the value is not equal to zero then the operating-hours counter is increased by this measuring time. Example: |
| Input 3 | 0 | Reset; a value not equal to zero sets the operating-hours counter to zero. Output 1 and Output 3 thereby send a 0. Output 2 sends the residual value (corresponds to the set value). |
| Input 4 | 0 | Set value in decimal hours |
| Output 1 (send by change) | 0 | Operating hours in decimal hours |
| Output 2 (send by change) | 0 | Residual value in decimal hours |
| Output 3 (send) | 0 | Alarm Sends a 1 when the operating hours > set value. |
| HS Commands (Output 1) | - | The commands assigned here are run when the value of output telegram at output 1 is not equal to zero. |
| HS Commands (Output 2) | - | |
| HS Commands (Output 3) | - |
| Telegram interval | - | Can be changed. |
| Recalculated on start | Yes | |
| Module is retentive | No |