The following data are stored permanently in the retentive memory:

These are once more available after a return of power or a restart of the HomeServer. This non-volatile memory is kept in the HomeServer under the name retentive memory. The HomeServer automatically stores these data every 15 minutes (if changed). The data are also stored before reprogramming by the Expert. If a restart is made (e.g. due to power failure) then all data not yet stored are lost!!! All retentive data are immediately stored permanently before programming during transfer.

The retentive memory can be deleted in the program item Transfer.
The retentive memory can be stored in the program item Main screen / HomeServer / Store retentive data.
The retentive memory can be uploaded in the program item Main screen / HomeServer / Upload retentive data.