The ring memory sets the maximum number of data records in an archive.
If this number is reached then the oldest data records is replaced by the most recent data record.
The HomeServer can never get an "overflow".

The ring memory is used in archives, reports, camera archive and EIB monitor.
All ring memory is retentive.

Cycle

This option allows automatic archiving of data in the archive. The data are recorded in cycles. The cycle time is at least one minute
Independent of this option, a data record can be stored at any time by the command "Enter in archive".
The deadtime has an effect on cyclic storage.

Deadtime

This time prevents data being recorded at intervals that are too short.
After storing, no further storing of data is possible during the deadtime.
This time is important in command-controlled recording.
The deadtime begins after storing a data record.

Time period / max. lines

Both of these fields only effect the request and the sending of E-mail.
They limit the number of data records that are to be called up/sent.
ATTENTION: The limitation of the data always refers to the last entry in the archive and what has been entered before it.
Zero (0) means "no limitation".

Example 1:
If the time is 1 hour and the number is limited to 10 data records then the request delivers a maximum of 10 data records, even if more data have accrued in the last hour.
If less data records accrue in this time then only these are shown.

Example 2:
If the time is 0 hours/minutes/seconds and the number is limited to 100 data records then the request delivers a maximum of the last 100 data records from the archive

Example 3:
If the time is 24 hours and the number of the data records is unlimited then the request delivers a maximum of all data records that have accrued in the last 24 hours.