FAQ: Archives, messages, camera archives, EIB Monitor
Contents

1.How are ring memories, cycle, dead time, time and max. lines related?

2.Ring memory

The ring memory specifies the maximum number of data records in an archive.
If the number is reached, the oldest data record is always replaced by the newest one.
In this way, the HS/FS prevents a "memory overflow".

The ring memory is used in archives, messages, camera archive and EIB Monitor.
All ring memories are retentive.

2.1.Cycle

This option enables the automatic archiving of data in the archive. The data is recorded cyclically. The cycle time is at least one minute.
Irrespective of this option, a data record can be saved at any time by a command "Enter in archive".
The dead time also affects the cyclical saving.

2.2.Dead time

This time prevents data from being recorded at excessively short intervals.
After saving, it is no longer possible to save during the dead time.
This time is important for recording that is controlled by command.
The dead time begins after saving a data record.

2.3.Time / max. lines

These two fields only affect the query and sending by e-mail.
They limit the number of data records that should be queried/sent.
IMPORTANT: The limitation of the data always relates to the last entry in the archive, as well as all previous entries.
Zero (0) means "no limitation".

Example 1:
If the time is limited to 1 hour and the quantity to 10 data records, then the query returns at most 10 data records, even when more data has accrued in this last hour.
If fewer data records have accrued in this hour, only these are displayed.

Example 2:
If the time is limited to 0 hours/minutes/seconds and the quantity to 100 data records, then the query returns at most the last 100 data records from the archive.

Example 3:
If the time is set to 24 hours and the number of data records is not limited, then the query returns at most all data records that have accrued in the last 24 hours.