Event Memory; Modification Memory - Siemens FDA241 Technical Manual

Maintenance / Repair
8

Event memory

8.9
8.10
100
Building Technologies
Fire Safety
Event memory
Various changes/events that are not activated or controlled directly by a person are
written to the aspirating smoke detector's event memory.
The table below shows which events are stored in the event memory:
Event
Status changed
Airflow changed
Smoke changed
Temperature changed
Power supply changed
Purge state changed
The event memory can be read via the mini USB interface and the 'FXS2051 ASD
Configuration Tool' software. The events are listed and separated from one another
by commas.

Modification memory

Various changes/events that are activated or controlled directly by a person are
written to the aspirating smoke detector's modification memory.
The table below shows which events are stored in the modification memory:
Event
Device reset
Tool connected
Access level changed
Settings changed
Property changed
FW changed
Button pressed
Time changed
The modification memory can be read via the mini USB interface and the
'FXS2051 ASD Configuration Tool' software. The events are listed and separated
from one another by commas.
Meaning of the saved value
Aspirating smoke detector's status has changed (e.g. alarm, error).
The airflow value has changed by more than 3 LEDs on the front
indicator.
The smoke value has changed by more than 2 LEDs on the front
indicator.
The temperature has changed by more than 5 °C.
The operating voltage has fallen below 24 V.
The purge state has been changed, e.g. from 'Off' to 'On' during
automatic blowing out.
Meaning of the saved value
The aspirating smoke detector was restarted/switched on again
The 'FXS2051 ASD Configuration Tool' software was connected via the
mini USB interface
Access rights changed

Housing cover opened

Password entered

Settings for the detector line were changed.
Configuration was changed.
Firmware was changed.
Button was pressed.
Buzzer off

Airflow normalization

Normalization smoke value

Time was overwritten by restart.
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2015-09-29