6
Heartbeat Transmission
The occupancy sensor transmits its current status regularly (“heartbeat transmission “)
during periods where no occupancy is detected. This mechanism allows the receiver to
verify that the occupancy sensor is working properly.
The heartbeat transmission starts after the second data telegram has been transmitted
which indicated that no occupancy is detected. It will continue indefinitely until
occupancy is detected or the sensor has no more energy to operate.
The heartbeat transmission stops as soon as occupancy has been detected and the
corresponding data telegram has been sent.
Heartbeat transmission functionality is optional and disabled by default. Enabling this
functionality will reduce the operation time of the sensor without power supplied by
ambient light (“dark time”).
LED blink on motion transmission (Red LED under PIR lens)
The red LED underneath the PIR lens can blink whenever motion is transmitted. This
feature is disabled by default.
Manual triggering of a data telegram transmission
Pressing the set button in normal operating mode will cause the occupancy sensor
transmit a data telegram which indicates the detected occupancy status and the supply
voltage level of the energy store as defined by EEP A5-07-01.
The green LED will blink to indicate that the data telegram has been sent.
