10
4.2.3
Occupancy Sensor using illumination sensor input
End point 0x22, 0x28 and 0x29 can be configured as a logic module that controls the occupancy
sensor signal base on the user defined settings for the illumination sensor input.
Logic module
If Illumination is
X < TargetLevel
Illuminance measure value
Cluster ID 0x0400
Attribute ID 0x0000
Occupancy state
Occupancy state
Use case – Energy savings in an office building
The device is installed to obtain energy savings in an office controlling the light. A ZigBee relay is
installed to turn on the light when the occupancy sensor detects movements in the room. This
functionality can be obtained by using the standard occupancy sensor Standard functionality - ZCL
attributes.
Using the manufacture specific attributes in section 4.2.1.2 provide the user with an extra check
before the air
light
is turned on.
The installer can configure the TargetLevel attribute to a user defined Lux level. When movements are
detected in the room and the Lux level is below the TargetLevel the relay turns on the light.
