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4.5
Description of functions
Note
A more detailed description is available in the Description of parameters and
objects.
The devices described here can, depending on the device type, be used either as presence
and/or movement detector.
4.5.1
The difference between movement detector and presence detector:
The main application of the movement detector is the switching of light when persons are
moving toward something. The main application of the presence detector serves for presence
monitoring and makes it possible to switch lighting, heating or similar.
In a deactivated state the movement detector also switches without brightness. In an activated
state it operates independent of the brightness.
Both movement detector and presence detector are based on the same detection principle.
However, the detection segments of the presence detector have a finer mesh and can therefore
also detect persons that are seated as being present and respond accordingly. In addition, a
presence detector, different to the movement detector, can distinguish between artificial light
(which has been activated by it) and natural light; this makes functions such as constant light
control possible, for which the amount of artificial light is added to obtain a certain overall
brightness.
Main applications:
Movement detector: Movement, detection range, detection of walking persons.
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Presence detector: Also sitting activities.
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KNX Technical Manual 2CKA001473B8667 │ 06.02.2017
Product description
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