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KNX 2007 - 283 Pages
Measured
ambient
brightness
Brightness gradient Range 2
Range 1
at least 10 min.
Twilight value
Movement
detection/
delay
Message
Artificial light
ON
OFF
Message at
the beginning
of detection
Message at
the end of
detection
Message at
the beginning
of detection
Message at
the end of
detection
Transmit delay
Time
Range 3
Twilight value
+ hysteresis
Time
Time
Time
94
Presence detector – Universal Ref.-No. 3360-1
5 Presence detector mode
In the presence detector mode, the device detects the presence of a person and will transmit the message parameterised at the beginning of
detection if the brightness value measured is below the twilight value set.
If no more presence is detected now and the preset overall transmit delay (standard transmit delay (10 s) + additional transmit delay) has
elapsed, or if the preset twilight value has been exceeded, for example, by double the value for at least 10 minutes (depending on the software),
the presence detector will transmit the parameterised message at the end of detection.
The differences in the functionality compared with the ceiling-mounted detector mode are in the processing of:
a) the movement signal:
Contrary to the ceiling-mounted detector function, only a succession of movement impulses leads to presence detection.
b) the brightness signal:
The adjustable brightness range to be evaluated as twilight value is wider than for the ceiling-mounted detector mode.
Only after double the value of the preset twilight value (switch-off brightness) is exceeded, the configured message will be transmitted at the end
of the detection event after at least 10 minutes, even though the presence of a person is detected.
This switch-off brightness can be altered in the parameters through a correction value.
c) the combination in the evaluation of the movement and brightness impulses:
The light will be switched on when it is needed, i.e. after the presence of a person has been detected and a brightness value below the preset
twilight value has been measured.
The light will be switched off when it is no longer needed, i.e. nobody is present any longer, or the brightness is sufficient without additional
illumination.
Independent of a movement detection, the light can also be switched on or off if the presence detector is disabled, upon bus voltage recovery, or
by the trigger object (refer to the description of the triggering function).
The brightness limit between range 1 and range 2 is determined by the twilight value which can be parameterised. If the ambient brightness
measured falls below this value and the presence of a person is detected, the presence detector will switch on the artificial light.
Range 2 characterises the brightness in the room the presence detector is to adjust. If the ambient brightness is within this range and the device
detects a new movement, no artificial light will be switched on. The border between ranges 2 and 3 is determined by the twilight value plus the
hysteresis (refer to the "Hysteresis and correction value" description further below). If the ambient brightness measured exceeds this brightness
threshold permanently, the artificial light will be switched off after 10 minutes at the earliest. The time until the switch-off moment can be longer
than 10 minutes if the ambient brightness does not permanently exceed the threshold between ranges 2 and 3, i.e. if the brightness sometimes
decreases or sometimes increases, respectively. This switch-off time serves to “debounce” short-time light reflections and prevents erroneous
switching of the light.
If the twilight value has been parameterised to "brightness-independent", the artificial light will always be switched on without any monitoring of the
ambient brightness once the presence of a person is detected.
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P. 1
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P. 91
Physical SensorsPresence Detector – Standard123Ref.-No.KNX presence detector, standard 3360ETS-product family: Physical sensorsProduct type: MovementThe... -
P. 92
590Description of software application:• Free assignment of the switching, value transmitter and light mood extension functions of the two outputs.•... -
P. 93
Physical SensorsPresence Detector – Universal123Ref.-No.KNX presence detector, universal 3360-1ETS-product family: Physical sensorsProduct type:... -
P. 94
92Presence detector – Universal Ref.-No. 3360-14 Technical data:SupplyingVoltage: 24 V DC (+6 V / –4 V)Power consumption: typical 150 mWConnection:... -
P. 95
Description of software application:Object Name Function Type FlagGeneral4 Movement Communication with main/extension unit 1 Bit C, W, T, (R)*5 Mode Mode... -
P. 96
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P. 97
Hysteresis and correction value:The border between ranges 2 and 3 (switch-off threshold) can be parameterised and adapted to the ambient conditions. If... -
P. 98
96Presence detector – Universal Ref.-No. 3360-15 • Teach-in functionThe teach-in function allows a direct local, object-controlled adaptation... -
P. 99
Physical SensorsBrightness Detector123Ref.-No.KNX brightness sensor with 3 barriersbrightness sensor 2160 REGETS-product family: Physical sensorsProduct... -
P. 100
Description of application 1. Brightness sensor with 3 barriersWith this application the brightness sensor takes over the function of a 3-barrier limit... -
P. 101
ObjectsNumber of addresses: 5Number of assignments: 5Communication objects: 5Object Name Function Type Flag0 Value object Send telegram value 1 Byte R,... -
P. 200
