Art. No. DS 4092 TS
4.2.4.4.2 Extension function Dimming
For each input whose function is set to "Dimming", the ETS indicates a 1-bit "Switching" and a
4-bit "Dimming" object. In general, the device transmits a switching telegram on a short time
input signal (triggered by the rising edge of a closed contact) and a dimming telegram on a long
signal. In the standard configuration, the device transmits a telegram for stopping the dimming
action after a long signal.
The length of time the input signal (closed pushbutton or switch) must last until a long actuation
is detected can be set using the parameter "Time between switching and dimming" on the
parameter page "Ix - General" (x = 1, 2, 3).
Operating principle
The "Operation" parameter specifies the operating principle. In the presetting of the dimming
function, two-surface operation is specified here. This means that the input transmits a telegram
for switching on after a short signal length and a telegram for increasing the brightness after a
long signal length ("Brighter"). Alternatively, the device can transmit a telegram for switching off
after a short signal length and a telegram for reducing the brightness after a long signal length
("Darker").
With a single-surface dimming function, the input transmits switch-on and switch-off telegrams
("TOGGLE") in an alternating pattern for each short signal. After long signals, the device
transmits "brighter" and "darker" telegrams in an alternating pattern.
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With single-surface dimming, the following should be observed: if a dimming actuator is to
be controlled from several locations, a faultless single-surface operation requires that the
addressed actuator reports its switching state back to the 1-bit object of the input and that
the 4-bit objects of all the sensors are interlinked. The sensor device would otherwise not
be able to detect that the actuator has been addressed from another sensor, in which case
it would have to be actuated twice during the next use in order to produce the desired
reaction.
The additional input parameters on the parameter page "Ix - General" can be used to specify in
which step width brighter or darker dimming take place, whether a stop telegram is transmitted
on a falling edge or whether the dimming telegram is to be repeated cyclically.
Response to bus voltage return
After a device reset (bus voltage return or ETS programming operation), the communication
object "Switching" of the input can be initialised. For this, the "Behaviour on bus voltage return"
parameter should be configured to the required reaction. In the settings "send ON telegram" or
"send OFF telegram" telegrams are transmitted actively to the bus.
If, in the ETS, a delay is set for the extension inputs after bus voltage return, the device only
transmits the telegrams when the delay has elapsed.
After a device reset, the "Dimming" object is always initialised with "0".
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Software "Rotary sensor with extensions 10FE1x"
Functional description
