MDT Technologies BE-TA5502.01 Technical Manual page 18

Technical Manual Taster BE-TA55
4.4.1 Dimming
The dual surface dimming function (channels grouped) is for controlling dimming actuators by start‐
stop dimming commands.
The following parameters are visible, when a pair of channels is chosen as dimming‐function:
Illustration 9: Parameter dual surface dimming
Number Name
0 Dimming on/off
1 Dimming
Chart 10: Communication objects dual surface dimming
When a pair of channels is parameterized as dimming function, two objects are shown. One object
reacts to a short keystroke, the switching object "Dimming on/off", and the other object reacts to a
long keystroke, the dimming object "dimming".
It is possible to parameterize this function as brighter/darker or as darker/brighter. The first function
belongs always to the first button. If you switch this parameter, the function will be switched
automatically.
By choosing the dimming function (channel A/B) as brighter/darker, the function reacts in this way:
A short keystroke at button A switches the lights on. The lights are switched off by a short keystroke
at button B. A long keystroke dims the lights step by step until releasing the long keystroke. The lights
are dimmed brighter at button A and darker at button B. The push button starts always with the last
brightness level, before switching off.
The step size is set fixed to 100% at the dual surface dimming. It is a start‐stop dimming. that means
the lights are dimmed as long as you hold the button. After releasing the button a stop value is sent,
which stops the dimming process. So you can dim the lights with only one keystroke from 0% to
100% or from 100% to 0%, by pushing the button long enough.
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Length Usage
1 Bit Switching function of the dimming process;
action for a short keystroke
4 Bit Dimming function; action for a long keystroke