MDT Technologies KNX Glass Push Button II Lite Technical Manual page 49

Technical Manual
Glass Push Button II Lite [BE-GTLxxx.x1]
ETS Text
Threshold for
minimum brightness
(level 1)
Threshold for
maximum brightness
(level 5)
Table 39: Settings – LED basic setting
LED colour on button activation
This parameter specifies the colour of all status LEDs when a button is pressed if they are assigned a
double function by the setting "LED reacts to external/internal object and button press". In this case, the
settings in the menu items LED 1 - 4 refer to the control via the object.
Global brightness for LEDs
The brightness of the LEDs can be set either statically or dynamically. If the brightness is to be adjusted
dynamically, it is controlled by a lux or percentage value, depending on how the system is configured. The
brightness is set in 5 brightness levels. If a lux value is used, the brightness thresholds are calculated
using the minimum and maximum brightness values.
If a percent value is used, the thresholds are fixed as follows:
Level Lower Percent value
1 0 %
2 21 %
3 41 %
4 61 %
5 81 %
Table 40: LED brightness thresholds if controlled via percent value
If no valid object value is available, the "Global brightness for "Day" is set to "level 3" and the "Global
brightness for "Night" to "level 1".
Lock object for LEDs
Unlike the lock objects for the buttons, there is only one lock object for the LEDs, which affects all LEDs. If
the LED lock object is controlled with a logical "1", all LEDs are locked and can therefore no longer be
controlled. LEDs that were previously controlled are switched-off. With a logical "0", the lock is removed
and control is possible again. Previous switching states are restored.
Note:
The cleaning and programming LED function are excluded from the lock function.
Synchronization object for flashing LEDs
This parameter can be used to synchronise the flashing of the status LEDs on different push-buttons. One
push-button must be configured as "active as master" and all other buttons as "active as slave". The
"master" sends a synchronisation signal at approx. 10-minute intervals, which the slave LEDs follow. This
ensures that every button with a status LED flashes at the same time.
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Dynamic range
[Default value]
0 ... 1000 Lux
[50 Lux]
0 ... 1000 Lux
[500 Lux]
Upper Percent value
20 %
40 %
60 %
80 %
100 %
Comment
Setting from which value the brightness
level 1/5 is active.
Only if "Datapoint for dynamic
brightness" → "Ambient Brightness".
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