Assortment / System Description

Lighting applications
Constant lighting control with multiple lighting groups in the room
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The DXR2 can control KNX PL-Link push buttons or room operator units with
integrated LED state displays. The following state displays can be configured:
● Always off:
State LEDs are always switched off on push buttons/room operator unit.
● Lighting on:
The state LEDs for the push buttons (switch off/darker) are switched on if
the lights are switched on.
● Lighting off:
The state LEDs for the push buttons (switch on/brighter) are switched on if
the lights are switched off.
● Manual operation lock:
All state LEDs are switched on if the push buttons/room operator unit is
locked for manual operation.
● Lighting on, or manual operation lock:
The state LEDs of the push buttons (switch off/darker) are switched on if
the lights are switched on and all state LEDs are switched on if manual
operation is locked.
● Lighting off, or manual operation lock:
The state LEDs of the push buttons (switch on/brighter) are switched on if
the lights are switched off and all state LEDs are switched on if manual
operation is locked.
Description Name Default value
Room operator unit, LED indication RuLED Lighting off, or
manual operation
lock
22.6 Constant lighting control with multiple lighting
groups in the room
The constant lighting control application ensures seamless control of artificial
light based on room brightness. Brightness of additional lighting groups is
individually calculated using the calculated brightness of the controlled main
lighting group and illumination fall-up characteristics, considered from the
window to inside the room. Each lighting group is individually controlled in the
room which additionally lowers energy demand for lighting.
A brightness sensor mounted on the ceiling in a room acquires the brightness in
the room as a sum total of artificial light and daylight. The previously defined
brightness value of the lighting group is maintained at a constant level. Artificial
light is switched off if not needed.
When adding presence detectors, lighting is controlled based on daylight and
occupancy.
Control of state LED