Assortment / System Description

Lighting applications
Operating strategy for light
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The reduced control for the corresponding operating mode refers to dimmable
lighting in the room. Moreover, the reduction to light output does not include
manual control of lighting using operator buttons in the room. A room occupant
is always able to control the full illuminance.
Four different room operating modes are available that can execute control, via
central functions, management stations, schedulers, presence buttons in the
room or other BACnet participants in the system.
Comfort: The operating mode Comfort refers to a room currently in use
(occupied).
Pre-Comfort: The Pre-Comfort operating mode places control for an
unoccupied room in a state that can be quickly reset to the desired setpoints
for an occupied room.
Economy: The Economy operating mode controls rooms that remain
unoccupied for an extended period, for example, at night or over the weekend.
Protection: The building is unoccupied over longer periods in this operating
mode (e.g. no renters, factory holidays).
The room occupancy has the following commands available to manually
operate lighting:
● Switch on
● Switch off
● Dimming up
● Dimming down
The presence button is used to establish occupancy in a room. It is used in
place of a presence detector. Establishing occupancy with a presence button is
not automatic, but rather the result of a user action. When entering the room,
the user switches to occupied using a presence button. When exiting the room,
the user switches to "absent" using the presence button.
Manual operation by the user can override any existing automation in the room.
Any manual operation must be released to return to automatic mode.
DXR2 applications have the following methods to this end:
● A central scheduler program
● Presence detector detecting non-occupancy
● Central commands from the management station
● By manual operation (first-time switch on or appropriately configured
button)
Description Name Default value
Enable brightness control by switch-on command
0:No
1:Yes
EnBrgtCtlSwiOn 1:Yes
Room operating modes
Manual operation using
the presence button
Manual operation
overrides automatic