Siemens RDG200KN, Basic Documentation, Page: 25 / 150

Functions
Operating modes
4
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Priority Description Remark
④ Presence detector ● Standard presence mode: If a room is
occupied, the operating mode changes to
Comfort. This overrides the operating mode on
the thermostat. Unoccupied rooms set back
the thermostat to the previous operating mode.
● Hotel presence mode: If a room is unoccupied,
the operating mode changes to Economy. This
overrides the operating mode on the
thermostat. The buttons are locked and symbol
displays. Occupied rooms set back the
thermostat to the previous operating mode.
④ Presence detector
via bus
"Presence detector" sent via bus has the same
effect as the local presence detector.
Note:
Only one input source must be used, either local
input X1/X2/U1or KNX bus.
④ Operating mode
button
Users can change the operating mode using the
operating mode button.
④ Operating mode via
bus
The operating mode can be changed via bus.
④ Temporary
extended Comfort
mode via operating
mode button
The operating mode can be temporarily changed
from Economy to Comfort by pressing the
operating mode button, if...
● Economy was sent via bus
● For an extended Comfort period>0 (P102)
Note:
The last option selected is used, either locally or
using bus.
④
Time schedule via
bus
The operating mode sent via bus can be
overridden by all other interventions.
Exception: Protection mode has priority 2.
Note:
If the time schedule switches from Comfort to
Economy, but the presence detector is still active
(room occupied), the thermostat continues to work
in Comfort mode until the room is unoccupied.
If a time schedule via bus is present, e.g., from a central control unit, Auto mode
is active. The thermostat automatically changes to Comfort, Economy or
Protection according to the time schedule via bus.
The display shows the Auto mode symbol along with the symbol for the actual
room operating mode (Comfort or Economy ).
You can change the operating mode by pressing the operating mode button.
Automatic fan is the default fan speed in Auto mode.
Each time the time schedule sends a new operating mode (switching event), the
operating mode of the thermostat is set back to Auto mode. This ensures that the
room temperature is maintained according to the time schedule.
Auto mode with time
schedule via bus
Behavior when bus sends
new operating mode