Siemens RDG20 KN Series Basic Documentation page 31

Auto mode with time
schedule via bus
(RDG2..KN)
A6V11545892_en--_e
Priority Description
④
Presence detector
④
Presence detector
via bus (RDG2..KN)
④ Operating mode
button
④ Operating mode via
bus (RDG2..KN)
④
Temporary
extended Comfort
mode via operating
mode button
④ Local time schedule When P005 = On (Enabled), the local time
④
Time schedule via
bus (RDG2..KN)
Recommended for commercial building applications, e.g. for
offices, shops, etc.
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.
Remark
●
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.
"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.
Users can change the operating mode using the
operating mode button.
The operating mode can be changed via bus.
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.
schedule is active. The thermostat does not react
to the operating mode: time switch command from
the bus. The operating mode set via local time
schedule can be overridden by all other
interventions.
When P005 = Off (Disabled), the bus schedule is
active. 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.
4
Functions
Operating modes
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