Siemens Desigo RXB Technical Manual page 275

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Effective occupancy
Effective
room operating mode
K N X
CO
R
Siemens
Building Technologies
The presence detector has two possible states:
State
Description
• The room is occupied
Occupied
• The room controller switches to Comfort
• The room is not occupied
Unoccupied
• The room controller switches to Economy or Precomfort
The table below shows Effective occupancy as a function of the Occupancy time
schedule and the presence detector.
Principle: "Occupied" takes precedence over "Unoccupied". If either the time schedule
or the presence detector transmits Occupied then the room is Occupied.
Presence detector
No presence detector
Unoccupied
(No people
present)
Occupied
(People
present)
• The e ffective room operating mode can be changed by the e ffective occupancy only
during the building-in-use period (defined by the Use time schedule)
• The change in the effective room operating mode is event-driven, the key factor
being the moment at which the effective occupancy changes.
• The room unit or Temporary Comfort mode (both Priority 3) can cause the effective
room operating mode to change again
Effective occupancy
Occupied
Standby
Unoccupied
Key: "
Occupied " means: "Changes to Occupied "
The following S-mode communication object is applicable when using the time
scheduler from a building automation and control system:
Time scheduler Occupancy (Input communication object)
Flags
Type
R W C T U
0 1 1 0 0 20.003
DPT_OccMode
RXB (KNX) application library
Room operating modes
Occupancy time schedule
No time schedule
Occupied
Standby
Unoccupied
No time schedule
Occupied
Standby
Unoccupied
No time schedule
Occupied
Standby
Unoccupied
the last command always applies.
Effective room operating mode
Comfort
Precomfort
Economy
Receive timeout
Yes
FNC Description of functions for FC-10, FC-11, FC-12
Effective occupancy
Occupied
Occupied
Standby
Unoccupied
Unoccupied
Occupied
Standby
Unoccupied
Occupied
Occupied
Occupied
Occupied
States
0 = Occupied
1 = Standby
2 = Unoccupied
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CM110385en_05
28 Feb 2009

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