Siemens Desigo RXB Technical Manual page 117

Effective occupancy
Effective room operating
mode
K N X
CO
R
Siemens
Building Technologies
The presence detector has two states:
State Description
• Room is occupied.
Occupied
• Room controller switches to Comfort.
• Room is not occupied.
Unoccupied
• 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.
Rule: Occupied takes precedence over unoccupied. If either the schedule or the
presence detector transmits occupied , the room is occupied.
Presence detector
No presence detector
Unoccupied
(no people
present).
Occupied
(people present).
• The Effective room operating mode can be changed by the Effective occupancy only
during the building-in-use period (defined by the Use schedule).
• The change in the Effective room operating mode is event-driven at exactly the time
when 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 used for schedule usage 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) Applications library
Room operating modes
Occupancy schedule
No schedule.
Occupied.
Standby.
Unoccupied.
No schedule.
Occupied.
Standby.
Unoccupied.
No schedule.
Occupied.
Standby.
Unoccupied.
last command wins.
Effective room operating
mode
Comfort.
Precomfort.
Economy.
Receive timeout
Yes
CLC and RAD description of functions for CC-02 CM110384en_03
Effective
occupancy
Occupied.
Occupied.
Standby.
Unoccupied.
Unoccupied.
Occupied.
Standby.
Unoccupied.
Occupied.
Occupied.
Occupied.
Occupied.
States
0 = Occupied
1 = Standby
2 = Unoccupied
37/140
28 Feb 2009