Operating Instructions

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Siemens RXB (KNX) application library RXB Description of functions for FC-10, FC-11, FC-12, FC-13 CM110385en_08
Building Technologies Room operating modes 2013-06-17
The following S-mode communication object is applicable when using the time
scheduler from a building automation and control system:
Time schedule Use (Input communication object)
Flags
Type Receive timeout States
R
W
C
T
U
0 1 1 0 0 20.002
DPT_BuildingMode
Yes
0 = In use
1 = Not in use
2 = Protection
5.3.3 Central and local control of room operating mode
based on occupancy
S
Central Local
1.
2.
3.
S
DI
S
S
S
DI
S
3.
Controller
Prio
PPS2
3.
S
The effective occupancy is determined by the
Occupancy time schedule and the presence detector.
It controls the room operating mode of a room
controller throughout the period when the building is in
use.
The central time schedule transmits the anticipated occupancy of a room or group of
rooms. It controls the room operating mode of a room controller throughout the period
when the building is in use. Outside the building-in-use period, the time schedule is
disabled.
The time schedule can be used, for example, by a building tenant to specify the
occupancy times applicable to that tenant’s own rooms.
The Occupancy scheduler has three possible states:
State Description
Occupied • Occupants expected
•
The room controller switches to Comfort
Standby • Occupancy is probable; the room must be ready for use shortly
(Comfort temperature)
•
The room controller switches to Precomfort
Unoccupied • No occupants expected
•
The room controller switches to Economy
A presence detector detects the presence of people in a room.
It controls the room operating mode of a room controller throughout the period when
the building is in use. Outside the building-in-use period, it is disabled.
CO
Occupancy
time schedule
Presence detector