Operating Instructions

Table Of Contents
33/140
Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_04
Building Technologies Room operating modes 21 Sep 2010
5.3 Determine the room operating mode with
DESIGO (S-mode)
In S-mode, the Effective room operating mode of the room controller depends on the
central schedules for
Use and Occupancy and/or on local influences such as window
contacts, presence detectors, or room units.
The illustration below shows how these influences are processed by the room controller
along with their priority:
10385Z55
PPS2
S
Presence detector
Room unit
Occupancy
Building use
Window contact
Central Local
1.
2.
3.
S
DI
S
S
S
DI
Effective
room op.
mode
S
Effective
occupancy
3.
Controller
Prio
Temporary
Comfort
mode
3.
S
The effects of Priority 1 and Priority 2 are similar in nature to states, which apply
continuously
The influence of priority 3 is treated as event.
The key point in time is the moment at which the state changes (edge).
If another source of third priority later changes the state, the
last known change is
valid
.
STOP
Note!