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Siemens
RXB (KNX) Applications library
CLC and RAD description of functions for CC-02 CM110384en_03
Building Technologies
Room operating modes
28 Feb 2009
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:
103
85Z
5
5
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!