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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
5.4
Determine the room operating mode
with third-party products (S-mode)
In S-mode, the
Effective room operating mode
of the room controller depends on the
central
Room operating mode
schedule and/or on local influences such as window
contact, presence detector, or room unit.
The illustration below shows how these influences are processed by the room controller
along with their priority:
PPS2
S
Central
Local
1.
3.
S
DI
S
S
DI
Effective
room op. mode
3.
Controller
1.
3.
Room operating mode
Pr
o
te
ct
ion
mo
de
Window contact
Presence detector
Room unit
Prio
10385Z
56
3.
Temporary
Comfort mode
S
S
Effective
occupancy
•
The influence of
priorities 1 and 2
is equivalent to permanent
states
.
•
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
Important!