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 table below shows the effect of the /Auto button on the effective room operating
mode of the room controller.
Existing effective
room op. mode
Display on
room unit
Manual operation of
the / Auto button
New rffective room
operating mode
Comfort Auto 
Precomfort
if effective occupancy
= Occupied or Standby
Economy
if effective occupancy
= Unoccupied
Precomfort

Auto
Comfort
Economy  Auto Comfort during Temporary
Comfort period
1)
Protection mode

Auto
Protection, no change
Key: “ Auto" means: "changes to Auto"
1) Comfort mode is operative for the pre-defined Temporary Comfort period (see page
143). The room controller then reverts to Economy.
5.3.6 Local control of room operating mode via the
Temporary Comfort mode input
CO
S
Central Local
1.
2.
3.
S
DI
S
S
S
DI
S
3.
Controller
Prio
PPS2
3.
S
The communication object Temporary Comfort mode
has an effect similar to that of the
/Auto button on the
room unit. However, the HVAC control system can only
be "switched on", i.e. the room operating mode
switches to Comfort only.
Any KNX/EIB switch (pulse switch) can be used for the input:
RXB... room controller
EIB / KNX button
Temporary Comfort mode
10385Z59de
The following S-mode communication object is used to integrate a bus switch:
Temporary comfort mode (Input communication object)
Flags
Type
Receive timeout
States
R
W
C
T
U
0 1 1 0 0 1.017
DPT_Trigger
No
1 = Trigger
0 = Not used
CO