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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
5.4.6
Local control of room operating mode via the
Temporary Comfort mode input
KNX
R
CO
PPS2
S
Central
Local
1.
3.
S
DI
S
S
DI
3.
Controller
1.
3.
Prio
3.
S
S
The
Temporary Comfort mode
communication object
has an effect similar to that of the /Auto button on the
room unit. However, HVAC control can only be enabled,
i.e. the room operating mode switches to
Comfort
only.
Any KNX/EIB button (pulse switch) can be used for entry:
RXB... Room controller
EIB / KNX button
Temporary ComfortMode
10385Z59en
The following S-mode communication object is used to integrate a bus button:
Temporary Comfort mode (input communication object)
Flags
R W C T U
Type Receive
timeout
States
0 1 1 0 0 1.017
DPT_Trigger
No 1
=
Trigger
0 = Not used
The communication object
Temporary Comfort mode
has two possible states:
State
Description
1 = Trigger
Effective room operating mode
is
Comfort.
0 = Not used
Has no influence on the
Effective room operating mode.
•
The change in the
Effective room operating mode
is event-driven at the moment
when the communication object is received.
•
The
Effective occupancy
or the room unit (both priority 3) can cause the
Effective
room operating mode
to change again
Æ
last command wins.
KNX
R
CO
Effective room operating
mode