Operating Instructions

Table Of Contents
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Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_04
Building Technologies Room operating modes 21 Sep 2010
5.3.1 Local control of room operating mode via
a window contact
S
Central Local
1.
2.
3.
S
DI
S
S
S
DI
S
3.
Controller
Prio
PPS2
3.
S
If a window is opened, the room controller always
switches to room operating mode
Protection, i.e. the
heating or cooling output is reduced to a minimum. If a
window is opened outside the building-in-use period, it
is possible to, e.g., trigger an additional alarm in the
building automation and control system.
The table below shows the
Effective room operating mode as a function of the window
contact
input.
Window contact
status
Effective room operating mode
Window closed No effect.
Lower-priority inputs determine the operating mode.
Window open Protection.
The window contact is connected directly to a digital input on the room controller (see
page 102). Alternatively an EIB/KNX window contact (connected to the bus) may be
used. The application evalua
tes both items of information (logic OR operation).
Since EIB/KNX window contacts are available from a variety of manufacturers, the
name of the S-mode output communication object varies accordingly.
Raum-Controller RXB...
Window contact input
EIB / KNX window contact
10385Z10en
Window contact output
OR
Window contact on DI
The following S-mode communication object is used to integrate an EIB/KNX window
contact:
Window contact input (Input communication object)
Flags
R W C T U
Type Receive timeout
States
0 1 1 0 0 1.019
DPT_WindowDoor
No 0 = Closed
1 = Open
Effective room operating
mode
Window contact
KNX
R
CO