Effective room operating
K N X
Local control of room operating mode via
a window contact
The table below shows the Effective room operating mode as a function of the window
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 evaluates 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.
Window contact on DI
EIB / KNX window contact
The following S-mode communication object is used to integrate an EIB/KNX window
Window contact input (Input communication object)
R W C T U
0 1 1 0 0 1.019
RXB (KNX) Applications library
Room operating modes
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.
Effective room operating mode
Lower-priority inputs determine the operating mode.
Window contact input
CLC and RAD description of functions for CC-02 CM110384en_03
Window contact output
0 = Closed
1 = Open
28 Feb 2009