Local Control Of Room Operating Mode Via A Window Contact - Siemens Desigo RXB Technical Manual

Effective
room operating mode
Window contact
K N X
R
36/166
Siemens
Building Technologies
5.3.1 Local control of room operating mode via
a window contact
Central Local
Controller
S
DI
S
S
S
DI
PPS2
S
The table below shows the effective room operating mode as a function of the Window
contact input.
Status of window
contact
Window closed
Window open
The window contact is connected directly to a digital input on the room controller (see
page 126). 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
CO
contact:
Window contact input (Input communication object)
Flags Type
R W C T U
0 1 1 0 0 1.019
DPT_WindowDoor
RXB (KNX) application library
Room operating modes
Whenever a window is opened, the room controller
Prio
1.
always switches to the Protection room operating
S
mode, i.e. the heating or cooling output is reduced to a
2.
minimum. If a window is opened outside the "building-
3.
in-use" period it is also possible, for example, to
S
arrange for this to trip an alarm in the building
automation and control system.
3.
3.
Effective room operating mode
No effect.
Operating mode is determined by inputs with a lower priority
Protection mode
Window contact input
Receive timeout
No
FNC Description of functions for FC-10, FC-11, FC-12
Room controller RXB...
OR
Window contact output
10385Z10en
States
0 = Closed
1 = Open
CM110385en_05
28 Feb 2009