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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12
CM110385en_05
Building Technologies
Room operating modes
28 Feb 2009
The state of the room controller (result of the logic OR operation) is mapped to the building
automation and control system via the following S-mode output communication object:
Window contact output (Output communication object)
Flags
R W C T U
Type
Send heartbeat
States
1 0 1 1 0 1.019
DPT_WindowDoor
Yes
0 = Closed
1 = Open
Master/slave applications
Bindings are required in S-mode so that the status of the window contact connected to
the slave can be communicated to the master.
5.4.2
Central control of room operating mode via the
Room operating mode
time schedule
PPS2
S
Central
Local
1.
3.
S
DI
S
S
DI
3.
Controller
1.
Prio
3.
S
S
3.
The room operating mode can be specified directly with
the communication object
Room operating mode
.
The following S-mode communication object is used to control the
Room operating
mode
from a building automation and control system:
Time schedule Room operating mode (Input communication
object)
Flags
R
W
C
T
U
Type Receive
timeout
States
0 1 1 0 0 20.102
DPT_HVACMode
Yes
1 = Comfort
2 = Precomfort
3 = Economy
4 = Protection
Room operating mode
time schedule
Effective room operating mode
of room controller
Comfort
Comfort
Precomfort
Precomfort
Economy
Economy
Protection mode
Protection mode
•
For the room controller, the room operating modes
Comfort, Precomfort
and
Economy
are Priority 3 and can therefore later be changed by a presence detector or
room unit.
•
The room operating mode
Protection
has first priority, and the presence detector and
room units are therefore disabled.
KNX
R
CO
Note
Priorities