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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
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
with
Temporary Comfort mode
only during the building-in-use period (
Use
schedule).
•
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.
The table below shows the effect of the
Temporary Comfort mode
on the
Effective
room operating mode
of the room controller.
Existing Effective
room op. mode
Temporary Comfort
mode
New
Effective room operating
mode
Comfort
Æ
0 = Not used
No effect.
Precomfort
Æ
1 = Trigger
Comfort.
Economy
Æ
1 = Trigger
Comfort
for Temporary Comfort
period
1)
.
Protection
Æ
1 = Trigger
Protection, unchanged.
Key:
Æ
1 means: "changes to 1 ".
1)
Comfort
mode is active for the predefined
Temporary Comfort
period (see page
103). The room controller then returns to
Economy.
5.3.7
Effective room operating mode
KNX
R
CO
S
Central
Local
1.
2.
3.
S
DI
S
S
S
DI
S
3.
Controller
Prio
PPS2
3.
S
The resultant
Effective room operating mode
is
available to the building automation and control
system in the following communication objects.
These are for display only and cannot be influenced.
Effective room operating mode (output communication object)
Flags
R W C T U
Type Send
heartbeat
States
1 0 1 1 0 20.102
DPT_HVACMode
Yes
1 = Comfort
2 = Precomfort
3 = Economy
4 = Protection
Effective room operating
mode