Operating Instructions

Table Of Contents
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Siemens RXB (KNX) application library RXB Description of functions for FC-10, FC-11, FC-12, FC-13 CM110385en_08
Building Technologies Setpoint calculation 2013-06-17
Comfort:
The Comfort setpoints for heating and cooling are shifted in parallel
A
.
The original spacing heating cooling is maintained.
The room controller corrects the setpoints as follows following a local shift:
Precomfort::
The values are shifted in parallel to the Comfort values
B
.
The cooling setpoint cannot be lowered following central shift
C
.
The heating setpoint cannot be increased following central shift
C
.
Economy:
The cooling setpoint cannot be lowered following central shift
C
.
The heating setpoint cannot be increased following central shift
C
.
The value is shifted together with the Precomfort value
D
.
Protection:
Protection values are absolute
E
.
A minimum spacing between Comfort heating and Comfort cooling of 0.5 K is
maintained
F
.
Setpoints
Protection cooling
Economy cooling
Precomfort cooling
Comfort cooling
Comfort heating
Precomfort heating
Economy heating
Protection heating
10385D108
Sp [°C]
Offset [K]
A
0 +
-
0.5 K
0.5 K
B
C
D
F
E
C
D
F
Local setpoint shift
Upon a change from Comfort and Precomfort to Economy or Protection, the setpoint
shift can be reset (see page 152).
The Effective setpoint offset (last value of local shift via PPS2 / bus) is available in the
following S-mode communication object:
Effective setpoint offset (output communication object)
Flags
Type Send heartbeat Value
R
W
C
T
U
1 0 1 1 0 9.002
DPT_Value_Tempd
Yes Floating point (K)
Function
Internal correction by
controller
Note
CO