Siemens Desigo RXB Technical Manual page 153

Function
Internal correction by
controller
Note
K N X
CO
R
Siemens
Building Technologies
• Comfort:
– The Comfort setpoints for heating and cooling are shifted in parallel
– 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
– The cooling setpoint cannot be lowered following central shift
– The heating setpoint cannot be increased following central shift
• Economy :
– The cooling setpoint cannot be lowered following central shift
– The heating setpoint cannot be increased following central shift
– The value is shifted together with the Precomfort value
• Protection :
– Protection values are absolute
– A minimum spacing between Comfort heating and Comfort cooling of 0.5 K is
maintained .
F
Setpoints Sp [°C]
Protection cooling
Economy cooling
Precomfort cooling
Comfort cooling
Comfort heating
Precomfort heating
Economy heating
Protection heating
Upon a change from Comfort and Precomfort to Economy or Protection , the setpoint
shift can be reset (see page 110).
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
R W C T U
1 0 1 1 0 9.002
DPT_Value_Tempd
RXB (KNX) Applications library
Setpoint calculation
E .
C
F
0.5 K
D
-
Local setpoint shift
Send heartbeat
Yes
CLC and RAD description of functions for CC-02 CM110384en_03
A .
B .
C .
C .
.
C
.
C
D .
E
D
F 0.5 K
B
A
C
0 +
Value
Floating point (K)
28 Feb 2009
Offset [K]
73/140