Siemens Desigo RXB, Technical Manual, Page: 148 / 476

68/140
Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_03
Building Technologies Setpoint calculation 28 Feb 2009
6.1.1 Bus output for current setpoints
The present setpoints can be integrated in a building automation and control system
individually or as triplets via the following S-mode communication objects:
Present Eco cooling setp (output communication object)
Present Precomf cool setp (output communication object)
Present Comf cooling setp (output communication object)
Present Comf heating setp (output communication object)
Present Precomf heat setp (output communication object)
Present Eco heat setp (output communication object)
Flags
R W C T U
Type Send
heartbeat
Values
1 0 1 1 0 9.001
DPT_Value_Temp
Yes
Floating Point (°C)
Present setpoints heating (output communication object)
Present setpoints cooling (output communication object)
Flags
R W C T U Type Send
heartbeat
Values
1 0 1 1 0 222.100
DPT_TempRoomSetpSetF16[3]
Yes 3 floating point values
- Comfort (°C)
- Precomfort (°C)
- Economy (°C)
6.1.2 Bus output effective setoints
Upon integration in a building automation and control system, the
effective setpoints
are mapped by the controller to the following communication objects based on the
Effective room operating mode :
Effective setpoint (output communication object)
Effective setpoint heating (output communication object)
Effective setpoint cooling (output communication object)
Flags
R W C T U Type Send heartbeat Values
1 0 1 1 0 9.001
DPT_Value_Temp
Yes Floating point (°C)
If the room temperature is in the deadband, the
Effective setpoint is transmitted either
as heating or cooling setpoint, depending on whether the controller last was cooling or
heating.
6.1.3 Bus outputs LTE mode
In LTE mode, the current and effective setpoints are not transmitted to the building
automation and control system.
KNX
R
CO
Note