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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12
CM110385en_05
Building Technologies
Temperature measurement
28 Feb 2009
The situation is slightly different in LTE mode: Here, each signal has its own specific
name, and the room temperature and return air temperature therefore each have their
own communication object.
Room temperature (Input)
Possible partner function blocks
Known partner devices
TempRoom
Geographical zone
321 RTS
Room Temperature Sensor
Siemens:
Synco RMH760
RMU710 / 20 / 30
QAW740
Return air temperature (Input)
Possible partner function blocks
Known partner devices
TempReturnAir
Geographical zone
323 RNATS
Return Air Temperature Sensor
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7.2
Outside air temperature via Konnex bus
(FNC10, FNC12, FNC18)
For the FNC10, FNC12, and FNC18 applications, the outside air temperature must be
available as a bus information. It can be read via the next S-mode communication
object:
Outside air temperature input (Input communication object)
Flags
R W C T U
Type Receive
timeout
Value
0 1 1 1 1 9.001
DPT_Value_Temp
yes
Floating point (°C)
Subject to the appropriate configuration and integration, the outside air temperature is
read by the controller immediately after a reset.
In LTE mode, the outside air temperature is sent in a special zone.
Outside air temperature input (Input)
Possible partner function blocks
Known partner devices
TempOutside
Outside air
temperature zone
320 OTS
Room Temperature Sensor
Siemens:
Synco RMH760
RMU710 / 20 / 30
RMB795 / RMS705
KNX
R
CO