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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
In LTE mode, the room/return air temperature from directly connected sensors is
mapped as follows:
Room temperature output (Output)
Possible partner function
blocks
Known partner devices
TempRoom
Geographical zone
390 UHD
UserHVACDisplay
Siemens:
Synco RMH760 / RMB795
RMU710 / 20 / 30
Return air temperature output (Output)
Possible partner function
blocks
Known partner devices
TempReturnAir
Geographical zone
--- ---
7.1.6
Temperature sensor input from Konnex bus
The signal from the sensor connected to the bus takes priority. The signal is not
averaged and no sensor correction (page 140) is done.
Since KNX temperature sensors are available from a variety of manufacturers, the
name of the S-mode output communication object varies accordingly.
RaumTemperatur
EffektiveRaumTemperatur
10385Z16en
Room temperaure Input
Effective Room temperature
Effective Room Temperature
... or ...
Return air temperature Input
KNX temperatur sensor
RXB... room controller
If the room temperature/return temperature is available as information on the bus, it can
be read with one of the following S-mode communication objects:
Room temperature input (Input communication object)
Return 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 room temperature/return
air temperature is read by the controller immediately after a reset.
For a Konnex sensor the send heartbeat must be set to "Cyclical sending enabled"
KNX
R
CO
STOP
Note!
