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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12
CM110385en_05
Building Technologies
Room unit
28 Feb 2009
The measured value of the built-in temperature sensor can be recalibrated to
compensate for radiation from a cold wall, for example.
Parameter
Basic setting
Range
Resolution
HandyTool
Measured value correction
0 K
– 3 ... 3 K
0,1 K
*101
This correction is also valid for a sensor that is connected to the analog input B1 (but
not for a bus sensor).
The maximum setpoint adjustment range is as follows (see also page 74).
Parameter
Basic setting
Range
Resolution
HandyTool
Setpoint adjustment range
± 3 K
± 0 ... 10 K
1 K
*103
A management station can use the communication object
Enable Comfort
(see
page 59) to prevent the room operating mode from being higher than
Economy
(energy
conservation). Local comfort mode can be ignored by setting the following parameter:
Parameter
Description
HandyTool
Local Comfort mode
switch
from
Economy
to
Comfort
or
Precomfort
mode
*105
Enabled (basic setting).
This means that
Comfort
or
Precomfort
may be
disabled by the input
Local comfort mode.
1
Disabled (Ignore
Local comfort mode
).
Comfort
or
Precomfort
may NOT be disabled by the
input
Local comfort mode.
2
You can choose if the room unit is equipped with an LCD display. If so, the parameters
hereafter can also be set. The HandyTool has a fixed setting "With LCD".
Parameter
Description
Basic setting
Room unit
Without LCD / With LCD
Without LCD
The display of the heating and cooling symbols can be enabled or disabled. Note that
this applies only to room units with an LCD display.
Symbols:
Cooling sequence active
Heating sequence active
Parameter
Description
Basic setting
Heating/cooling symbol
display
Heating and cooling symbols are
displayed
Enabled
The room temperature can be displayed either in Celsius (°C) or Fahrenheit (°F). Note
that this applies only to room units with an LCD display.
Parameter
Value
HandyTool
Temperature unit
(only room units with LCD)
*108
Celsius (°C) (basic setting)
1
Fahrenheit (°F)
0
Sensor correction
Note
Setpoint adjustment
range
Local comfort mode
(in LTE mode only)
Room unit
Displaying heating and
cooling symbols
(ETS only)
Selecting the
temperature unit
