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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12 CM110385en_05
Building Technologies
Control sequences
28 Feb 2009
HandyTool
See Parameters in the last column of the table below
Short name
Range
Basic setting
HandyTool
Bus valve heating output
0 = disabled / Off
1 = enabled / On
disabled (0)
*085
Bus valve cooling output
0 = disabled / Off
1 = enabled / On
disabled (0)
*087
8.1.6
Valve exercising feature
To prevent valves from seizing after long periods of inactivity (e.g. cooling valves in
winter) the valves are operated from time to time. The valve actuators are operated in
such a way as to waste as little heating or cooling energy as possible.
The valve exercise function is triggered if the valve has been closed for ca. 91 hours
without interruption.
8.1.7
Override valve actuators
For test purposes, the valve actuators can each be overridden individually via the
following communication objects:
Heating valve override (Input communication object)
Cooling valve override (Input communication object)
Flags
R W C T U
Type
Receive timeout
Value
0 1 1 0 0 8.010
DPT_Percent_V16
no
0...100%
0 = 0%
+100 = +100%
+32767 = invalid
Before the valve actuators can be overridden, the “Test” mode must be activated via
the communication object
Application mode
(see page 128).
The valve is operated in accordance with the settings shown below:
Heating
value
Cooling
value
Control
Invalid Invalid -----
Valid
Invalid Heating
Invalid
Valid
Cooling
Valid
Valid
Thermal actuators:
Heating and cooling alternately, with the
Heating
value
Motorized actuators:
Heating and cooling valve driven to the
Heating
position
KNX
R
CO
Note
