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Siemens
RXB (KNX) Applications library
CLC and RAD description of functions for CC-02 CM110384en_03
Building Technologies
Control sequences
28 Feb 2009
8.3.2
Override the valve actuator
For test purposes, the following communication objects can be used to override chilled
ceiling and radiator valve actuators.
Heating surface 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
Cooling surface 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, Test mode must be activated via the
communication object
Application mode
(see page 105).
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