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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
8.6.2
Enabling of the function
The function can be centrally disabled or enabled.
Basic setting: the outside air damper is enabled.
The following S-mode communication object is used to integrate the damper enabling:
Enable dampers (Input communication object)
Flags
R W K T U
Type Receive
timeout
States
0 1 1 0 0 1.003
DPT_Enable
yes
0 = Disable = damper closed
1 = Enable = automatic control
The following communication object is used in LTE-mode:
Enable dampers (Input)
Possible partner function blocks
Known partner devices
DisableDamper
Geographical
zone
115 HVACOpt
HVAC-Optimizer
Siemens:
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The use of the outside-air damper can only be implemented in conjunction with the
RXB21.1 controller. In this case, the AC 24 V 3-position damper actuator is connected
to the outputs Y3 and Y4.
8.6.3
Position values for damper actuators
The position of the outside air damper is mapped to the bus.
In S-mode, the following communication object is used for this purpose:
Outside air damper (Output communication object)
Flags
R W K T U
Type Send
heartbeat
Value
1 0 1 1 0 5.001
DPT_scaling
yes
0...100%
0 = 0%
255 = 100%
In LTE mode, the "position" of the outside air damper is transmitted as follows:
Outside air damper (Output )
Possible partner function blocks
Known partner
devices
ActPosSetpFreshAir
Geographical zone
362 ADA
Air Damper Actuator
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If the LTE bus information is not required, it can be disabled (see pages 90 and 143 for
notes on reducing the load on the bus).
KNX
R
CO
KNX
R
CO
Note
