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ABB i-bus
KNX
Start-up
3.3.3.2
Communication objects Fan One-level
No.
10
50
Not assigned
11
51
The communication object is enabled if the parameter Fan type in the A: Fan or CDE: Fan parameter window is set to One-
level.
The fan can be switched on or off with this 1 bit communication object.
Limitations through forced operation or one of the four limitations 1...4 are retained. Automatic operation is disabled. Commu-
nication object Automatic ON/OFF reactivates automatic operation.
If several ON telegrams with the value 1 are received, the last value received will be the one used to control the fan. An OFF
command switches the fan off.
Telegram value:
12...14
52...54
Not assigned
15
55
The communication object is enabled if the parameter Enable communication object "Status fan On/Off" 1 bit in the - Status
messages parameter window is set to Yes.
The communication object receives the communication object value 1 (ON), if the fan speed is not equal to zero (OFF). The
value of the communication object is updated and sent when the fan speed is changed.
This communication object thus defines the status of the fan, whether it is switched on or off. It can also be used for control of
a main switch for the fan.
Telegram value:
16...20
56...60
Not assigned
Function
Switch
0 = fan OFF
1 = fan ON
Status fan ON/OFF
0 = OFF
1 = ON
Note
Some fans require an ON telegram before you set a fan speed. Using the communication object Status fan ON/OFF,
the fan can, for example, be switched on centrally with a switch actuator via the main switch.
Object name
Fan A
Fan CDE
Fan A
Fan CDE
Data type
Flags
1 bit
C, W
DPT 1.001
1 bit
C, T
DPT 1.001
FCL/S x.6.1.1 | 2CDC508116D0203 73
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