Control Telegram And Status With A Communication Object - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and application
The DALI Light Controller features a counter (1...255 h) for each individual DALI device for the function
Burn-in. The resolution of the timing is set internally to five minutes, even though the time is counted in
hours. The DALI Light Controller only indicates the burn-in state but not the remaining or elapsed burn-in
time.
If the lamp is switched off during the activated burn-in time, the burn-in counter stops the counting process.
Should the lamp be switched on again, the counting process will continue and the remaining time will be
rounded off to the nearest 5-minute step.
On light controller supply voltage failure or KNX bus voltage failure on the DALI Light Controller, the
elapsed burn-in time is stored and continues to be used after voltage recovery. The same applies after a
download.
4.7

Control telegram and status with a communication object

The DLR/A allows the option to simultaneously feed back the status (Switch/status, Brightness
value/status) via the control object (Switch, Brightness value).
Here it is important to observe that only one DALI device may feed back the status in a KNX group with
several control objects. The DALI device should be programmed as the broadcaster. Otherwise it is
possible that there is continuous switching over and back of the control and the status.
Example
The lamps to be switched are located in the three lighting groups (group 1, 2 and 3), which are
commonly controlled via a KNX group. The status of the lighting group is to be sent via the KNX. The
following assignments result:
The state of group 1 is used as the status for the entire lighting group.
communication object no.
1
6
12
*) Set send
KNX groups
1/1/1
1/1/4
162 2CDC507128D0202 | DLR/A 4.8.1.1
Name Group assignment
Switch/status Group 1 1/1/4*, 1/1/1
Switch Group 2 1/1/1
Switch Group 3 1/1/1
Name
Switching lighting
Status lights