ABB i-bus KNX Product Manual page 185

®
ABB i-bus KNX
Commissioning
No.
13
The Relative dimming telegram for all DALI devices connected to the DALI output is received via this group object. These are
BRIGHTER, DARKER and STOP telegrams. After a START telegram is received, the brightness value is changed in the
defined direction at the parametrized speed. If a STOP telegram is received before the dimming process ends or the maximum
brightness or minimal dimming value is reached, the dimming process is interrupted and the brightness value reached is
retained.
The minimum and maximum dimming thresholds apply and cannot be exceeded.
The dimming thresholds for the individual groups or ballasts also continue to apply.
Switch off via dimming is parametrizable. In other words, selecting this setting switches off the DALI lamps on the output if all
the devices have reached the minimal dimming value.
Dimming time cannot be changed via KNX.
No.
14
This group object receives a brightness value for all the DALI devices connected to the DALI output. Any burn-in time currently
running has a higher priority, so under certain circumstances individual devices can only adopt a brightness of 100% or OFF.
Dimming time to reach brightness value is defined in the X Output parameter window, p. 40.
Brightness values above or below the predefined max. brightness or min. dimming values (dimming thresholds) are mapped to
the threshold values.
Telegram value:
15
This group object is enabled if the Enable Group object "Status brightness value" parameter is set to Yes in the X Output
parameter window, p. 40.
Telegram value:
This group object signals the status of the current DALI output brightness value. If the DALI devices have different brightness
values you can define whether the gateway displays the lowest, highest or average value. You can also define whether the
value of the group object is updated during a dimming process or whether the status is only sent once the final value has been
reached.
You can define whether the status is sent On change and/or On request.
Function
Relative dimming
Dependent on parameter
Function
Brightness value
Dependent on parameter
0 = 0% (OFF), or min. dimming threshold if parametrized
...
255 = 100%
Status brightness value
Dependent on parameter
0 = 0% (OFF)
...
255 = 100%, max. brightness value
Group object name
Output A
None
Group object name
Output A
None
Output A
Enable Group object "Status brightness value"
DG/S x.64.1.1 | 2CDC507164D0201 183
Data type Flags
4 bit C, W
DPT 3.007
Data type Flags
1 byte C, W
DPT 5.001
1 byte C, R, T
DPT 5.001