Are brightness and colour temperature controlled separately?

Yes. Separate relative dimming, absolute dimming and status objects are provided for brightness and colour temperature.

How is an absolute dimming value sent?

Use the corresponding 1-byte Dim absolute object with the DPT_Scaling datatype listed in the reference.

Tunable white dimmer

Features

Blocking function can be set by a group object for each channel to prevent operating the channel from the bus.
Dimming from warm white (0%) to cold white (100%).
Temperature and brightness dimming relative and absolute objects.
Timing functions (switch-on delay, switch-off delay, staircase duration).
Switch on/off speed and dimming speed adjustable.
Staircase function. Option to extend the staircase duration and to allow manual switch off during the staircase delay.
Up to 4 internal scenes configurable per output.
Day/Night operation mode with selected behavior when switching on and switching off for each mode.

Parameters

PARAMETER	VALUES	DESCRIPTION
Scene control: Scene 1 Scene 2 Scene 3 Scene 4	0 (default) 1 to 64	When set to 0 the channel will ignore corresponding scene. When set to another value, the channel will respond to this scene number. Channel state can be store using the scene group object for further recall.
Switch ON delay	No delay 250ms to 60 min.	The ON or OFF delay causes a delayed switch of the channel. At sending a new switch signal to the channel, first the adjusted delay time expires and afterwards the channel will be switched.
Switch ON/OFF speed	1s (default) 0 to 60s	Duration to go from 0 to 100% during switching on or off.
Dimming speed	5s (default) 0 to 60s	Duration to go from 0 to 100% while dimming.
Dimming curve	Linear (default) Logarithmic Gamma 1 Gamma 2 Gamma 3 Gamma 4 Gamma 5 Dali	Dimming curve depending on the driven load.
Behavior on ON telegram (Day)	Fixed value (default) Last value No reaction	Define the output value when the channel is switched ON during day or if day/night switch is disabled.
Switch ON temperature (day)	40% (default) 0-100%	Fixed value after switched ON during day or if day/night switch is disabled.
Switch ON brightness (day)	80% (default) 0-100%	Fixed value after switched ON during day or if day/night switch is disabled.
Day/Night switch	Disabled (default) Enabled	Enable or disable the use of the day/night mode.
Behavior on ON telegram (Night)	Fixed value (default) Last value No reaction	Define the output value when the channel is switched ON during night if day/night switch is enabled.
Switch ON temperature (Night)	30% (default) 0-100%	Fixed value after switched ON during night if day/night switch is enabled.
Switch ON brightness (Night)	40% (default) 0-100%	Fixed value after switched ON during night if day/night switch is enabled.
Behavior on OFF telegram (Night)	Fixed value (default) No reaction	Define the output value when the channel is switched OFF during night if day/night switch is enabled.
Switch OFF temperature (Night)	30% (default) 0-100%	Fixed value after switched OFF during night if day/night switch is enabled.
Switch OFF brightness (Night)	0% (default) 0-100%	Fixed value after switched OFF during night if day/night switch is enabled.

In case the staircase light function is enabled the following additional parameters are available:

PARAMETER	VALUES	DESCRIPTION
Staircase duration	1s to 12h	Total duration of the staircase lighting. The channel is automatically switched OFF after this delay.
Extend staircase duration	Disabled Enabled (default)	When enabled, the staircase duration is extended each time a ON telegram is received on the staircase object.
Manual switching OFF	Disabled (default) Enabled	When enabled, the channel is switched OFF when receiving a OFF telegram on the staircase object.

Communication Objects

NR	NAME	FUNCTION	SIZE	FLAGS	TYPE
1	Block	On/Off	1 bit	CRW	DPT_Enable
2	Scene	Scene	1 byte	CW	DPT_SceneControl
3	Switch On/Off	On/Off	1 bit	CW	DPT_Switch
4	Staircase	On/Off	1 bit	CW	DPT_Start
5	State On/Off	On/Off	1 bit	CRT	DPT_Switch
6	Temperature - Dim relative	Dim	4 bits	CW	DPT_Control_Dimming
7	Temperature - Dim absolute	Percent	1 byte	CW	DPT_Scaling
8	Temperature - State Dimming value	Percent	1 byte	CRT	DPT_Scaling
9	Night (1) / Day (0) Switch	Night/Day	1 bit	CW	DPT_Switch
16	Brightness - Dim relative	Dim	4 bits	CW	DPT_Control_Dimming
17	Brightness - Dim absolute	Percent	1 byte	CW	DPT_Scaling
18	Brightness - State Dimming value	Percent	1 byte	CRT	DPT_Scaling

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Tunable white dimmer

Features

Parameters

Communication Objects

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