ARC intensity commands and Colour Temperature commands are sent to the 16 group addresses
of each circuit. The DALI devices must be commissioned and group addresses allocated in
order to use this mode. Additionally, the DALI devices must be set to use “DT8 type Colour
Temperature”. DALI Mask values are not transmitted.
ARC intensity commands and Colour Temperature commands are sent to the broadcast address
of each circuit.
DALI colour temperature commands use a unit called Mirek (Mirek = 1,000,000 / Kelvin). The
unit does not map well to DMX512 as it inefficiently uses a 16-bit number.
DMXtoDALI uses a unit called Cinc to simplify translation. (Cinc = Mirek – 143). Table 11 shows
how this translates. Essentially this allows one DMX512 channel to control all the useful colour
temperatures.
The DALI devices do not need to be commissioned to operate in this mode. However, the
DALI devices must be set to use “DT8 type Colour Temperature”. DALI Mask values are not
transmitted.
ARC intensity commands and RGBWAF (Red, Green, Blue, White, Amber, Free) colour
commands are sent to the broadcast address of each circuit. DALI encodes the RGB section and
the WAF section in different commands. For this reason, only changing the DMX512 channels
that affect RGB or WAF will result in better DALI bandwidth management.
The DALI devices do not need to be commissioned to operate in this mode. However, the DALI
devices must be set to use “DT8 type RGBWAF”. DALI Mask values are transmitted for colour
values but not intensity.
All four (broadcast, group, device and scene) addressing modes are available in this mode.
This allows the DMX512 controller to manage DALI bandwidth by prioritising use of broadcast
and group addressing with occasional use of device addressing. The DALI devices must be
commissioned in order to use this mode. DALI Mask values are not transmitted.
4 DT0 Mulitmode
The value of the DMX512 channel is used to define the DALI scene number that will be selected
(played). Table 10 shows the translation. The value of zero does not trigger a scene select. This
mode can be used to recall colour scenes if they have been programmed. The DALI devices
do not need to be commissioned to operate in this mode.
5 DTx Scene Select
6 DT8 Colour Temperature Broadcast
7 DT8 Colour Temperature Group
8 DT8 RGBWAF Broadcast
9 DT8 RGBWAF Group
ARC intensity commands and RGBWAF colour commands are sent to the 16 available group
addresses of each circuit. The DALI devices do not need to be commissioned to operate in
this mode. Additionally, the DALI devices must be set to use “DT8 type RGBWAF”. DALI Mask
values are transmitted for colour values but not intensity.
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DMXtoDALI quad User Guide
