Channel-Oriented Functional Description - Gira DALI Gateway Product Documentation

4.2.4.4 Channel-oriented functional description

Each group can be separately parameterized in the plug-in. During the programming with the ETS,
the individual DALI devices will be programmed with the parameter data of the assigned groups. All
devices assigned to a DALI group will be put into operation in the exact same way.
If, however, DALI devices have been assigned to several groups these devices will receive the
project design with the highest group number.
Defining the brightness range
The adjustable brightness range of a DALI group can be defined by setting a lower and an upper
brightness value. The "Minimum brightness" and "Maximum brightness" parameters in the "groups -
[x] group name" parameter node (X = group number 1...32) determine the brightness values that will
not be exceeded or under-run during any of the activated operating states of the Gateway (cf. figure
13). This permits to individually adjust the brightness of the addressed lamps of the DALI devices –
also to the perception of the human eye. The configured minimum brightness can only be under-run by
switching it off.
In addition, it is possible to specify the brightness value for the devices of the group which is adjusted
via the "Switching" or "Switching central function" objects every time it is switched on. The "Switch-on
brightness" parameter in the "Groups - [x] group name" parameter node (x = group number 1...32)
defines this "Switch-on brightness" parameter separately for each group. The adjustable value lies
between the minimum and the maximum brightness values (cf. figure 13).
Maximum brightness (z. B. 90 %)
Switch-on brightness (z. B. 70 %)
Minimum brightness (z. B. 10 %)
OFF (0 %)
Figure 13: Example: Brightness range with the switch-on brightness of a DALI group
Best. Nr. 1060 00
"DALI Gateway C00CX2 EN / C00CX4 EN" software
Brightness value
(100 %)
non-adjustable brightness range
adjustable brightness range
non-adjustable brightness range
Functional description
Switching on
relative or
absolute dimming
Switching off
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