Z41 Pro / Lite / COM
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96
Dimming Step
: sets the increase or decrease in the light level (in terms of
percentage) the dimmer must perform with every step order. How step dimming
works is detailed below.
Setting up a box as a dimming control brings up the objects
[Pn][Bi] Light
Indicator
(1 byte),
[Pn][Bi] Light On/Off
(1 bit) and
[Pn][Bi] Light Dimming
(4
bits). The first one acts as the dimming status object, which is required to be linked
to the analogous object from the dimmer and whose value, in percentage, will be
permanently reflected in the box. On their side, control orders will be sent through
one of the two remaining objects:
After a short press on the “turn on” button, the value “1” will be sent through the
[Pn][Bi] Light On/Off
binary object,
while a short press on the “turn off” button will
trigger the sending of the value
“0”.
When a long pre
ss on the “turn on” button takes place, the object
[Pn][Bi] Light
Dimming
will send the light increment order corresponding to the parameterised
dimming step, while a stop order (value
“8”) will be sent through the same object
as soon as the user releases the button.
When a long press on the “turn off” button takes place, the object
[Pn][Bi] Light
Dimming
will send the light decrement order corresponding to the parameterised
dimming step, while a stop order (value “0”) will be sent through the same object
as soon as the user releases the button.
Table 4 shows the number of steps (that is, of long presses) required for a complete
light regulation (from totally off to totally on, or vice versa) depending on the value
parameterised as the dimming step.
Dimming Step
Button Presses Required for
Complete Dimming (0
– 100%)
(1) 100%
1
(2) 50%
2
(3) 25%
4
(4) 12,5%
8
(5) 6,25%
16
(6) 3,1%
32
(7) 1,5%
64
Table 4
Dimming Steps
Note
:
most light dimmers implement light step dimming progressively (i.e., sending a
dimmer a step order of 25% typically does not imply that the light level is suddenly
incremented/decremented by 25%, but a progressive increment or decrement of the light