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when the object is “On”, and the other one will do when the object is
“Off”).
State-dependent (both LEDs
): the light status of the LEDs in the pair will
be, as above, determined by the value of the “[X] Binary control” object,
therefore behaving as a state indicator. However, in this case both LEDs
will always share the same light status, i.e., switching on and off together.
Dimmer
: selecting this option, which permits implementing light dimming
through the pair of buttons, will bring up two new communication objects: “[X]
Light On/Off” (binary object for switching on/off the light source, by sending the
values “1” or “0”, respectively) and “[X] Light dimming“ (a 4-bit object that permits
performing step-dimming of the light source, according to
Dimming step
Number of presses required
for the entire 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 2
Step-dimming
Pair buttons configured for light dimming behave as follows:
Off/Decrease button
: a short touch will send an order to turn the light off
("[X] Light On/Off”=0). A long touch will send an order to decrease the
light level the amount parameterized as the dimming step, unless the
button is released again before this decrease ends, which will send a
“stop” order (0x00, in this case).
On/Increase button
: a short touch will send an order to turn the light on
("[X] Light On/Off”=1). A long touch will send an order to increase the light
level the amount parameterized as the dimming step, unless the button is
released again before this increase ends, which will send a “stop” order
(0x08, in this case).
When the “Dimmer” option has been selected, the parameter
LED lighting
permits, for its part, three alternatives:
