ABB i-bus
®
KNX
Commissioning
© 2008 ABB STOTZ-KONTAKT GmbH
45
What is the debounce time?
If an edge is detected at an input, the input will react immediately to
this edge, e.g. by sending a telegram. At the same time, the duration
of the debounce time T
D
starts. The signal on the input is not
evaluated within the debounce time duration.
The following example clarifies this:
After detection of an edge on the input, further edges are ignored for
the debounce time T
D
.
Connected contact type
Options: closed
opened
Here you set if the contact on the input is a normally closed contact or
normally open contact.
Dimming functionality
Options:
Dimming and switching
Only
dimming
With this parameter you define if the lighting can only be dimmed
(Only
dimming)
or if additional switching is also permitted
(Dimming and
switching)
.
In this case a long button bush dims and a short button push
switches.
How does 1 button dimming function?
Switch and dim functions can be controlled completely using a single
push button. With each long operation alternate BRIGHTER or
DARKER dimming occurs, or with short operation alternate switch on
or off occurs.
If the communication object
Switch
= 0, a BRIGHTER telegram is sent
at all times. In order to evaluate the switch feedback of the actuator,
the
Write
flag of the communication object
Switch
is set.
The following table shows the function in detail:
Object value Switch
Value of the last
dimming telegram
Reaction of the dimming
actuation (sends dimming
OFF DARKER
BRIGHTER
OFF BRIGHTER
BRIGHTER
ON DARKER
BRIGHTER
ON BRIGHTER
DARKER
T
D
T
D
T
D
Input signal
Detected pulse edge