Theben DU 1 Manual page 50

6.7.3 Input I1, I2: Dimming function

If direct control is not required, inputs I1 and I2 are available as KNX binary inputs.

The parameter Control channel C1 directly must be set to no for this purpose.
Designation
Channel function
Control channel C1 directly
Debounce time
Activate block function
Block telegram
Long button push starting at
Double-click additional function
Direct control of C1 possible.
16
Flush-mounted dimming actuator DU 1
Values
Switch..
Button..
Dimming..
16
Blinds..
Window contact..
yes
No
30 ms, 50 ms, 80 ms
100 ms, 200 ms,
1 s, 5 s, 10 s
no
yes
Block with 1 (standard)
Block with 0
300 ms, 400 ms
500 ms, 600 ms
700 ms, 800 ms
900 ms, 1 s
no
yes
Description
The input controls a dimming
actuator,
I1 is used exclusively as an input
for dimming actuator channel C1.
I1 is connected to C1 internally
and has no communication
objects.
I1 is used purely as a KNX binary
input.
There is no internal connection to
the switch actuator.
In order to avoid disruptive
switching due to bouncing of the
contact connected to the input,
the new status of the input is
only accepted after a delay time.
Larger values (≥ 1 s) can be used
as a switch-on delay
No block function.
Show block function parameter
page.
0 = cancel block
1 = block
0 = block
1 = cancel block
Serves to clearly differentiate
between long and short button
push.
If the button is pressed for at
least as long as the set time,
then a long button push will be
registered.
No double-click function
The double-click parameter page
is shown.