9
Transfer protocol
KNX B4 Universal Interface
• Version: 13.09.2021 • from application 1.0 • Technical changes and errors excepted.
5
Counter 2
Input B
This object is used to send a
predefined value on a short
button press.
2 bit,
1 byte,
2 bytes
DPT2,
DPT5,
DPT7,
DPT9
CR-T-
5
Threshol
d 2
Input B
This object is used to switch
on/off a dimmable light
source (one-button
dimming).
1 bit
DPT1
CR-T-
5
Duration
3
Input B
This object is used to move
the shutter(s) up or down
(one-button shutter).
1 bit
DPT1
CR-T-
6
Switch
long
Input B
This object is used to switch
on/off or to toggle on a long
button press.
1 bit
DPT1
CR-T-
6
Counter
limit
Input B
This object is used to set the
counter limit availability.
1 bit
DPT1
CR-TW
6
Send
value
long
Input B
This object is used to send a
predefined value on a long
button press.
2 bit,
1 byte,
2 bytes
DPT2,
DPT5,
DPT7,
DPT9
CR-T-
6
Dimming
Input B
This object is used to dim
brighter or darker (one-
button dimming).
1 bit
DPT3
CR-T-
6
Blinds
open/
close
Input B
This object is used to stop
movement and adjust the
blinds (one-button shutter).
4 bit
DPT1
CR-T-
7
Scene
Input B
This object is used to recall
or learn the configured 8-bit
scene (1-64).
1 byte
DPT18
CR-T-
7
1-bit
Scene
Input B
This object is used to recall
or learn the configured 1-bit
scene (1 or 2).
1 bit
DPT1
CR-T-
8
Counter
Input B
This object is used as
counter (8-bit, 16-bit or 32-
bit) for rising edge, falling
edge or both edges.
1 byte,
2 bytes,
4 bytes
DPT5,
DPT7,
DPT12
CRWTU
9
Interlock
Input B
This object is used to lock/
unlock functioning on
receiving the value 1.
1 bit
DPT1
C-WTU
10
Dimming
on/off
Input C/D
This object is used to switch
on/off a dimmable light
source (two-button
dimming).
1 bit
DPT1
CR-T-
No.
Name
Function
Description
Lenght
DPT
Flags