11
Transfer protocol
KNX B4 Universal Interface
• Version: 13.09.2021 • from application 1.0 • Technical changes and errors excepted.
12
Scene
Input C
This object is used to recall
or learn the configured 8-bit
scene (1-64).
1 byte
DPT1
CR-T-
12
1-bit
Scene
Input C
This object is used to recall
or learn the configured 1-bit
scene (1 or 2).
1 bit
DPT1
CR-T-
13
Counter
Input C
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
14
Interlock
Input C/D
This object is used to lock/
unlock functioning on
receiving the value 1.
1 bit
DPT1
CR-TU
14
Interlock
Input C
This object is used to lock/
unlock functioning on
receiving the value 1.
1 bit
DPT1
CR-TU
15
Switch
Input D
This object is used to switch
on/off, to toggle or to "send
status".
1 bit
DPT1
CR-T-
15
Switch
short
Input D
This object is used to switch
on/off or to toggle on a
short button press.
1 bit
DPT1
CR-T-
15
Counter
reset
Input D
This object is used to reset
the counter on receiving a
telegram with "0" or "1".
1 bit
DPT1
C-W-U
15
Send
value
Input D
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-
15
Dimming
on/off
Input D
This object is used to switch
on/off a dimmable light
source (one-button
dimming).
1 bit
DPT1
CR-T-
15
Sun
protec-
tion up/
down
Input D
This object is used to move
the shutter(s) up or down
(one-button shutter).
1 bit
DPT1
CR-T-
16
Switch
long
Input D
This object is used to switch
on/off or to toggle on a long
button press.
1 bit
DPT1
CR-T-
16
Counter
limit
Input D
This object is used to set the
counter limit availability.
1 bit
DPT1
CR-T-
16
Send
value
long
Input D
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-TU
No.
Name
Function
Description
Lenght
DPT
Flags