10
Transfer protocol
Intelligent Power Supply KNX PS640-IP 2U
• Version: 21.09.2021 • Technical changes and errors excepted.
5.
Transfer protocol
5.1. List of all communication objects
Abbreviations:
R
Read
W Write
C
Communication
T
Transmit
U
Update
DPT Data Point Type
No.
Name
Function
Description
Lenght
DPT
Flags
0
Output
voltage
Send
measured
value
„With „“Cyclic sending““
the device sends the
measured output voltage
value in V (or mV).“
2 bytes
4 bytes
DPT9,
DPT14
CR-T-
1
Output
voltage
threshold
Send
alarm
status
With the measured value
entering the threshold
range a telegram with value
0 or 1 is sent. After
returning to normal
operating a telegram with
value 0 or 1 is sent.
1 bit
CR-T-
2
Output
current
Send
measured
value
„With „“Sending
difference““ and „“Cyclic
sending““ the device sends
the measured output
current value in A (or mA).“
2 bytes
4 bytes
DPT7,
DPT9,
DPT14
CR-T-
3
Output
current
threshold
Send
alarm
status
With the measured value
entering the threshold
range a telegram with value
0 or 1 is sent. After
returning to normal
operating and passing
hysteresis a telegram with
value 0 or 1 is sent.
1 bit
CR-T-
4
Output
current
maximu
m
Send
measured
value
„After the expired tracking
period with „“Automatic
sending““ the device sends
the measured output
current value in A (or mA).“
2 bytes
4 bytes
DPT7,
DPT9,
DPT14
CR-T-
5
Temperat
ure
Send
measured
value
„With „“Sending
difference““ and „“Cyclic
sending““ the device sends
the measured temperature
value in °C.“
2 bytes
CR-T-
