13
Transfer protocol
Sensors Sewi KNX AQS and Sewi KNX AQS/TH-D
• Version: 10.09.2018 • Technical changes and errors excepted.
5.
Transfer protocol
Units:
Temperatures in degrees Celsius
Air pressure in Pascal
Air humidity in %
Absolute air humidity in g/kg and/or g/m
3
CO
2
content in ppm
Variables in %
5.1.
List of all communication objects
Abbreviation flags:
C
Communication
R
Read
W Write
T
Transfer
U
Update
No.
Text
Func-
tion
Flags
DPT Typ
Size
1
Software version
Output
R-CT
[217.1] DPT_Ver-
sion
2 bytes
41
Temperature sensor: Malfunction
Output
R-CT
[1.1] DPT_Switch
1 bit
42
Temperature sensor: External
measurement
Input
-WCT
[9.1] DPT_Val-
ue_Temp
2 bytes
43
Temperature sensor: Measured value Output
R-CT
[9.1] DPT_Val-
ue_Temp
2 bytes
44
Temperature sensor: Total
measurement
Output
R-CT
[9.1] DPT_Val-
ue_Temp
2 bytes
45
Temperature sensor: Min./Max.
measurement query
Input
-WC-
[1.017] DPT_Trig-
ger
1 bit
46
Temperature sensor: Minimum
measurement
Output
R-CT
[9.1] DPT_Val-
ue_Temp
2 bytes
47
Temperature sensor: Maximum
measurement
Output
R-CT
[9.1] DPT_Val-
ue_Temp
2 bytes
48
Temperature sensor: Min./Max.
measurement reset
Input
-WC-
[1.017] DPT_Trig-
ger
1 bit
51
Temp. threshold value 1: Absolute
value
Input/
Output
RWCT [9.1] DPT_Val-
ue_Temp
2 bytes
52
Temp. threshold value 1: (1:+ | 0:-)
Input
-WC-
[1.1] DPT_Switch
1 bit
53
Temp. threshold value 1: Switching
delay from 0 to 1
Input
-WC-
[7.5] DPT_Time-
PeriodSec
2 bytes
54
Temp. threshold value 1: Switching
delay from 1 to 0
Input
-WC-
[7.5] DPT_Time-
PeriodSec
2 bytes