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Siemens
Wall-mounted sensors and room operator units for KNX/ETS and KNX/ACS
CM2N1602en_05
Building Technologies
ETS engineering
2018-09-14
Designation
Values
Type
Visible parameter name in ETS
Range
(
Default
)
Un
it
Q
M
X3
.P3
0
Q
M
X3
.P4
0
Q
M
X3
.P7
0
Q
M
X3
.P3
4
Q
M
X3
.P7
4
Q
M
X3
.P3
7
Q
M
X3
.P0
2
5.5.5 Room air quality sensor
CO
2
concentr.: Send following change by
5;10;20…500;750;1000
(10ppm)
ppm
X
X
CO
2
concentr.: Sensor correction (ppm)
-500…+500 (0 ppm)
ppm
X
X
CO
2
concentr.: Send cyclically after
1;2;3…30;45;60 (15 min)
min
X
X
CO
2
concentr.: Altitude above sea level (m)
0…5000 (0 m)
min.
X
X
5.5.6 Room air quality control
To display this section, enable the option “Activate room air quality control” in
Device
Default switching point stage 1 (ppm)
400…2000 (800)
ppm
X X X X X X X
Default switching point stage 2 (ppm)
400…2000 (1000)
ppm
X X X X X X X
Default switching point stage 3 (ppm)
400…2000 (1500)
ppm
X X X X X X X
Hysteresis
50…500 (100)
ppm
X X X X X X X
If the CO
2
concentration exceeds a switching point CO
2
, the control
value CO
2
for the related stage is switched on. The control value CO
2
is again switched off, if the CO
2
concentration returns to < switching
point CO
2
– hysteresis.
Control value stage 0 (%)
0…100 (0)
%
X X X X X X X
Control value stage 1 (%) (>stage 0)
0…100 (35)
%
X X X X X X X
Control value stage 2 (%) (>stage 1)
0…100 (70)
%
X X X X X X X
Control value stage 3 (%) (>stage 2)
0…100 (100)
%
X X X X X X X
If the CO
2
concentration exceeds a switching point CO
2
, the control
value CO
2
for the related stage is switched on. The control value
issues again the value of the next lower stage when CO
2
concentration < switching point CO
2
– hysteresis.
Stage when overridden
0;1;2;3 (3)
X X X X X X X
Send cyclically after
Do not send cyclically
1;2;3...30;45;60 (15 min)
min.
X X X X X X X
5.5.7 Device display parameters
Backlight Level
0; 10;…100 (60%)
%
X X X
Backlight idle time
3…20 (15 s)
s
X X X
Active unit set
°C; °F (°C)
X X X
Active audio feedback (buttons)
yes; no (yes)
X X X
LED Brightness
0…100 (100)
%
X X
Display: Idle page
(HVAC operation and display)
Temperature
Relative humidity
Air quality
X X X
Time to return to idle page (s)
3…120 (15 s)
s
X X X
