Airflow Duplexvent BV400 - Page 16

9.4.4 Modbus Register List
9.4 Modbus Connection
0 1 r - -
Version of program Version of installed program [MMYY]
6
1
r
rpm
-
Speed of supply fan
- -
-
7
1
r
rpm
-
Speed of exhaust fan
-
-
11
0.1
r
ºC
-
Outdoor air temperature
TerOA
-
12
0.1
r
ºC
-
Return air temperature
TerRA
-
13
0.1
r
ºC
-
Supply air temperature
TerSA
-
14
0.1
rw
ºC
[-40,80]
Pro panel temperature
TerP
-
15
0.01
r
%
-
Sensor-1 input
VOC, humidity, CO2 sensors
Constant pressure sensor
-
16
0.01
r
%
-
Sensor-2 input
-
Multiplier
Access
Unit
Limit
Valid
Explanation
Name
ID
28
17
Supply fan high speed value
Filter Sensor
29
1
r
Exhaust fan low speed value
-
30
54
1
rw
-
[0,2]
Supply fan fault method selection
55
1
rw
-
[0,2]
Exhaust fan fault method selection
57
1
rw
ºC
[1,10]
2nd stage temperature difference
0-Tachout, 1-NC, 2-NO
0-Standard, 1-Only exhaust fan, 2-Only supply
fan, 3- VOD
0-Tachout, 1-NC, 2-NO
1
1
r
r
%
-
%
-
-
-
-
Shows if the filter sensor is installed or not
-
-
-
1
r
Exhaust fan medium speed value
-
%
- -
31
50
1
1
r
rw
Exhaust fan high speed value
Mode selection
-
-
-
%
-
-
[0,3]
-
0
0
0
51
1
rw
-
[1,254]
Modbus address
1
3
27
Supply fan low speed value
Supply fan medium speed value
26
1
r
%
-
-
-
1
r
%
-
-
-
58
1
rw
-
[0,1]
Frost protection algoritm
0-Passive 1-Active0
Page 16 of 32
r: read, rw: read and write