47
22.825 = reg1: 0, reg2: 22825). Error values are transmitted as numbers lower then
-320000000 (e.g -320000011 = Error 11).
IEEE 754
Value is a 32bit IEEE 754 float value transmitted via two Modbus registers. Value
22.704 is transmitted like a reg1: 0xA317 and reg2: 0x41B5.
Table of decimal places for INT*X:
Measured value
Nr. of dec.
places
Unit
Example
Temperature
1 (= *10)
°C or °F
125 = 12.5 °C
Relative humidity
1 (= *10)
%RH
80 = 80.1 %RH
Dew point
Absolute humidity
Specific humidity
Mixing ratio
Specific enthalpy
Humidex (at °C)
1 (= *10)
°C or °F
g/m
3
g/kg
g/kg
kJ/kg
93 = 9.3 °C
85 = 8.5 g/m
3
76 = 7.6 g/kg
78 = 7.8 g/kg
445 = 44.5 kJ/kg
258 = 25.8
Barometric pressure
1 (= *10)
2 (= *100)
1 (= *10)
1 (= *10)
2 (= *100)
1 (= *10)
3 (= *1000)
1 (= *10)
hPa
kPa
mBar
mmHg
inHg
inH
2
O
PSI
oz/in
2
10117 = 1011.7 hPa
10117 = 101.17 kPa
10118 = 1011.8 mBar
7588 = 758.8 mmHg
2988 = 29.88 inHg
4062 = 406.2 inH
2
O
14675 = 14.675 PSI
2348 = 234.8 oz/in
2
CO
2
concentration
0 (= *1)
ppm
890 = 890 ppm