Register
Number
(Decimal)
Address
(Hexadecimal)
Register Description Data Format Unit
Floating Point Values (Metric)
9 0008
hex
Absolute humidity 32-bit float
g/m
3
0009
hex
11 000A
hex
Mixing ratio 32-bit float g/kg
000B
hex
13 000C
hex
Wet-bulb temperature 32-bit float °C
000D
hex
15 000E
hex
Enthalpy 32-bit float kJ/kg
000F
hex
Floating Point Values (Non-metric)
129 0080
hex
Relative humidity 32-bit float %RH
0081
hex
131 0082
hex
Temperature 32-bit float °F
0083
hex
133 0084
hex
Dew point temperature 32-bit float °F
0085
hex
135 0086
hex
Dew/frost point
temperature
32-bit float °F
0087
hex
137 0088
hex
Absolute humidity 32-bit float
gr/ft
3
0089
hex
139 008A
hex
Mixing ratio 32-bit float gr/lb
008B
hex
141 008C
hex
Wet-bulb temperature 32-bit float °F
008D
hex
143 008E
hex
Enthalpy 32-bit float Btu/lb
008F
hex
Appendix A – Modbus Registers
49