.com 18
Modbus RTU Register Address Map
Reading Registers
Modbus Function: FN04 Read Input Registers
Modbus
Register
No
Modicon
Register
Absolute
Address
Parameter
Data
Type
Units Notes
1 30001 [0x0] Temperature INT16 °C
The raw value must divided by
10.
Writing Registers
Modbus Function: FN06 Write Single Register
Modbus
Register
No
Modicon
Register
Absolute
Address Parameter
Data
Type
Notes
3 40003 [0x2]
Display
Brightness
UINT8 Range 0–8, display off
Display Orientation
The display the sensor can rotated 180°.
Remove the four corner screws, rotate the display,
and reinstall the screws.
2 30002 [0x1]
Relative
humidity
INT16 %RH
The raw value must divided by
10.HW-group
