Basic Documentation

Configuration
Modbus registers
4
8 | 14 A6V12045847_en--_a
Name Range/numeration Default
Identity Slave -
Cable length < 600 m -
NOTES:
● Register 764 (Modbus address) cannot be configured as 246 via a master.
Address 246 is reserved for on-event addressing.
4.3 Modbus registers
Holding
Register
(16-bit)
No.
Description Range Unit Scaling Default R/W
1 Temperature value -327…327 °C
-556.6…620.6 °F
°C
°F
0.01 - R
2 Temperature reliability 0 – No error
1 – Bad reliability, unavailable
- - - R
3 Relative humidity value 0…100 % % 0.01 - R
4 Humidity reliability 0 – No error
1 – Bad reliability, unavailable
- - - R
5 CO
2
value 0…2000 ppm ppm - - R
6 CO
2
reliability 0 – No error
1 – Bad reliability, unavailable
- - - R
223 Temperature offset -100...100 °C
-180...180 °F
°C
°F
0.1 0 RW
224 Relative humidity offset -100...100 % % 0.1 0 RW
225 CO2 offset -2000...2000 ppm ppm 1.0 0 RW
401 System unit 0 – Celsius
1 – Fahrenheit
others - invalid value to be
discard
- - 0 RW
1286 SW version: Major &
Minor versions
- - - - R
1287 SW version: Build
version
- - - - R
764 Modbus address 1…247 - - 1 RW
765 Baud rate 0 = Auto
1 = 9600bps
2 = 19200bps
3 = 38400bps
4 = 57600bps
5 = 76800bps
6 = 115200bps
- - 0 RW
766 Transmission format
(start bits-data bits-
parity-stop bits)
0 = 1-8-E-1
1 = 1-8-O-1
2 = 1-8-N-1
3 = 1-8-N-2
- - 0 RW
NOTES: