Basic Documentation

Configurations
Modbus registers (Software version 1.3.13)
4
16 | 40 A6V11160936_en--_c
Holding
Register
(16-bit) No.
Name Description Default R/W
206
Number of particles
PM1.0…PM2.5
In pcs for particle
size between
1.0…2.5 micron
R
207
Number of particles
PM2.5…PM5.0
In pcs for particle
size between
2.5…5.0 micron
R
209 Sensor working status 0: Normal;
1: Replace sensor
module;
2: Communication
error
R
216 Analog output range
0: 0…500 μg/m
3
(default);
1: 0…300 μg/m
3
;
2: 0…100 μg/m
3
;
3: 0…50 μg/m
3
0 R / W
217 Temperature value via bus -40…120 ℃
Resolution
increment is 1 ℃
R / W
218
Relative humidity value via
bus
0…100 %
Resolution
increment is 1 ℃
R / W
219
Data receiving interval via
bus (in min) for
temperature & relative
humidity
1…60 (min) 20 R / W
221
Enable temperature and
relative humidity display via
bus
0: disable (default);
1: enable
0 R / W
1286 Software version
Major and minor
version
R
1287 Software version Build version R
764 Modbus address 1…247 1 R / W
765 Baud rate 1= 9600bps;
2 = 19200bps;
3 = 38400bps;
4 = 57600bps
2 R / W
766
Transmission format (start
bit – data bits – parity –
stop bit)
0 = 1-8-E-1;
1 = 1-8-O-1;
2 = 1-8-N-1;
3 = 1-8-N-2
0 R / W
768
Bus configuration
command
0 = Ready;
1 = Load;
2 = Discard
0 R / W