I General; Available Functions Codes; Modbus Mapping; General Parameters - envea CAIRSENS PM Série Notice Technique

1 General
1.1 Overview
The official Modbus specification can be found at
Version
1.0.0
1.2

Available functions codes

Code
03
06
16
23
2

MODBUS mapping

2.1

General parameters

Address
0 .. 9
10 .. 19
20 .. 29
30 .. 39
40
41
42
43
44
45
2.2 Measure
Address
80 .. 81
82 .. 83
84 .. 85
86 .. 87
88 .. 89
2.3 Stored data PM10 (µg/m3)
Address
100 .. 101
102 .. 103
104 .. 105
© 2020 ENVEA
Date
July 2019
Action
Read holding registers
Write single holding register
Write multiple holding registers
Read and write multiples holding registers
Register
1 .. 10
11 .. 20
21 .. 30
31 .. 40
41
42
43
44
45
46
register Access
81 .. 82 R
83 .. 84 R
85 .. 86 R
87 .. 88 R
89 .. 90 R
Register Access
101 .. 102 R
103 .. 104 R
105 .. 106 R
www.modbus.org/specs.php
Comments
Initial manual
Access
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
Data
float
float
float
float
float
Data
float
float
float
Data
String
String Version( ex 1.52 )
String
String Gaz ( ex CO )
uint16 Year ( ex 2019 )
uint16 Month ( 1 to 12 )
uint16 Day ( 1 to 31 )
uint16 Hours ( 0 to 23 )
uint16 Minutes ( 0 to 59 )
uint16 Seconds ( 0 to 59 )
Description
PM10( µg/m3)
PM2.5( µg/m3 )
Temp(°c)
Humidity(%)
PM1 ( µg/m3 )
Description
Last memorized value T0
memorized value T0- 1 minute
memorized value T0- 2 minutes
General
3
Description
ENVEA
Serial