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In the memmap file, refer to the Memmap of WS433-CO2 sheet to configure the sensor's operating parameters
accordingly.
Typical sensor parameters:
Function
Code
(Read)
Function
Code
(Write)
# of
register
Byte Size
Description
Value
Range
Default
Format
Property
Explanation
4
1
2
%Battery
of sensor
Node
10,30,60,99
uint16
Read
Battery
level, only
04 levels:
10%, 30%,
60% and
99% (full).
When 10%
==> Need
to replace
the battery
4
2
4
CO2 value
of sensor
Node
400..40000
ppm
float
Read
CO2 value
from
Wireless
sensor
4
1
2
Status
bytes of
sensor
Node
uint16
Read
Hi-Byte is
error code,
Lo-Byte is
sensor type
4
2
4
Humidity
value of
sensor
Node
0..100%RH
float
Read
Humidity
value from
Wireless
CO2 sensor
4
2
4
Temperature
value of
sensor
Node
-40..+70°C
float
Read
Temperature
value of
sensor
Node
3
1
2
Data status
of Node
0-9, 99
byte
Read
0-9:
Interval
updated
data
99:
Disconnected
3
1
2
RF Signal
strength of
Node
0-4
byte
Read
From 0 to 4
with 0 is
being lost
connection
RF and 4 is
the
strongest
RF
Memmap resgisters
You can download Modbus Memmap of WS433-CL with the following link:
https://filerun.daviteq.com/wl/?id=BKEaUzdArkoc0Hc7nfpRShdPVToVrqQZ
The reference memmap addresses are based on the order of the sensors added in the Memmap file
above