Copyright © 2021 ICP DAS Co., Ltd. All Rights Reserved.
∗
E-mail: [email protected] - 51 -
2.
Reading data from multiple CL-213 devices with one Modbus TCP read command
The addresses marked with a red frame in the picture are the internal register addresses on MDCL
for data collected from the five CL-213 devices. The data of temperature, humidity, CO, CO2 and
PM2.5 concentration from different CL-213 devices have been arranged in consecutive addresses.
Using function code 0x04 to read the data addresses from 30000 to 30024, the remote Modbus
master can read data from multiple CL-213 devices with one Modbus TCP read command.
Data Location
Data Address on MDCL
Data Contents
Lobby
300000 ~ 300004
CO, CO2, PM2.5, Temperature, Humidity
Journal Room
300005 ~ 300009
CO, CO2, PM2.5, Temperature, Humidity
Reading Room
300010 ~ 300014
CO, CO2, PM2.5, Temperature, Humidity
Multimedia Center
300015 ~ 300019
CO, CO2, PM2.5, Temperature, Humidity
Stack Room
300020 ~ 300024
CO, CO2, PM2.5, Temperature, Humidity