Table of Contents
Advertisement
Quick Links
SM2130B-CH2O using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS
and other instruments or systems for monitoring formaldehyde state quantities.The internal use of
high-precision sensing core and related devices to ensure high reliability and excellent long-term
stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and
other output methods.
Technical Parameters
Technical parameter
Brand
CH2O range
CH2O accuracy
CH2O response time
CH2O recovery time
Communication Interface
Default baud rate
Power
Running temperature
Working humidity
Wiring instructions
Any incorrect wiring can cause irreversible damage to the product. Please carefully wire t he cable as
follows in the case of power failure, and then connect the cable to confirm the correctness and then use it
again.
ID
1
2
3
4
In the case of broken wires, wire the wires as shown in the figure. If the product itself has no leads, the
core color is for reference.
Communication Protocol
The product uses RS485 MODBUS-RTU standard protocol format, all operation or reply commands
are hexadecimal data. The default device address is 1 when the device is shipped, the default baud rate is
9600, 8, n, 1
1. Read Data (Function id 0x03)
best Industrial Co., Ltd
Sha nghai Son
SM2130B-CH2O Us er Ma nual
SM2130B-CH2O
RS485 interface formaldehyde sensor
File Version: V21.3.24
Core color
Red
Green
Yellow
Blue
User Manual
Parameter value
SONBEST
0~5ppm
±0.1ppm
≤ 60 seconds
≤ 60 seconds
RS485
9600 8 n 1
DC9~24V 1A
-40~80° C
5%RH~90%RH
Identification
V+
V-
A+
B-
http://www.sonbus.com/
Note
Power +
Power -
RS485 A+
RS485 B-
Page1
Advertisement
Table of Contents
Related Manuals for SONBEST SM2130B-CH2O
Summary of Contents for SONBEST SM2130B-CH2O
- Page 1 User Manual File Version: V21.3.24 SM2130B-CH2O using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS and other instruments or systems for monitoring formaldehyde state quantities.The internal use of high-precision sensing core and related devices to ensure high reliability and excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and other output methods.
- Page 2 SM2130B-CH2O Us er Ma nual Inquiry frame (hexadecimal), sending example: Query 1# device 1 data, the host computer sends the command:01 03 00 00 00 01 84 0A . Device ID Function id Start Address Data Length CRC16 00 00...
- Page 3 SM2130B-CH2O Us er Ma nual 00 66 00 02 E8 27 Response should be in the data, after the modification is successful, the first byte is the new device address. After the general device address is changed, it will take effect immediately. At this time, the user needs to change the query command of the software at the same time.
- Page 4 SM2130B-CH2O Us er Ma nual operate in this way. The same, the general temperature, humidity have this parameter, the light generally does not have this item. (2)Change correction value For example, the current state quantity is too small, we want to add 1 to its true value, and the current value plus 100 correction operation command is:01 06 00 6B 00 64 F9 FD .
Need help?
Do you have a question about the SM2130B-CH2O and is the answer not in the manual?
Questions and answers