SONBEST SM2170B, Руководство пользователя

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SM2170B Us er Ma nual
http://www.sonbus.com/
Sha nghai Son
best Industrial Co., Ltd Page2
Brand SONBEST
CO2 range 0~5000ppm
CO2 accuracy
±
100ppm
Communication Interface RS485
Default baud rate 9600 8 n 1
Power DC9~24V 1A
Running temperature -40~80° C
Working humidity 5%RH~90%RH
Product Size
Wiring instructions
Any incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as
follows in the case of power failure, and then connect the cable to confirm the correctness and then use it
again.
ID Core color Identification Note
1 Red V+ Power +
2 Green V- Power -
3 Yellow A+ RS485 A+
4 Blue B- RS485 B-
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 addr ess is 1 when the device is shipped, the default baud rate is
9600, 8, n, 1