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Product

 [SM3001B]  RS485 interface industrial 24% range soil moisture sensor

SM3001B SM3001B

Technical Parameters

Technical parameterParameter value
BrandSONBEST
Moisture measuring range0~24%
Moisture measuring accuracy ±3% @25℃
Communication InterfaceRS485
Default baud rate9600 8 n 1
PowerDC9~24V 1A
Running temperature-30~85℃
Working humidity5%RH~90%RH

Product Size

SM3001B SM3001B SM3001B SM3001B

Wiring instructions

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Application solution

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Product List

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Pictures

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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 leaves the factory, and the module or NON-Recorder default baud rate is 9600,8,n,1 ,but data recorder default baud rate is 115200 .
1. Read data (function code 0x03)
    Inquiry frame (hexadecimal), sending example: query 1 data of 1# device, the upper computer sends the command: 01 03 00 00 00 01 84 0A .
Address Function Code Start Address Data Length Check Code
010300 0000 0184 0A
    For the correct query frame, the device will respond with data: 01 03 02 00 79 79 A6 , response format:
Address Function Code LengthData 1Check Code
0103 0200 79 79 A6
    Data description: The data in the command is hexadecimal, take data 1 as an example, 00 79 is converted to decimal value as 121, assuming the data magnification is 10, the real value is 121/10=12.1, Others and so on.
2. Common data address table
Configuration Address Register Address Register Description Data Type Value Range
4000100 0024%soil MoistureRead Only0~65535
4010100 64Model CodeRead/Write0~65535
4010200 65 total number of measuring points read/write 1~20
4010300 66device addressread/write1~249
4010400 67baud rateread/write0~6
4010500 68communication moderead/write1~4
4010600 69protocol typeread/write1~10

software for test product
After downloading, please read the readme.txt documentation

RV1000 DEGBUG AND TEST SOFTWARE

Data and Software
software for test product
After downloading, please read the readme.txt documentation

RV1000 DEGBUG AND TEST SOFTWARE

Data and Software

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TYPE: SM3001B

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