[SM5388B]  RS485 outdoor aluminum wind speed and direction integrated sensor


SM5388B SM5388B SM5388B

Technical Parameters

Technical parameterParameter value
BrandSONBEST
Wind speed range0~30m/s
Start wind0.2m/s
Wind speed accuracy±3%
Shell materialaluminum
Wind direction range0~360°
Wind direction resolution22.5°
InterfaceRS485/4-20mA/DC0-5V
PowerDC12~24V 1A
Running temperature-30~85℃

Product Selection

    Product DesignRS485,4-20mA,DC0-5VMultiple output methods, the products are divided into the following models depending on the output method.
Product model output method
SM5388BRS485总线
SM5388M4-20mA
SM5388V5DC0-5V

Product Size

SM5388B SM5388B SM5388B SM5388B

Why choose this product?

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How to use?

SM5388B

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 02 C4 0B .
Address Function Code Start Address Data Length Check Code
010300 0000 02C4 0B
    For the correct query frame, the device will respond with data: 01 03 04 00 7A 00 00 DB EA , response format:
Address Function Code LengthData 1Data 2Check Code
0103 0400 7900 7A DB EA
    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 100, then the real value is 121/100=1.21, Others and so on.
2. Common data address table
Configuration Address Register Address Register Description Data Type Value Range
4000100 00wind speedRead Only0~65535
4000200 01conductivityRead 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

1. wind speed and current computing relationship

  For example, the range is 0~30m/s, the analog output is 4~20mA current signal, wind speed and current The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is wind speed range upper limit, A1 is the lower limit of the range, B2 is current output range upper limit, B1 is the lower limit, X is the currently read wind speed value, and C is the calculated current value. The list of commonly used values is as follows:
current(mA)wind speedValue (m/s) Calculation Process
40.0(30-0)*(4-4)÷(20-4)+0
51.9(30-0)*(5-4)÷(20-4)+0
63.8(30-0)*(6-4)÷(20-4)+0
75.6(30-0)*(7-4)÷(20-4)+0
87.5(30-0)*(8-4)÷(20-4)+0
99.4(30-0)*(9-4)÷(20-4)+0
1011.3(30-0)*(10-4)÷(20-4)+0
1113.1(30-0)*(11-4)÷(20-4)+0
1215.0(30-0)*(12-4)÷(20-4)+0
1316.9(30-0)*(13-4)÷(20-4)+0
1418.8(30-0)*(14-4)÷(20-4)+0
1520.6(30-0)*(15-4)÷(20-4)+0
1622.5(30-0)*(16-4)÷(20-4)+0
1724.4(30-0)*(17-4)÷(20-4)+0
1826.3(30-0)*(18-4)÷(20-4)+0
1928.1(30-0)*(19-4)÷(20-4)+0
2030.0(30-0)*(20-4)÷(20-4)+0
    As shown in the above formula, when measuring 8mA, current current is 11.5m/s。

2. conductivity and current computing relationship

  For example, the range is 0~360°, the analog output is 4~20mA current signal, conductivity and current The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is conductivity range upper limit, A1 is the lower limit of the range, B2 is current output range upper limit, B1 is the lower limit, X is the currently read conductivity value, and C is the calculated current value. The list of commonly used values is as follows:
current(mA)conductivityValue (°) Calculation Process
40.0(360-0)*(4-4)÷(20-4)+0
522.5(360-0)*(5-4)÷(20-4)+0
645.0(360-0)*(6-4)÷(20-4)+0
767.5(360-0)*(7-4)÷(20-4)+0
890.0(360-0)*(8-4)÷(20-4)+0
9112.5(360-0)*(9-4)÷(20-4)+0
10135.0(360-0)*(10-4)÷(20-4)+0
11157.5(360-0)*(11-4)÷(20-4)+0
12180.0(360-0)*(12-4)÷(20-4)+0
13202.5(360-0)*(13-4)÷(20-4)+0
14225.0(360-0)*(14-4)÷(20-4)+0
15247.5(360-0)*(15-4)÷(20-4)+0
16270.0(360-0)*(16-4)÷(20-4)+0
17292.5(360-0)*(17-4)÷(20-4)+0
18315.0(360-0)*(18-4)÷(20-4)+0
19337.5(360-0)*(19-4)÷(20-4)+0
20360.0(360-0)*(20-4)÷(20-4)+0
    As shown in the above formula, when measuring 8mA, current current is 94°。

1. wind speed and DC0-5Vvoltage computing relationship

  For example, the range is 0~30m/s, the analog output is 0~5V DC0-5Vvoltage signal, wind speed and DC0-5Vvoltage The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is wind speed range upper limit, A1 is the lower limit of the range, B2 is DC0-5Vvoltage output range upper limit, B1 is the lower limit, X is the currently read wind speed value, and C is the calculated DC0-5Vvoltage value. The list of commonly used values is as follows:
DC0-5Vvoltage(V)wind speedValue (m/s) Calculation Process
00.0(30-0)*(0-0)÷(5-0)+0
16.0(30-0)*(1-0)÷(5-0)+0
212.0(30-0)*(2-0)÷(5-0)+0
318.0(30-0)*(3-0)÷(5-0)+0
424.0(30-0)*(4-0)÷(5-0)+0
530.0(30-0)*(5-0)÷(5-0)+0
    As shown in the above formula, when measuring 2.5V, current DC0-5Vvoltage is 15m/s。

2. conductivity and DC0-5Vvoltage computing relationship

  For example, the range is 0~360°, the analog output is 0~5V DC0-5Vvoltage signal, conductivity and DC0-5Vvoltage The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is conductivity range upper limit, A1 is the lower limit of the range, B2 is DC0-5Vvoltage output range upper limit, B1 is the lower limit, X is the currently read conductivity value, and C is the calculated DC0-5Vvoltage value. The list of commonly used values is as follows:
DC0-5Vvoltage(V)conductivityValue (°) Calculation Process
00.0(360-0)*(0-0)÷(5-0)+0
172.0(360-0)*(1-0)÷(5-0)+0
2144.0(360-0)*(2-0)÷(5-0)+0
3216.0(360-0)*(3-0)÷(5-0)+0
4288.0(360-0)*(4-0)÷(5-0)+0
5360.0(360-0)*(5-0)÷(5-0)+0
    As shown in the above formula, when measuring 2.5V, current DC0-5Vvoltage is 180°。
software for test product
Setup Software
Development File

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