Appearance specifications

Compact and lightweight, beautiful and sturdy, easy to carry and assemble,wind vane shape design is reasonable, Has an accurate positioning effect.Specifications are as follows:

Material

The use of polycarbonate material, with rain, anti-corrosion, anti-aging, durable and so on.

Applicable scope

The sensor can measure the wind direction in the outdoor environment, you can measure the label north of the starting point of 0-360 degrees of natural wind, high cost performance.

Features

Small size, light weight, easy to carry and install the field

Detection of high precision, the system uses low-power environmentally friendly energy-saving design

Wide range, good stability

Data information shows good linearity, long signal transmission distance, strong resistance to external interference

Fixed method

Using flange installation method, thread flange connection to the lower part of the wind direction sensor tube firmly fixed on the flange, Chassis Φ66mm, In the Φ50mm circumference to open the fourΦ6mm mounting holes. With bolts to tightly fixed on the bracket, so that the entire set of equipment to maintain the best level, To ensure the accuracy of the wind direction data, flange connection easy to use, able to withstand greater pressure.

 

 

Technical Parameters

Measuring range: 0--360 degrees

Load capacity:  Less than 600Ω, general advice250Ω

 

Voltage type:

Input voltage: 7V ~ 24V DC

Output signal: 0.4 ~ 2V

Wind direction value = (output voltage -0.4) / 16 * 360

 

Current type:

Input voltage: 12V ~ 24 V DC

Output signal: 4 ~ 20mA

Wind direction value = (output current -4) / 16 * 360

 

 

Type 485:

Input voltage: 7V ~ 24V DC

Communication protocol:  The wind direction sensor uses the standard modbus communication protocol. You can use the 03 command to read the wind direction value(Note: product factory number is No. 2 station).

 

Send data command format:

 

02 03 00 00 00 01 84 39

 

02: Equipment station number

03: Command number, used in the standard modbus protocol to read data in memory

00 00: Read the start address of the data, the wind direction value exists in the memory 00 00 at the beginning of the address

00 01: read the number of data, the wind value in the memory occupies a data space, modbus specifies that a data data space occupies 2 bytes of space.

 

84 39: CRC check value

 

 

 

Receive command format analysis:

 

02 03 02 01 45 3C 27

 

02: Equipment station number.

03: Command number

02: Returns the length of the data

01 45: return wind direction value, In Modbus, the upper 8 bits of data are specified, low 8 in the post. So （Wind direction = wind return value = 0145，the user can calculate the wind value according to the actual return value, where the figures are hexadecimal）

3C 27: CRC check value.

 

 

Set the station number protocol:

 

Send: 00 10 10 00 00 00 02 00 05 CRC

00: Set station number can only use 00 station

10: Write command
10 00: write register start address, fixed can not be changed

00 01: Write the number of registers, fixed can not be changed

02: Write the number of bytes

00 05: Station number

CRC: CRC check

Received: 00 10 10 00 00 01 CRC

00: Set station number can only use 00 station

10: Write command

10 00: write register start address, fixed can not be changed

00 01: Write the number of registers, fixed can not be changed

CRC: CRC check

 

 

Appendix: CRC check function

int  CRC_Check(char *m_Data,short m_Size)

{

    int i0,i1;

    char CRC16Lo,CRC16Hi;    //CRC寄存器

    char SaveHi,SaveLo;

    CRC16Lo = 0xFF;

    CRC16Hi = 0XFF;

    for(i0=0;i0<m_Size;i0++)

{

        CRC16Lo = CRC16Lo ^ *(m_Data+i0);         //每一个数据与CRC寄存器进行异或

        for(i1=0;i1<8;i1++)

{

            SaveHi = CRC16Hi;

            SaveLo = CRC16Lo;

            CRC16Hi >>=1;                     //高位右移一位

            CRC16Lo >>=1;                       //低位右移一位

            if((SaveHi & 1) == 1)           //如果高位字节最后一位为1

   {

                CRC16Lo |=0x80;                //则低位字节右移后前面补1

    }

           if((SaveLo & 1) == 1)             //如果LSB为1，则与多项式码进行异或

   {

                CRC16Hi ^=0XA0;

                CRC16Lo ^=1;

   }

}

}

return ( CRC16Hi << 8 )| CRC16Lo;

}  

 

Line color definition

 

Current and voltage signal output line color definition

Name	External line color
power supply	red	Or	brown
	blue		black
signal	yellow		blue

 

 

485 output line color definition

Name	External line color
Power supply	Brown
485-A	Blue
485-B	gray
ground line	Black

 

 

 

Precautions

 

Illustration

 

 

 

Caveat

Not in accordance with the line order wiring, this may cause damage to the equipment.

When the input power exceeds the maximum access power of the device, it will cause damage to the device.

 

 

 

Attention

Please read this manual thoroughly before use

Connect the equipment line correctly

 

First confirm that

Check that the device is the same as the one you purchased

Check the appearance of the equipment is damaged

Check whether the equipment accessories are complete

 

 

Maintenance

 

The instrument is a good design and functional principles of technology products, should pay attention to maintenance . The following suggestions will help you to use the maintenance service effectively.

 

To avoid scratching the instrument, to maintain the integrity of the external protective film to increase the service life of the instrument.

When using the instrument, please fix the connection parts firmly, to avoid damage to the instrument.

Do not paint the instrument with paint, smear will block the debris in the removable parts and thus affect the normal operation.

Use a clean, dry, soft cloth to clean the outside of the instrument.

Check the power of other configured devices regularly to ensure that the instrument can work properly.