Modbus Human Infrared Sensor Communication Protocol

(1) Data format:

1.

wired RS485 Communication mode: Baud rate 9600, 8 Data bits, 1 A starting position, A stop position, No checksum common 10 One bit.

(Two) , Communication protocol

1, Infrared sensing sends control commands

DATA0: 0X01

ID

DATA1: 0X06

Command code

DATA2: 0x00 Register address high

DATA3: 0x02 Low register address

DATA4: 0X00

Sensing high data of someone

DATA5: 0X01

Sensing low data of someone (01 Someone; 00 unmanned)

DATA6: CRCL

DATA7: CRCH

Verification algorithm: MODBUS/CRC-16 x16+x15+x2+1

remarks: Data transmission adopts active transmission, The number of transmissions is 3 If there is 100MS The internal host will return the data generated by the sensor to the sensor, The sensor will stop sending data .

2 Infrared reception ID set up

DATA0: B4 Frame header

DATA1: C4 Frame header

DATA2: Number of data 05

DATA3: Set infrared ID High

DATA4: Set infrared ID Low

DATA5: Set infrared ID High

DATA6: Set infrared ID Low

DATA7: 0X55

3 Upload illuminance information package

DATA0: 0X01

ID

DATA1: 0X06

Command code

DATA2: 0x00 Register address high

DATA3: 0x03 Low register address

DATA4: 0X00

Illuminance data (HBH)

DATA5: 0X01

Illuminance data (HBL)

DATA6: 0X00

Illuminance data (BH)

DATA7: 0X01

Illuminance data (BL)

DATA8: CRCL

DATA9: CRCH

Verification algorithm: MODBUS/CRC-16 x16+x15+x2+1

1, Illumination calculation method HEX Follow the four bytes accordingly (HBH,HBL,BH,BL) Combine them in sequence to form one 32 The number of digits in the light sensing test at this time

Degree value, For example HEX (00002222) =8738 lux;The maximum value is 65535 LUX.

2, Illuminance interval 1 Upload once per minute, 3 The change within seconds is greater than 10LUX Upload immediately 3 Secondly, Each time interval 100MS If in 100MS

The internal host will return the data generated by the sensor to the sensor, and the light sensor will stop sending data.

4 Light sensing reception ID Set data format

DATA0: B4 Frame header

DATA1: C4 Frame header

DATA2: Number of data 05

DATA3: Set infrared ID High

DATA4: Set infrared ID Low

DATA5: Set infrared ID High

DATA6: Set infrared ID Low

DATA7: 0X55

5 Upload data of radar+infrared dual sensor sensing information

DATA0: 0X01

ID

DATA1: 0X06

Command code

DATA2: 0x00 Register address high

DATA3: 0x04 Low register address

DATA4: 0X00

Infrared sensing has low human data (0xaa Someone; 0x55 unmanned)

DATA5: 0X01

Radar sensing has low human data (0xaa Someone; 0x55 unmanned)

DATA6: CRCL

DATA7: CRCH

Verification algorithm: MODBUS/CRC-16 x16+x15+x2+1

6 Radar+infrared dual sensing ID Set information

DATA0: B4 Frame header

DATA1: C4 Frame header

DATA2: Number of data 05

DATA3: Set infrared ID High

DATA4: Set infrared ID Low

DATA5: Set infrared ID High

DATA6: Set infrared ID low

DATA7: 0X55