Modbus Human Infrared Sensor

Purpose and Characteristics

This product is a sensor designed using PIR infrared sensor to sense moving objects. When the sensor senses movement of an object, it outputs serial data through the RS485 bus, thereby making other electrical equipment run or stop. The product is a high-stability PIR infrared sensor that uses advanced signal processing technology to reduce false alarms from the detector. When an intruder passes through the detection area, the detector will automatically detect human activity in the area.

Technical parameters

1) Input voltage: 9VDC-14V. 2)Current:<85mA 3)Protection level: IP20 4)PIR detection angle:120 degrees 5)Infrared detection range: MAX 8M diameter 6)Sensing continuous output time: about 3 seconds 7)Inductive output method:RS485 serial data 8)LED indication output mode: You can set ON /OFF, and the red LED is PIR output indication 9)Working temperature, humidity: -30℃~+50℃/< 93%RH No dew condensation 10)Installation height: 2.5M<H<3.5M (the installation height can be adjusted according to the output method selected by the guest)

Detection range

Detection range radius is 4m (installation height is 3m)

1. Installation requirements: Ceil-mounted, antenna sensing surface is vertically downward
2. Installation needs to be away from motor interference and heating body interference.

Terminals and Jumper Instructions

1. Terminals: From left to right, they are power supply positive (V+); power supply negative (GND); RS485LB; RS485LA. 2. ID learning button: Press and hold the S1 button for 3 seconds to enter the sensor ID setting mode, and at the same time, you can see the red LED flash (frequency 5HZ). used at this time You can set the sensor ID. If the set ID command is not sent within 60 seconds, the sensor will automatically exit the ID setting mode. 3. Red LED selects jumper: Infrared PIR sensor indicator light ON/OFF selects jumper. When the jumper is on the OFF side, the indicator light is always off, and the jumper is on the ON side. When the infrared sensor detects someone, the indicator light lights up.

Infrared detection range

Overall size and installation size

Communication protocol

Data format

Wired RS485 communication mode: baud rate 9600, 8 data bits, 1 start bit, 1 stop bit, no check bit, a total of 10 bits. 2 Set sensor address according to format

Set sensor address

Write: 01 06 00 0100 01 crc16Read: 03 Function Code00 01Indicates ID=1

Sensing Person Holding Time

Write: 01 06 00 0200 03 crc16Read: 03 Function code00 03Default value, 1-255 seconds adjustable

LED on and off setting

Write: 01 06 00 0400 01 crc16Read: 03 Function code00 00:LED off:00 01On The default setting of 00 01 LED on and off must be at the position where the LED jumper is set to ON

Data transmission method

Write: 01 06 00 0500 01 crc16Read: 03 Function Code00 00: Query:00 01Active Send

Infrared Sensing Status

Read: 01 03 00 0600 01crc16 00 00: No one:00 01SomeoneProduct purchase:https://item.taobao.com/item.htm? ft=t&id=671321364999