Beijing Dingtek Technology Corp.,Ltd

DT300 2015Temperature & Humidity Sensor Manual

Basic Information
     DT300  2015Temperature & Humidity Sensor Manual 1 Overview The DT300 is one type of temperature and humidity sensor which measure the air temperature and humidity. LED display and wireless version are optional, such as zigbee, wifi, and GPRS. It is applicable for industry, home, agriculture remotely measurement and other application, such as IOT (Internet of Things).   2 Specification      

Measurement Range

Temperature: -55~+125℃, 

Humidity: 0%~100%

Accuracy

±0.5℃, ±3%RH

Power Supply

10-32V DC

Output Signal

Field Bus: RS485, CAN Bus

Wireless: Zigbee, Wifi, GPRS

Protocol

Modbus RTU/ Dingtek

Working Temperature

-40 ~ 85℃

Protection Rank

IP65

LED Display

Optional

Recharge Battery

Optional

Wireless

Optional

      3 Interface Definition   Pin 1: Red Line: V+,  Pin 2: Blue Line: RS485 A+ (CAN +) Pin 3: Black Line: GND Pin 4: Yellow Line: RS485 B- (CAN-)   4 Request (from pc to sensor)  

Section

Header

Command

ID

Content

Checksum

Tail

Bytes

1

2

2

0/6

2

2

Content

$ (0x24)

 

 

 

 

 

Remark

 

in caption

in ascii, 01~FF, in caption

for reading, it is 0. For writing, it is 6 bytes.

calculate sum from header to content, get low 8 bit, then change to 2 ascii 

0x0D 0A

    5 Reply (from sensor to pc)  

Section

Header

Command

ID

Content

Checksum

Tail

Bytes

1

2

2

6

2

2

Content

* (0x2A)

 

 

 

 

 

Remark

 

in caption, see above command list

in ascii, 01~FF, in caption

replied value for reading in mm or L. OKOKOK for successful setting. NONONO for failed setting

calculate sum from header to content, get low 8 bit, then change to 2 ascii 

0x0D 0A

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Beijing Dingtek Technology Corp.,Ltd
[ Beijing China ]
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