4-20mA RS485 Modbus wall-mounted temperature and humidity transmitter Sensor wit
SPECIFICATIONS
Brand Name: NONE
Certification: None
High-concerned chemical: None
Model Number: CWT-XYTH
Origin: Mainland China
Power: DC12V~DC24V
Smart home platform: None
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4-20mA RS485 Modbus wall-mounted temperature and humidity transmitter Sensor with display track installation
Basic parameters
Size
Mounting method: Wall mounting or DIN
Open encloser to Wire
RS485 communication Default parameters: 9600,n,8,1
Default device address is 1
Modbus RTU protocol
E.g. master read temperature humidity:
Sensor responds:
Temperature calculates:
00F8 (HEX)= 248 (DEC)
Output value 0~1650 corresponds to -40~125℃
Temperature=125-(-40)*248/1650-40=-15.2℃
Humidity calculates:
00177 (HEX)= 375 (DEC)
Output value 0~1000 corresponds to 0~100%RH
humidity=374*100/1000=37.5%RH
Set slave ID
E.g., set slave ID=9, Master sends
Sensor responds:
Enquiry slave ID
Master sends
Sensor responds:
CWT-XYTH config tool instruction
1 Connect sensor
Connect sensor to PC by a RS485 to USB converter
2 Read value
2.1 read ID
