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High Quality Waterproof RS485 PT100 K-type thermocouple 18B20 Temperature Sensor Probe
High Quality Waterproof RS485 PT100 K-type thermocouple 18B20 Temperature Sensor Probe
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High Quality Waterproof RS485 PT100 K-type thermocouple 18B20 Temperature Sensor Probe
Product overview
TTE-TS-XX series R485 temperature transmitter uses low power consumption ST microcontroller to collect temperature in real time, It can be easily networked with computer monitoring host or other industrial computer，output temperature value by RS485，It has the characteristics of accuracy, stability and long life.
Features
• Wide voltage supply and low power consumption.
• High sensitivity, good stability, full range automatic temperature compensation.
• Standard RS485 output，TVS and self - recovery fuse are added to enhance its stability, RS485 achieves long-distance communication.
• Support standard Modbus-RTU protocol and use widely used in the industrial field.
Technical parameters
• Power supply: DC5-30V
• Power consumption: ＜0.1W
• IP68 protection，Waterproof, dustproof, can be put underground
• RS485 digital output/Modbus-RTU protocol
• Device address: 1~247
• Baud rate: 1200、2400、4800、9600、19200
• 8 data bits, 1 stop bit, none parity
• Default length of temperature probe cable: 3 meters
Equipment selection
Dimensional Drawing
Wiring
|
Color |
Description |
|
Red |
Power+ |
|
black |
Power- |
|
yellow |
RS485+ |
|
green |
RS485- |
RS485 parameters
Default slave ID: 1
Default baud rate: 9600,
8 data bits, 1 stop bit, none parity
Modbus registers map：
|
Read status registers, read function code: 0x30 |
||||
|
Register |
Meaning |
Number of bytes |
Unit |
Description |
|
2001 |
Temperature |
2 |
0.01℃ |
Output value |
|
Parameters registers, read function code: 0x30, write function code: 0x06 |
||||
|
3001 |
Slave ID |
2 |
1 |
1-247（default is 1） |
|
3002 |
Baud rate |
2 |
1 |
Integer multiples of 1200 Default is 8 (rate=9600) |
|
3007 |
Temperature unit |
2 |
1 |
0: Celsius (default) 1: Fahrenheit |
|
3011 |
Calibration value |
2 |
1 |
Output value=Collection value - default calibration value=0 |
E.g., master read temperature:
|
Address |
Function Code |
Start Address (Hi) |
Start Address (Lo) |
Number of Points |
Number of Points |
Error Check (Lo) |
Error Check (Hi) |
|
0x01 |
0x03 |
0x07 |
0xD0 |
0x00 |
0x01 |
0x84 |
0X87 |
Transmitter responds:
|
Address |
Function Code |
Number byte |
Temperature value |
Error Check |
Error Check |
|
0x01 |
0x03 |
0x02 |
0x08 0x53 |
0xFF |
0xB9 |
Temperature calculates:
Temperature: 0853 H=2131 => temperature= 21.31℃
