1 * Температура влажность передатчик SHT20 Сенсор промышленных Класс Высокая точность Температура и влажности мониторинга Modbus RS485

1 * Температура влажность передатчик SHT20 Сенсор промышленных Класс Высокая точность Температура и влажности мониторинга Modbus RS485



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1*Temperature Humidity Transmitter SHT20 Sensor Industrial Grade High Precision Temperature and Humidity Monitoring Modbus RS485

package include:
1*Temperature Humidity Transmitter SHT20 Sensor

product manual:
The product adopts industrial grade chip and high-precision imported SHT20 temperature and humidity sensor to ensure excellent reliability, high precision and interchangeability. RS485 hardware interface (with lightning protection design), the protocol layer is compatible with the standard industrial Modbus-Rtu protocol. This product integrates MODBUS protocol and common protocol. Users can choose communication protocol by themselves. The common protocol has automatic upload function (connecting RS485 will automatically output temperature and humidity through serial port tuning tool).

Product Highlights:
Industrial grade products, high-speed SHT20 temperature and humidity sensor, RS485 communication;
The standard MODBUS protocol is integrated with the common protocol, and the user can select the communication protocol by himself;
The baud rate can be set by itself;
The normal protocol has an automatic upload function, and the upload rate can be set by itself.

Product parameters:
Working voltage: DC4-30V (maximum not to exceed 33V)
Maximum power: 0.2W
Working temperature: temperature -20 ° C +60 ° C, humidity 0% RH-100% RH
Control accuracy: temperature ± 0.3 ° C (25 ° C), humidity ± 3% RH (25 ° C)
Output interface: RS485 communication (standard MODBUS protocol and custom common protocol), see protocol description
Device address: can be set 1-247, the default is 1
Baud rate: default 9600 (user can set it by itself), 8-bit data, 1 stop, no parity
Size: 60*30*18


MODBUS protocol

Function code used by the product:
0x03: Read holding register
0x04: Read input register
0x06: Write a single holding register
0x10: Write multiple holding registers

Register type

Register address

Data content

Number of bytes

Input register

0x0001

temperature scale

2

0x0002

Humidity value

2

Hold register

0x0101

device address

(1~247)

2

0x0102

Baud rate

0:9600

1:14400

2:19200

2

0x0103

Temperature correction(/10)

-10.0~10.0

2

0x0104

Humidity correction value(/10)

-10.0~10.0

2