1 Product description

(1)8ch DS18B20 input channel

(2)RS485 MODBUS RTU standard communication protocol,Netted with configuration software, PLC or industry touch panel

(3)Communication circuit designed for thunder protection and interference immunity

(4)Used for signal collection and control in industrial field



2 Specification

1 Working voltage: DC 7-30V (9V 12V 24V)

2 Working current: 8-22MA

3 Using DS18B20 temperature sensor, up to 8 DS18B20 temperature sensors can be connected at the same time

4 The temperature measurable range is: -55°C to +125°C (-67°F to +257°F).

5 The temperature has an accuracy of +-0.5°C when the temperature is within -10 to 85°C.

6 RS485 communication isolation protection 3000VDC

7 Standard MODBUS RTU command (function code, 06/16 Write, 03/04 Read )

8 Supported baud rates: 1200 2400 4800 9600 (default) 19200 38400 57600 115200

9 Parity: No parity (default) Even parity Odd parity

10 Installation method Standard DIN rail installation

11 Size: 125×70×30mm

12 Weight: 114 grams


3 Interface definition:

VCC : Power input+
GND: Power input-
5V: DS18B20 power supply+
GND: DS18B20 power supply-
D1: DS18B20 channel 1 data port
D2: DS18B20 channel 2 data port
D3: DS18B20 channel 3 data port
D4: DS18B20 channel 4 data port
D5: DS18B20 channel 5 data port
D6: DS18B20 channel 6 data port
D7: DS18B20 channel 7 data port
D8: DS18B20 channel 8 data port
A+: RS485 signal A+
B-: RS485 signal B-

Application

Thermostatic Controls

Industrial Systems

Consumer Products

Thermometers

Thermally Sensitive Systems

Indoor and outdoor temperature measurement

Temperature in vegetable garden

Weather forecasting, and monitoring

Temperature in Computer Room

Warehouse temperature

PLC analog expansion

RS485 Networking Diagram