I. Module Performance Introduction;

This module has 6 IO buses, each of which can support up to 12 DS18B20 sensors, allowing for a maximum measurement of 72 DS18B20 temperature sensors. The module is widely applicable in multi-channel temperature measurement systems such as cabinets, grain storage, base stations, libraries, etc. It outputs via the 485 bus using the MODBUS-RTU communication protocol, making it convenient for PLC and configuration software applications.

II: Main Parameters of the Module

Operating Voltage: DC8-24V, with power polarity protection, maximum 500mW

Communication Interface: RS-485 interface, two-wire system, ±15KV ESD protection

Communication Rate: 1200～19200bps, software configurable

Communication Format: 1 start bit, 8 data bits, 1 stop bit, no parity bit

Transmission Distance: <1200M (19200bps)

Module Address: 00～255, software configurable

Input Signal: 6 IO buses, each bus can support 12 DS18B20 sensors, maximum 72 DS18B20 sensors

Resolution: Temperature resolution 0.1℃

Measurement Accuracy: －10～＋85℃: accuracy 0.5℃

Measurement Range: －40～120℃

Data Update Time: Approximately 5 seconds

Dimensions: Length*Width*Height＝122mm *70mm * 43mm

Installation Method: 35mm DIN rail mounting

Operating Environment: -20℃~70℃, 35%~85% RH non-condensing

III: Outline Structure Diagram, Pin Definitions