Autotronic Enterprise Co., Ltd. - Environmental sensing, liquid measurement and analysis.

How to read Modbus RS485 data? - FAQs | Autotronic Enterprise Co., Ltd.

Aecl How to read Modbus RS485 data?. For over 45 years, Aecl has been an experienced and reliable manufacturer, providing high-quality sensing products for building, industrial automation, smart agriculture, and HVAC systems.. With over 40 years of experience, Aecl follows industrial standards and develops environmental sensing products to ensure stability and reliability. Aecl values each customer's request and provides customized sensing solutions.

How to read Modbus RS485 data?

For over 45 years, Aecl has been an experienced and reliable manufacturer, providing high-quality sensing products for building, industrial automation, smart agriculture, and HVAC systems.

How to read Modbus RS485 data?

Please ensure that you have prepared the hardware and software before connecting the Modbus.

Hardware:
A transmitter that communicates with the Modbus RTU protocol.
A USB to RS485 converter.
Connecting cables for signal (CR+, CR-) and external power.

Software:
ModScan, Modbus Poll, or other Modbus readers.
This software can read data via the RS485 serial port on your PC.

  1. Connect a transmitter to your PC using a USB to RS485 converter.
  2. Ensure that the USB to RS485 converter is properly connected.
  3. Right-click on "Start" and select "Device Manager".
  4. Find “Ports (COM & LPT)” and check which port is connected.
  5. Open ModScan and click on “Connection”, select “Connect”.
  6. Choose the correct COM port and set the configuration to: 9600, 8, None, 1
  7. Enter the “Device ID”, select “03: Holding Register” and input the “Length”.


Your PC will start receiving data via the RS485 port once you complete all these steps.
If you encounter any issues with the Modbus RTU connection, please don't hesitate to reach out to us for assistance.
Download the Connection Instruction below to find out more details.

Files Download
ModScan Connection Instruction

A Setup Guide for Connecting Modbus to a PC.

Download
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Aecl How to read Modbus RS485 data? Introduction

Autotronic Enterprise Co., Ltd. is Taiwan professional automation environmental sensing, liquid measuring system controller and signal converter consultant in Industrial Equipment Industry. Aecl has been offering our customers high quality Temperature and Humidity Transmitter, Temperature Transmitter, Sensing Module, Humidity Sensor, Air Quality Display, Surge Protection, Gas Detector, PM 2.5 Monitoring, Transmitter, Heat Meter, Wireless, BTU Meter, Liquid Measurement since 1976. With both advanced technology and 40 years experience, Aecl always make sure to meet each customer's demand.