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LabVIEWからアクセス可能なModBusデバイスを構築したい

Building a Low-Cost Modbus TCP Slave Device with STM32 + W5500

scott

Published April 03, 2026

Original author: nonsense · JapanOriginal source (new tab)

LabVIEWからアクセス可能なModBusデバイスを構築したい

Components

Hardware components

WIZnet parts

Project description

Summary This project demonstrates how to build a general-purpose I/O Slave device accessible by LabVIEW and other Modbus TCP master software, using an STM32F103 (BluePill) microcontroller and a WIZnet W5500 (WIZ5500) Ethernet controller. Thanks to W5500's hardware TCP/IP offloading, the STM32 can focus entirely on Modbus data handling and I/O control. The result is a practical industrial edge device design that also features a built-in web server for on-site network configuration. Overview In industrial automation, Modbus TCP has become the de facto standard protocol for higher-level systems…

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