melsec

A very popular industrial Internet of Things communication plug-in. Using this dll can be very convenient, stable, and fast to obtain data from PLC equipment of multiple brands, and also supports redis, mqtt, websocket, etc., which can let your data on the network Free transmission, reducing enterprise development costs.

物联大师是开源免费的物联网平台，集成了标准Modbus和主流PLC等多种协议，支持数据采集、公式计算、定时控制、自动控制、异常报警、流量监控、Web组态、远程调试等功能，适用于大部分物联网和工业互联网应用场景。

McpX is a library for communicating with Mitsubishi Electric PLCs using the MC protocol. It features a simple and easy-to-use API, allowing you to communicate without worrying about MC protocol details. It runs on various platforms, including Linux, Windows, and macOS.

Internet of things data acquisition platform

Native Go implementation of PLC protocols for iot-master and others. Visit github.com/zgwit/iot-master

Python3 Implementation of MELSEC Communication

Python connector for low-level Mitsubishi PLC MELSEC FX series (FX-232AW) serial protocol with builtin HTTP server.

A java library which implements MELSEC Communication protocol (QnA compatible 3E Binary).

三菱製ライブラリMX Componentを手軽に利用する為のラッパークラス

PLC simulators.

High-performance, strictly typed Python client for Mitsubishi SLMP (Seamless Message Protocol). Supports Binary 3E/4E frames for iQ-R, iQ-F, and Q series PLCs.

三菱 PLC 编程与工程助手。 MCP server and AI workbench for Mitsubishi PLC programming with GX Works2. Generate Ladder and Structured Text, edit native FBD, and review versioned projects with CPU-aware RAG and diagnostics.

Modern .NET client for Mitsubishi SLMP. Optimized for iQ-R and Q series via Binary 3E/4E communication.

mcpx-mcp-server is an MCP server that allows generative AI to access Mitsubishi PLC devices in real time.

mcpxpy is a Python wrapper for McpX, a .NET library for communicating with Mitsubishi Electric PLCs using the MC protocol.

実設備なしでPLCのPID・ON/OFF制御を試せるWindows用プロセスシミュレータ。温度・液面・流量・圧力・回転数のモデルを搭載し、MELSEC SLMP／GX Simulator 3に対応。

MC Protocol(MELSEC Communication Protocol) for Mistubishi PLC implementation in Python

A collection of Wireshark dissectors for analyzing Mitsubishi industrial communication protocols. Currently includes a MELSOFT protocol dissector for PLC data exchange analysis, with plans to add MELSEC and SLMP protocol dissectors in the future.

Agent 的 PLC 驱动层 — Modbus / FINS / MELSEC / Siemens S7comm 的 MCP Server: 协议自动识别、读写、透明代理、故障诊断

Industrial device communication protocols in Node.js (@digta/*) and Go — Modbus, Omron FINS, Mitsubishi MC, Atlas Copco Open Protocol. Monorepo (npm workspaces + Go module). Not related to protobuf tooling.