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ModbusKing

Product information "ModbusKing"

🔧 ModbusKing

Lightweight, cross-platform Modbus client for RTU & TCP – Simple, fast, reliable

Download Demo (Windows & Linux): https://demo.vibecodesoft.com


🧭 Overview

ModbusKing is a user-friendly and efficient Modbus client for developers, technicians, and industrial environments.

The software supports both Modbus RTU (serial) and Modbus TCP and allows reading, writing, and monitoring of registers and coils in real time. Ideal for testing, diagnostics, development, lab setups, and industrial systems.


🚀 Key Features

  • Modbus RTU & TCP
    Connect via serial interfaces (RTU) or network (TCP/IP).

  • Register and Coil Queries

    • Read: Coils, Input Coils, Holding Registers, Input Registers
    • Write: Single or multiple registers/bits
    • Scan register ranges
  • Real-time Monitoring
    Direct display of returned values with no delay.

  • Debug Logging

    • Visible TX/RX frames
    • Log to file
  • Save & Load Configuration
    Useful for repeated device tests or customer projects.

  • Cross-Platform GUI
    Modern GTK 4 interface – runs on Linux & Windows.


🪛 Use Cases

  • Industrial automation
  • Development & debugging of Modbus devices
  • Laboratory and testing environments
  • Fast troubleshooting in the field
  • Modbus training & workshops

🔍 Open-Source Components

  • GTK 4 – GNU LGPL v2.1
  • libmodbus – GNU LGPL v2.1

These libraries are used unmodified and distributed under their respective licenses.


📄 License

© 2026 Bickert Web & Design – All rights reserved.
This software is proprietary. Copying, modifying, redistribution, or reverse-engineering is prohibited without written permission.


⚙️ Installation & Usage

Linux – Quickstart

  1. Extract ModbusKing-Linux
  2. Add your user to the dialout group:
    sudo usermod -aG dialout $USER
  3. Make the application executable:
    chmod +x ModbusKing
  4. Optional: Install app + icon:
    ./install_app_and_logo.sh

The following will be installed:

  • /usr/local/bin/ModbusKing
  • /usr/share/icons/hicolor/512x512/apps/ModbusKing.png
  • /usr/share/applications/ModbusKing.desktop

After installation, ModbusKing will appear in your applications menu.

Windows – Quickstart

  1. Extract ModbusKing-Windows
  2. Run ModbusKing.exe

🧩 Technical Details

ModbusKing enables scan operations, precise query intervals, error detection, logging, and clear visualization of raw frames (hex dumps) to diagnose communication issues quickly.


🪄 Getting Started

  • Download the package
  • Run ModbusKing
  • Configure RTU port or TCP IP
  • Read / write registers
  • Activate real-time monitoring

ModbusKing
Test Modbus – fast, clear, reliable.