Free and powerful Modbus utility

Professional Modbus Master (Client) supporting both Modbus-TCP and Modbus-RTU protocols

Download View on GitHub

Features

Support for all standard Modbus functions: Read/Write Coils, Discrete Inputs, Holding Registers, Input Registers

Built-in Modbus device scanner with support for RTU, TCP and RTU over TCP protocols

Comprehensive logging of all Modbus communication with message parsing capabilities

Send custom Modbus messages for advanced testing and debugging scenarios

Full support for both Modbus-TCP (Ethernet) and Modbus-RTU (Serial) protocols

Available for Windows and Linux with native performance on both platforms

Get the latest version for your platform

Qt6 package

sudo apt install ./qt6-omodscan_1.13.1-1_amd64.deb

Qt5 package

sudo apt install ./qt5-omodscan_1.13.1-1_amd64.deb

Qt6 package

sudo apt remove qt6-omodscan

Qt5 package

sudo apt remove qt5-omodscan

sudo dnf install ./qt6-omodscan_1.13.1-1.x86_64.rpm

Import public key and install

sudo rpm --import qt6-omodscan.rpm.pubkey

sudo zypper install ./qt6-omodscan_1.13.1-1.x86_64.rpm

Run as root user

apt-get install ./qt6-omodscan_1.13.1-1.x86_64.rpm

sudo dnf remove qt6-omodscan

sudo zypper remove qt6-omodscan

Run as root user

apt-get remove qt6-omodscan

flatpak remote-add --user --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

flatpak install --user io.github.sanny32.omodscan.flatpak

For serial port connections, add the user to the dialout group, then log in again or reboot

sudo usermod -a -G dialout $USER

flatpak uninstall --user io.github.sanny32.omodscan

OpenModScan is open source and can be built from source code. Visit the GitHub repository for build instructions.