modbus-tool

ModbusTools are cross-platform (Windows, Linux) GUI simulators (client/server) that support TCP, UDP, RTU, ASCII, RTU/ASCII over TCP/UDP Modbus protocol types.

Free open-source Modbus client (master) GUI and server simulator for Windows, macOS and Linux. Desktop tool for Modbus TCP, RTU and RTU over TCP. A modern alternative to Modbus Poll and QModMaster.

Cross-platform Modbus TCP/RTU debug client (PySide6): register table with polling, live graphs, bus scanner, alarms, device templates, expressions. EN/RU UI.

Modbus RTU/TCP test tool for Windows