Free Modbus Slave Simulator in the form of a standalone Windows app supporting Modbus RTU, TCP, UDP and ASCIIoverRTU protocols. The simulator does allow setting values before the connection is established as well as running multiple instances of the app at the same time. Also included are Linux and Mac OS X Mono versions.

Yet another modbus library for dotnet.

Standalone Windows app supporting Modbus RTU, TCP, UDP, RTUoverTCP, RTUoverUDP, ASCIIoverRTU, ASCIIoverTCP and ASCIIoverUDP protocols. It is designed to allow running multiple instances of the app at the same time, just use a different port. Also included are Linux and Mac OS X Mono versions.

A Modbus Communication Library for .NET 6+ and .NET Standard 2.0 Applications

modbus协议RTU调试程序，C#源码

Simulate Several Modbus Devices on a same network

Serial UART Controller for Raspberry pi Platform

Simple console apps to interface with modbus devices (.net core -> windows, linux, rpi). Useful for debugging a new device or setting up equipment. Used with CNC Chinese servo drives and VFD (Ecogoo / NFlixin 9100)