Tutorial: Modbus RTU Master Multi Slave – C# & VB.net

This video tutorial shows you the easy way to create a Modbus RTU/Serial Master application (using C# and VB.net on Visual Studio 2022) and read some Holding Registers from multiple Modbus RTU Slaves. 

The Modbus RTU/Serial Slave devices are simulated by ModbusHD application, you can get the app from this link:
https://hadiscada.blogspot.com/2021/05/modbushd-update-version-210.html
 
and the COM ports are emulated by Virtual Serial Port Emulator (VSPE), you can download from here:
http://www.eterlogic.com/Products.VSPE.html
 
Here are the timelines:
00:00 – Setup Modbus RTU Slave Simulator & Virtual Serial Port Emulator
00:57 – Start Modbus RTU Slave Simulator with 2 Slaves 
01:53 – C# Project
16:50 – VB.net Project

Thanks, and have a nice day!