AdvancedHmi is a free and “almost open-source” HMI framework written in VB.Net that offer some drivers for PLCs, and also offer free SCADA objects for winforms users. I say “almost open-source” because the code of the two main libraries is not provided (MfgControl.AdvancedHMI.Drivers.dll and MfgControl.AdvancedHMI.Controls.dll), but it’s provided how to ...

Teleassistance and remote control are becoming more and more popular, especially when the downtime cost is high, due to the need of specialistic help on how to solve failures that are not easy to find out. The capability to grant an immediate and specialistic assistance is a must-have for automatic ...

A common task in the world of automation is to convert PLC programs from one platform to another. The reasons for this conversions can be different, like standardization of PLCs used by a factory, customers that asks for a specific PLC and so on. To convert a program from Siemens ...

In this post you will find how to use nModbus with C# and how to create a simulation enviroment to test your program with Modbus. Other useful resources that you can find in this post are: using a Modbus simulator Creating virtual Com ports Using sniffer tools to debug the ...

This tutorial that i found in a forum explains how to communicate between 2 Controllogix using the produced and consumed tags. This doesn’t require the Allen Bradley messages instructions and it’s much more efficient.