Inter-process Communication with Qt

The Mastering Modbus Communication series follows on from Introducing Inter-Process Communication, presented by David Faure. In it, we explore how to bridge the gap between software and hardware using Qt's powerful communication modules.

In this first video in the series, Christoph Schleifenbaum shows you how to use the Qt Serial Bus module to communicate with devices using the Modbus protocol. Whether you are working in industrial automation or home energy management, understanding how to read and write to device registers is a fundamental skill.

• We walk through a real-world example using an EV charger, covering:
• An introduction to the Modbus protocol (TCP/IP and Serial).
• Setting up the QModbusClient to connect to hardware.
• How to structure your code to read holding registers and send write requests.
• A brief look at implementing a Modbus server to simulate device behavior.

Chapters

00:00 Intro

03:38 QModbusClient

11:45 QModbusServer

13:37 Conclusion

Links

You can find the code for this video here

All "Inter-Process Communication with Qt" videos

All "Inter-Process Communication with Qt: Mastering Modbus Communication" videos