The Modicon M262 is the first PLC launched by Schneider Electric aimed at the Industrial Internet of Things (IIoT), capable of connecting directly to cloud platforms via protocols such as MQTT and HTTP, with TLS network security encryption. The left side of the image below shows the traditional method of connecting PLCs to the cloud, … Read more
Introduction A communication debugging tool developed based on WPF, featuring a user-friendly interface and easy operation. It supports both Modbus and MQTT protocols, enabling debugging of various communication methods. Whether in industrial automation, smart home, or IoT fields, this tool can meet your needs. Additionally, the code is open source and modular, making it highly … Read more
In the previous issue, we introduced the publish and subscribe framework of MQTT: MQTT Publish and Subscribe Architecture The two most important roles are MQTT clients and MQTT brokers (intermediaries). Let’s quickly review these two core components: The publish/subscribe model decouples the client responsible for sending messages (the publisher) from the client responsible for receiving … Read more
Hello everyone! Today, let’s talk about how to connect Siemens PLCs in the workshop to the Internet of Things (IoT). The MQTT protocol (think of it as a “WeChat group” in the IoT world) is being used more and more in factories, and it’s essential to know how to work with it! After over a … Read more
IoT Data Platform: Building a Real-Time Monitoring System with MQTT and InfluxDB It was a sultry summer last year when our team took on a large factory’s equipment monitoring project. The outdated system used MySQL to store sensor data collected every 5 minutes, resulting in the database crashing when operations wanted to view real-time trends … Read more
Click the blue text Follow us 1. Core Analysis of MQTT Protocol (1) Essential Characteristics of Lightweight Communication Protocols MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model, built on top of the TCP/IP protocol. Its greatest advantage is that it can provide real-time and reliable messaging services for … Read more
Currently updated to the point where we can write a calculator [The interface can be seen at the end]. ① This tutorial is suitable for Recommended readers: Beginners in VS + QT. ② Prerequisite installation VS2019 or 2022 Community Edition (This is too simple, so I won’t write it here!) It is recommended to refer … Read more
![Qt/C++ Interview Notes [Quick Reference Four] — MVC Pattern in Qt](https://boardor.com/wp-content/uploads/2025/09/8651b4ff-37b1-414e-9407-89abebfff49f.jpg)
Click the topPublic Account to follow us~ In software development, design patterns are tools that help make code structure clearer, more maintainable, and extensible. The MVC (Model-View-Controller) pattern is one of the classic design patterns widely used in graphical user interface (GUI) applications. Qt, as a powerful cross-platform development framework, also adopts the MVC pattern … Read more
![[S7-1200]: MQTT Protocol Communication with Siemens PLC for IoT Environmental Monitoring](https://boardor.com/wp-content/uploads/2025/09/cdd622b0-b1d1-4555-935d-9a0233bda73f.jpg)
[S7-1200]: MQTT Protocol Communication with Siemens PLC for IoT Environmental Monitoring Application Overview Hello friends! Today I want to share an amazing project with you—using the Siemens S7-1200 PLC to achieve IoT environmental monitoring through the MQTT protocol! Imagine, your PLC not only controls the equipment in the factory but also uploads environmental data (such … Read more
Translator | Li RuiReviewer | Sun ShujuanThe data created by humans on the internet and computers is not always accurate; human typing, scanning, photographing, or recording is not always reliable. But what if there are sensors on machines that collect data and can communicate with other machines? What if there is a protocol that allows … Read more