“PLC Network Optimization: Three Tricks to Perfect Network Structure for Smooth Data Transmission!” Hello everyone! Are you still going crazy over PLC networks lagging like a PowerPoint presentation? Every time there’s a data delay, it feels like waiting for takeout? Today, we are going to tackle this “network speed anxiety” in the industrial sector! ▶ … Read more
When the trigger signal state changes from OFF to ON, the DF instruction is executed, and the output is only activated for one scan cycle. When the trigger signal state changes from ON to OFF, the DFI instruction is executed, and the output is only activated for one scan cycle. If the execution condition is … Read more
The editor has shared an article titled “Where Does the Greatest Sense of Achievement Come from as an Electrical Engineer?” which has garnered much attention from netizens. Today, we are sharing another article by Teacher Zhang, discussing the topic of “How to Learn PLC” in hopes that everyone can find inspiration from it. PLC is … Read more
Industrial control systems sound impressive, but in reality, they are just a combination of hardware and software aimed at making machines operate according to our intentions. Whenever networks are involved, security issues are always present. Stop clinging to the “five-layer architecture”; today we will explore how many security vulnerabilities are hidden within these seemingly robust … Read more
DIY Smart Garage Door Control: A PLC Beginner Project You Can Complete Over the Weekend Do you remember those scenes in sci-fi movies where the protagonist just presses a button and the garage door opens automatically? Today, I will teach you how to create your own smart garage door control system using a PLC, and … 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
After introducing the content related to OPC UA communication, we have basically covered the main communication buses and protocols related to industrial automation. So, why have we focused on communication for nearly two years? Of course, for PLC/PAC engineers, or for electrical engineers or automation engineers, the core is not just communication; there are also … Read more
Application of Encryption Algorithms in PLCs: Protecting Intellectual Property and Data Security Introduction: New Security Challenges in Industrial Control Systems With the advancement of Industry 4.0, PLC systems are increasingly connected to enterprise networks and even the internet. This connectivity enhances efficiency but also brings unprecedented security risks to the systems. In a automotive parts … Read more
Hello everyone, I am an engineer with over ten years of experience in industrial automation, and I particularly enjoy tinkering with various DIY projects. Today, I would like to share an interesting project I recently completed – a smart home control system built with the Siemens S7-1200 PLC. I believe many friends want to make … Read more
The implementation of the IoT gateway enables seamless connection between PLC and the cloud, enhancing production efficiency and remote monitoring capabilities, which is a core technological support for Industry 4.0. 1. Communication Network Architecture 1.1. Fieldbus Selection In the IoT gateway control system, selecting the appropriate fieldbus is crucial. For Siemens PLC systems, commonly used … Read more