Chapter 1: Introduction to PLC What is PLC? In simple terms, a PLC (Programmable Logic Controller) is a computer used for industrial automation control. It can control and monitor various industrial devices according to pre-written programs. Components of PLC: It mainly includes the CPU (Central Processing Unit), input modules, output modules, power supply modules, and … Read more
PLC (Programmable Logic Controller) programming is one of the core skills in the field of industrial automation. For beginners, mastering the basic logic of programming and gradually accumulating experience is key to improving programming skills. This article will start with the simplest momentary control and gradually introduce basic programs such as self-locking and interlocking, helping … Read more
In industrial automation, the PLC (Programmable Logic Controller) plays an indispensable role. It acts like the brain of industrial equipment, responsible for controlling and managing various mechanical actions and processes. This article focuses on typical applications of PLC in industrial automation, using real cases to help you understand the core functions, implementation methods, and common … Read more
Hello everyone! Today, let’s talk about the optimization techniques and best practices in Siemens PLC programming. Whether you’re new to PLCs or have written some programs before, I believe this article will inspire you. Optimizing PLC programs not only improves operational efficiency but also makes the programs easier to maintain, reducing debugging hassles later on. … Read more
Basics of PLC Analog Signal Processing: Making Data “Speak” Hello everyone, I am Ouyang. Today, let’s talk about analog signal processing in PLCs. In automation control, analog signals act like the “senses” of devices, helping us accurately perceive and control various physical quantities. Mastering analog signal processing will make your PLC programs more flexible and … Read more
Hello everyone, I am Lao Wang, an experienced engineer in the automation industry. Today, let’s talk about PLCs, which are the core of the automation field, just as important as the light switch in our homes. However, instead of controlling a simple light bulb, it controls various complex industrial devices. The goal of this article … Read more
Hello everyone! I’m Lao Wang, an experienced engineer who has been in the automation industry for many years. Today, let’s talk about PLC, the ‘big boss’ in the field of automation. Many beginners find PLC mysterious, but once you grasp the method, it’s much simpler than you think! In this article, I will guide you … Read more
Hello everyone! I am Lao Wang, an experienced programmer in the automation industry. Today, let’s talk about PLCs. Although they look complicated, getting started is not difficult. I will guide you from zero knowledge to hands-on experience in the most straightforward way! I guarantee that after learning, you will be able to roll up your … Read more
The PLC control circuit for the cement mixer is shown in the figure. This article only presents the control circuit diagram and ladder diagram of the PLC. The main circuit controls the operation of the water pump, material pump, and mixing pump with overload protection through a variable frequency drive. The water pump is a … Read more
PLC Control System Schematic unset unsetOpening Introductionunsetunset Hello everyone, I am Dou Dou! Today we are going to open the magic box of the PLC world. Imagine the robotic arms in factories can precisely grab parts, and automatic doors can sense pedestrians to open and close. All these magical operations are silently commanded by PLCs. … Read more