1. What Is PLC? The International Electrotechnical Commission (IEC) defines PLC as: A programmable logic controller is an electronic system that performs digital operations and is designed for applications in industrial environments. It uses programmable memory to store instructions for executing logic operations, sequential control, timing, counting, and arithmetic operations, and controls various types of … Read more
Search on WeChat Jicheng Training If you’ve had any experience with PLC programming, you’ve probably heard terms like self-locking, interlocking, and mutual locking. These are typical fundamental programming steps in PLC programming that we must master. Below, I will share several of the most classic small programs. 1. Self-Locking (Start-Stop Control) Self-locking requires a normally … Read more
1. Used for Discrete Control The ability of PLC to control discrete signals is very strong. The number of input and output points can range from a few dozen to several hundred, even thousands or tens of thousands. Because it can be networked, the number of points is almost unlimited, and it can control any … Read more
The basic working method of a PLC is to sequentially execute the user program, executing one instruction per clock cycle. There are generally two types of execution for the user program: cyclic scanning and timed scanning. The scanning process is divided into three stages: input sampling stage, program execution stage, and output refresh stage, as … Read more
Today, I will share with you the content about PLC, giving you a simple introduction to PLC. I will briefly introduce the following five points. 1. First, let’s talk about what a control system and a controller are. Whether in the industrial field or in real life, such as air conditioners, humidifiers, refrigerators, elevators, or … Read more
Search on WeChat Technical Training Did you know that any complex engineering application consists of several basic programming steps? Therefore, we must master the basic programming steps and some typical basic control designs. Today’s article introduces the most basic controls of the PLC control system, including initialization control, fault control, output prohibition control upon power … Read more
Before understanding the PLC control cabinet, we need to grasp a few requirements. 01 Wiring according to the diagram is the highest principle. First, before wiring, you must carefully read the drawings and fully understand the designer’s intentions, rather than relying on personal so-called rich experience. If there are unclear or contradictory points, you should … Read more
Today, I have gathered some ideas and methods on how to master PLC programming. I hope that after accepting this recommendation, everyone can have a general learning approach to PLC programming and independently apply PLCs to complete programming. 1. Basic Hardware Knowledge Before programming, it’s essential to understand some basic hardware knowledge. It’s best to … Read more
Everyone knows that industrial production and technological development are inseparable from the automation control of PLCs. PLC can be broadly understood as: a centralized relay extension control cabinet. In practical production applications, PLC greatly reduces the cost of industrial control and enhances the centralized management and automatic control of equipment. To learn PLC well, it … Read more
Search on WeChat Technical Training Before selecting a PLC, we must first determine the system plan. Once that is established, we can choose the manufacturer and model. Do you know how to make these selections? This article provides detailed introductions from manufacturers and models to input/output (I/O) points, control functions, etc., helping you choose the … Read more