The programming language for PLC software has distinct characteristics compared to general computer languages. It is neither a high-level language nor a typical assembly language, and it must meet the requirements for ease of writing and debugging. Early PLCs supported only ladder diagram programming language and instruction list programming language. According to the International Electrotechnical … Read more
There are currently 5 standard programming languages for PLCs, including graphical and textual programming languages. Graphical programming languages include: Ladder Diagram (LD); Function Block Diagram (FBD); Sequential Function Chart (SFC). Textual programming languages include: Instruction List (IL) & Structured Text (ST). IEC 1131-3 programming languages are a set of international programming language standards for industrial … 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
Search on WeChat Tech Training A complete PLC program is not just about getting the system to run; it also requires comprehensive comments, excellent architecture, good scalability, a complete alarm protection system, and a simulation system before operation. Today, I will share several PLC examples for reference! 1. PLC Example – Traffic Light 1. Traffic … Read more
Search on WeChat Technical Training 1. Bidirectional Movement of the Cart Use S7-200 to achieve automatic control of the cart’s bidirectional movement. The control process involves pressing the start button, causing the cart to move from left to right (or right to left). When it reaches the right (or left) limit switch, the cart automatically … Read more
Hello everyone, I am your PLC teacher, Dog Brother. Today we will talk about the status word and control word in Siemens PLC. These two "words" are important roles in PLC programming! They act like the "eyes" and "hands" of the PLC, helping us monitor and control the operation state of the PLC. Mastering them … Read more
Today, let’s talk about some practical tips for PLC ladder diagram programming. Whether you are a beginner or an experienced professional, these tips will help you write clearer and more efficient PLC programs. Basic Structure of Ladder Diagrams A ladder diagram, as the name suggests, looks like a ladder. The left side represents the power … Read more
Click the blue text to follow us How to Achieve Sequential Control with PLC? A Beginner’s Guide In industrial automation, sequential control is a very common task, such as product assembly on an assembly line or multi-step operation control of packaging machines. Today we will discuss how to achieve sequential control using PLC, guiding you … Read more
Click the blue text to follow us Hello everyone, I am XXX. Today we are going to talk about the profound and practical topic of PLC programming. PLC is the core of industrial automation; mastering it is like equipping a factory with a “brain.” We will start from the basic concepts and gradually delve into … Read more
Click the blue words to follow us The Siemens PLC is a major player in the field of industrial automation, but those new to it may find it complex and difficult to understand. Don’t worry, today we will unveil the mystery of Siemens PLC and learn how to design an efficient automation solution with it! … Read more