Core Concept: From “Wiring Technician” to “System Architect” First, please change a core concept. An excellent PLC programmer is not just an “electrician” who follows wiring diagrams, but a “system architect” who oversees the entire project. They must ensure that every brick (bit logic) is placed correctly, and design the entire structure (automation system) with … Read more
Note that in the programming system of Siemens PLCs (especially TIA Portal), the more professional and accurate terms are Temporary Variables and Static Variables, which typically play the role of “intermediate variables.” The term “intermediate variable” is more of a functional description. Below, I will elaborate on its core concepts. — 1. Principle: The “Draft … Read more
Many beginners, after learning the basic instructions, still do not know where to start when faced with a real project. Today, we will outline a standardized process for a complete PLC project from scratch. Mastering this process will allow you to work methodically like an experienced engineer. Step 1: Deeply Understand Control Requirements (Sharpening the … Read more
Modular Programming Modular programming divides complex automation tasks into subtasks corresponding to technical functions in the production process, with each subtask corresponding to a subroutine called a “block”. The program is organized through mutual calls between blocks. This type of program is easy to modify, debug, and troubleshoot. The block structure significantly increases the organizational … Read more
1 What is the goto Statement? The goto statement is known as a jump statement in C language. It is used for an unconditional jump to another label, transferring control to another part of the program. The goto statement is generally used infrequently because it worsens the readability and complexity of the program.Syntax: Example of … Read more
I remember it very clearly; it was shortly after I started working with TIA Portal. I was diligently working on a small project, just a few motors for sequential control, and I thought I had a good grasp of the S7-1200. At that time, to save trouble, I stuffed all the data—whether it was the … Read more
Intermediate PLC Programming: Custom Data Types for Easier Management of Complex Structures! 🔥 Are you troubled by the pain points of traditional PLC data management? Is your PLC program difficult to maintain due to complex data structures? Are you overwhelmed by various erroneous address pointers during debugging? When facing multidimensional arrays and complex recipes, does … Read more
Chinese High-Speed Rail Goes Global – Achievements of the Railway Institute for the Future – Click the blue text above to follow the official WeChat account of the Academic Affairs Office of Xi’an Railway Technician College – 1. Introduction The C language is a computer programming language. It possesses the characteristics of both high-level languages … Read more
Search on WeChat Technical Training As a professional in the automation industry, you should have heard of structured programming to some extent. So, what is structured programming? It is the process of breaking down complex automation tasks into smaller, reusable sub-tasks that correspond to process functions, making it easier to handle and manage these complex … Read more