In the field of industrial automation, being able to write a PLC program that makes equipment operate is just the beginning. However, being able to write an excellent program that is stable, efficient, and easy to maintain is the key to distinguishing an ordinary electrician from a programming expert. So, what are the characteristics of … Read more
The Design Requirements for a Perfect PLC Program A complete PLC program is not just about making the system operational; it also requires comprehensive comments, excellent architecture, good scalability, a complete alarm protection system, and a simulation system before operation. 1. Simplicity Keep the PLC program as simple as possible. Simplicity means using standardized program … Read more
1. C++ Handling of Function Hiding/Deletion In early C++ development, for practical reasons, some functions might be hidden. For example, in certain cases, it may be necessary to prohibit constructors or copy constructors, which can be handled by moving them to private functions. This effectively disables the external interface. However, with the C++11 standard, the … Read more
As a software developer, it is inevitable to read others’ code, which involves the programming standards of a language. Although standards are not strict requirements of the language itself, they have become conventions among users of each language. Code written according to programming standards at least provides a pleasant reading experience, especially for those with … Read more
In the long history of programming languages, C++ occupies an irreplaceable position with its efficiency, flexibility, and powerful features. From system development to game engines, from embedded devices to high-performance computing, C++ is ubiquitous. This article systematically reviews the evolution of C++ standards, the technical characteristics of implementation vendors, the intrinsic relationship between standards and … Read more
The Design Requirements for a Perfect PLC Program A complete PLC program is not just about making the system operational; it also requires comprehensive comments, excellent architecture, good scalability, a complete alarm protection system, and a simulation system before operation. 1. Simplicity Make the PLC program as simple as possible. Simplicity means using standardized program … Read more
A good PLC program typically needs to possess the following characteristics: simplicity, readability, correctness, reliability, ease of modification, extensibility, a complete alarm system, and convenient program simulation. Although these characteristics may manifest differently across various industries and processes, their core ideas remain the same. Today, we will discuss PLC programming standards! 1. Simplicity Make the … Read more
It is said that Siemens, Schneider, and ABB are the three major high-end PLC brands. So, what are the key dimensions that define the “high-end” positioning of high-end PLCs? Is it their exceptional adaptability under extreme conditions? Is it their powerful processing speed and precise control performance? Or is it simply reflected in the high … Read more
01Introduction: In the previous article, we discussed three keywords in C language. Liu thought about it and wondered what other keywords exist in C language. After gathering some information, the summary is as follows, based on different standards. 02C89/C90 Standard (32 Keywords) Data Types Control Flow Storage Classes Others <span>int</span> <span>if</span> <span>auto</span> <span>sizeof</span> <span>char</span> <span>else</span> … Read more
File Operation Standards in C Language: Safety and Efficiency In the C language, file operations are a very important topic. Whether it is reading data, writing logs, or handling configuration files, mastering the basic standards of file operations is crucial for writing safe and efficient programs. This article will detail file operations in C, including … Read more