Click the blue text to follow us In today’s wave of industrial intelligence, PLC (Programmable Logic Controller) plays a crucial role as a core tool in the field of industrial automation. Through PLC programming, industrial production lines can achieve intelligent and precise control, thereby improving production efficiency, reducing costs, and realizing the goal of intelligent … Read more
With the introduction of Industry 4.0 and the corresponding national policies, the fourth industrial revolution, led by intelligent manufacturing, is approaching. Meanwhile, the rapid development of artificial intelligence (AI) further promotes the automation, intelligence, and widespread application of industrial control. Industrial motion control, as an important branch of industrial control, holds a significant position in … Read more
In recent years, security incidents involving industrial control systems have been frequent, and there is a lack of effective quantitative risk assessment methods domestically. To address this issue, a quantitative assessment method for industrial control system security based on the combination of fuzzy analytic hierarchy process and attack tree models is proposed. This method establishes … Read more
Click on the above “China Information Security” to subscribe ■ China Information Security Evaluation Center / Gao Yang, Zheng Dongji Due to the globally interconnected nature of cyberspace, various cybercrimes targeting individuals and enterprises have surged in recent years, and critical national industrial infrastructure is also facing real threats from hacker organizations, terrorist forces, and … Read more
1. Japan FANUC CNC System FANUC Corporation from Japan is currently the strongest company in the world in terms of research, design, manufacturing, and sales of CNC systems, with a total of 4549 employees (as of September 2005), including 1500 researchers and designers. (1) The highly reliable PowerMate 0 series is used to control small … Read more
Analysis of Assembly Errors in Microcontroller Assembly Language Currently, there are two different standards for the instruction format of assembly language: Assembly languages on Windows generally follow Intel-style syntax, such as MASM and NASM; whereas assembly languages on Unix/Linux generally follow AT&T-style syntax; 1. General Format of Assembly Language Statements [Name[:]] Opcode [First Operand][,Second Operand] … Read more
The PLC Instruction List (IL) and assembly language have significant differences in programming. Here is a detailed comparison of the two: 1. Definition and Use• PLC Instruction List (IL): • It is a commonly used text-based programming language in PLC (Programmable Logic Controller) programming. • It represents control programs in a list of instructions similar … Read more
As a programmer, what was the first programming language you encountered and learned? According to the “2021-2022 China Developer Survey Report,” the long-established assembly language is the most disliked programming language among programmers (37%), followed by C++ (17%) and C (16%). As a machine-oriented programming language, assembly language is indeed very precise, but it is … Read more
Recently, I have seen many analyses about uboot, and to run C language, it is necessary to prepare the stack. In the Uboot’s start.S assembly code, regarding system initialization, I also saw the action of initializing the stack pointer. However, I have only seen people say that system initialization requires initializing the stack, that is, … Read more
In the early days of programming, most applications were partially or entirely written in assembly language. They had to adapt to small memory and run efficiently on slow processors. As memory capacity increased and processor speeds rapidly improved, programs became increasingly complex. Programmers also turned to high-level languages such as C, FORTRAN, COBOL, which offered … Read more