As one of the types of industrial control systems, Distributed Control Systems (DCS) are widely used to control critical infrastructure, distributed in the oil, chemical, metallurgy, cement, and water systems, serving as the “brain” for process operators. Their importance is self-evident. In the mid-1970s, decentralized control systems based on microprocessors emerged. After more than 30 … Read more
Notice on Issuing the “Industrial Control System Information Security Protection Guidelines” Ministry of Industry and Information Technology Document No. 338, 2016 In order to implement the “Guiding Opinions of the State Council on Deepening the Integration of Manufacturing and the Internet” (Guofa [2016] No. 28), and to ensure the information security of industrial control systems … Read more
Author | National Internet Emergency Center, Du Peng 1. Background and Current Situation As the degree of digitization and intelligence of industrial control systems continues to improve, the traditional closed and isolated industrial environment is being broken, and the network security risks it faces are becoming increasingly severe. On one hand, viruses in the traditional … Read more
1. Industrial Control Security Vulnerabilities Are a Type of Cybersecurity Vulnerability Currently, there is no exact definition of industrial control security vulnerabilities internationally or domestically, but there are relatively mature research results regarding the definition of cybersecurity vulnerabilities. For example, China’s national standard “Information Security Technology – Network Security Vulnerability Identification and Description Specification” (GB/T … Read more
Introduction Overview Industrial control systems, as the cornerstone of industrial production operations, play an indispensable role in ensuring the stability of enterprise operations, facilitating the smoothness of the supply chain, promoting healthy economic and social development, and safeguarding national security. To guide industrial enterprises in strengthening control security protection, the Ministry of Industry and Information … Read more
Traditional industrial control systems differ from the open systems of the Internet, being individual and closed. However, with the application of industrial internet platforms, more and more devices are connected to enterprise networks, leading to an increasing number of cybersecurity issues. Traditional methods based on network traffic have encountered difficulties in anomaly detection, challenges in … Read more
October Course Schedule As a type of industrial control computer, the PLC has a structure similar to that of a regular computer; however, due to different usage scenarios and purposes, there are some structural differences. Hardware Components of PLC The basic structural block diagram of the PLC hardware system is shown in the figure. In … Read more
Introduction PLC comes in various sizes, hence its control range can also vary. Smaller PLCs might only control a single device, or even a component at a site; larger ones can control multiple devices, an entire production line, or even an entire factory. It can be said that PLCs are indispensable in both large and … Read more
Anyone engaged in electrical work 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 actual production applications, PLC greatly saves industrial control costs and strengthens centralized management and automatic control of equipment. To learn PLC well, … Read more
Electrical Engineering Learning Network: https://www.dgdqw.com Technology drives the future, follow the official WeChat account of the Electrical Engineering Learning Network “Electrical Engineering Learning” to gain more experience and knowledge. Answer 1:PLC is an electronic device designed specifically for digital operation in industrial environments. It uses programmable memory to store instructions for performing logical operations, sequential … Read more