With the rapid development of industrial technology, distributed control systems and fieldbus control systems have emerged one after another. In some industries, some people believe that FCS is developed from PLC, while others believe that FCS is developed from DCS. There is a close connection between FCS, PLC, and DCS, yet there are essential differences. … Read more
Industrial Control Systems (ICS), as the “nerve center” of national critical infrastructure, directly relate to national economic security, social stability, and the safety of people’s lives and property. However, with the acceleration of digital transformation, the information security threats faced by ICS are becoming increasingly severe. Today, we will delve into the key standards of … Read more
On January 7, MITRE released the ATT&CK for ICS knowledge base, which mainly introduces the strategies and techniques used by cyber attackers when targeting industrial control systems (ICS), providing a reference for critical infrastructure and other organizations using industrial control systems to assess network risks. Why ICS? First, what is an industrial control system? It … Read more
Abstract Due to aging infrastructure, lack of security planning and design, and insufficient focus on protecting Industrial Control System (ICS) assets, the threats facing ICS networks remain high. The threats facing the infrastructure of Industrial Control System (ICS) networks are continuously increasing, and their complexity is greater than ever before. The increase in both the … Read more
Industrial network communication relies on switching and routing. Today, we will use Siemens PLC to configure industrial network switching and routing management, while discussing common issues and optimization solutions. Project Requirements and Common Issues Industrial networks need to ensure that devices such as PLCs, HMIs, inverters, and IO modules can communicate with each other, while … Read more
As a veteran in industrial control with over ten years of experience, I often see many beginners struggling to understand function blocks in PLC programming. Today, I will systematically walk you through the most commonly used function blocks in PLCs. Mastering these basic function blocks will enable you to handle about 80% of industrial control … Read more
In industrial control, many devices have a certain sequence of actions, such as the handling of objects by robotic arms, sorting and packaging of workpieces on assembly lines, and process control on installation machinery. These actions are carried out step by step, and their workflow diagrams can be easily drawn. The automatic processing of workpieces … Read more
1. Protocol Reverse Engineering Record (Wireshark Capture Code) # Wireshark filter rule (key fields marked in red)tcp.port == 102 && cotp && s7comm /* Typical handshake message structure 0000 03 00 00 16 11 e0 [TSAP:0x0100] [TSAP:0x0101] 00 00 00 01 00 c0 01 0a |_________| |___| |_____________| |_____________| |_TPKT_| |_COTP_| |S7C| */ #pragma pack(1) … Read more
Follow our public account, click the top right corner of the public account homepage “ · · · ” to set a star mark and get real-time updates on the latest information Source: PLC Enthusiast Today, we will explain the three methods for PLC control of servo motors: 1. Torque Control 2. Position Control 3. … Read more
How to Perfectly Combine Siemens PLC with Real-Time Database? Unveiling the Core Technology of High-Speed Data Processing to Support Industrial Big Data Applications! Hello everyone, I am Hanhan! Today we will discuss the “super combination” in the industrial field— the perfect combination of Siemens PLC and real-time databases. This duo is like the “Superhero Alliance” … Read more