▼ Click the card below to follow me ▲ Click the card above to follow me Recently, while working on an automation upgrade at a beverage bottling plant, I found that many engineers still have numerous questions about Siemens PLCs. Today, let’s discuss the core knowledge of Siemens PLCs to help everyone quickly get started … Read more
Click the blue text to follow us How to quickly diagnose issues in control systems based on Siemens PLC? These diagnostic tools and methods will make your troubleshooting more efficient and precise! Hello everyone! I’m Hanhan. Today, let’s talk about a tough problem in industrial control systems—fault diagnosis. You know, a small fault can halt … Read more
In mid-May, “WannaCry” began to sweep the globe, affecting over 300,000 computers in more than 150 countries and regions within just a few days. The impact on key industries such as energy, electricity, transportation, healthcare, education, and manufacturing was shocking. Half a month has passed, and while the attacks seem to have subsided, the reality … Read more
↑ Click the “Servo and Motion Control” above to follow us With the rapid development of industrial technology, distributed control systems and fieldbus control systems have emerged. Some people in certain industries believe that FCS is developed from PLC, while others think FCS is derived from DCS. There are both close connections and essential differences … Read more
I remember when I first joined the industry, I took over a project to upgrade an injection molding machine. The communication between the inverter and the PLC was always intermittent. After several days of troubleshooting, I discovered that the grounding was not done correctly, which caused interference. Today, I will share my experiences and techniques … Read more
Industrial Control Systems (ICS) are the core support of modern industrial fields, encompassing various types of control systems, among which the Supervisory Control and Data Acquisition (SCADA) system, Distributed Control System (DCS), Programmable Logic Controller (PLC), and Fieldbus Control System (FCS) are the most critical. These systems are not only widely used in power, water … Read more
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 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
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