Resilient Design of S7-1200 Industrial Control Systems: Multi-Level Defense and Self-Recovery Mechanisms from Fail-Safe to Fault Tolerance

Resilient Design of S7-1200 Industrial Control Systems: Multi-Level Defense and Self-Recovery Mechanisms from Fail-Safe to Fault Tolerance

Industrial control systems are like a ship sailing in a storm; they must not only navigate normally but also remain “afloat” in the face of various unexpected events. Resilient design equips the S7-1200 with a “life jacket”, “autopilot”, and “emergency generator”, allowing the system to not only “fail safely” in the event of a fault … Read more

Unstable Communication? A Step-by-Step Guide to PLC Network Troubleshooting Techniques

Unstable Communication? A Step-by-Step Guide to PLC Network Troubleshooting Techniques

Hello everyone, I am Xiao Zhi. Recently, I have received many messages from friends asking about communication issues, so today we will discuss PLC network faults. A few months ago, I went to a beverage factory to resolve a communication fault, and the project manager was so anxious that he was wringing his hands: “Lao … Read more

He Bo: Establishing a System Stability Assurance System Centered on Chaos Engineering

He Bo: Establishing a System Stability Assurance System Centered on Chaos Engineering

Director of the Financial Technology Committee of Zhongtai Securities Co., Ltd. and General Manager of Technology R&D Department, He Bo Background Analysis With the rapid development of the financial industry, the demand for business is constantly increasing, and the speed of product iteration is accelerating, leading to larger system scales. The traditional monolithic architecture model … Read more

Embedded Testing: Key to Ensuring System Stability and Reliability

Embedded Testing: Key to Ensuring System Stability and Reliability

The overall steps of embedded software testing are complex and interlinked. From porting the operating system and writing low-level system drivers to system platform testing, then testing software modules, followed by integration testing, and finally system testing, a comprehensive check of various aspects such as functionality, performance, and interfaces of the entire system is conducted. … Read more

Common Fault Tolerance Designs in Embedded Code

Common Fault Tolerance Designs in Embedded Code

If a large embedded project does not implement fault tolerance design, can you imagine what the consequences would be? Experienced friends can certainly think of countless bugs in such projects, and some bugs are very difficult to trace. Today, let’s discuss some common fault tolerance design methods in embedded code. Using Assertions (Assert) What is … Read more

An Overview of Fault Injection

An Overview of Fault Injection

Future丨Intelligence丨Nutrition丨Energy Let reading become a habit, let the soul have warmth An Overview of Fault Injection 1. Introduction to Fault Injection In the field of computer science, Fault Injection is a controlled method of injecting faults into computer systems to simulate their responses under real fault conditions. It is widely used in software testing, fault … Read more