Click the blue text to follow! Old Li Talks Technology: PLC Fault Diagnosis Matters 1 Emergency Faults in the Workshop Hey Xiao Wang, do you remember that last week the injection molding machine in our workshop suddenly stopped? The production manager was in a panic, and when I went over, the operation screen was flashing … Read more
Vehicle Condition: A BMW 328i with a mileage of over 220,000 km. The engine experiences idle shaking, fluctuating RPM, and sometimes fails to accelerate, emitting black smoke at times. Fault Diagnosis: Using a BMW-specific diagnostic tool, three fault codes were retrieved: 16685 (Cylinder 1 Misfire) 16686 (Cylinder 2 Misfire) 16688 (Cylinder 4 Misfire) It was … Read more
Introduction In the field of industrial automation, Programmable Logic Controllers (PLCs) serve as core control devices, and their stable operation directly affects production efficiency and equipment safety. However, various failures are inevitable during long-term operation. Today, PHM has compiled information on common types of PLC failures, their causes, and quick handling methods, hoping to assist … Read more
Click to read👉If one day I stop repairing cars, what else can I do? A 2009 Buick Excelle sedan, equipped with a 1.6L engine and automatic transmission, has a mileage of 147,261 km and was brought in for repairs due to high water temperature. According to the owner, even when the car is not started, … Read more
Gift to Readers Conducting scientific research involves a profound system of thought, requiring researchers to be logical, meticulous, and earnest. However, effort alone is not enough; often leveraging resources is more important than sheer hard work. Additionally, one must have innovative and inspirational points that look up to the stars. It is recommended that readers … Read more
[Image] In the vast realm of the Linux kernel, performance optimization and fault diagnosis stand as two towering peaks, obstructing the path of developers. To scale these two heights, developers are constantly in search of powerful tools. Among them, perf is undoubtedly one of the most dazzling “artifacts.” When running a complex Linux system, have … Read more
It is common to encounter situations in industrial settings where devices have dozens of sensors and actuators, each requiring individual wiring to the PLC. This not only takes a long time to wire but also increases the chances of errors, making troubleshooting particularly challenging later on. Today, let’s discuss AS-Interface bus technology, a fieldbus solution … Read more
Screenshots of electronic books within the data collection The complete set of hardware data collection
Click on the blue text to follow us [PLC Fault Diagnosis] How to Quickly Troubleshoot Common Faults of Siemens S7-1200? 10 Practical Tips to Make You an Expert in Fault Diagnosis! The Siemens S7-1200 PLC is known for its stability and rich functionality, but even the best equipment can experience faults. This article shares 10 … Read more
Abstract In response to the limited fault diagnosis and performance monitoring capabilities of the satellite Power Control Unit (PCU), a test design was conducted on a certain satellite’s power control unit, establishing an on-orbit fault diagnosis and performance monitoring system based on Built-In Test (BIT) technology. The BIT consists of 3 simulation boards and 1 … Read more