Click the blue text “ShipTechHelper” to follow us Don’t panic about engine failures, consult ShipTechHelper when in doubt Introduction During a voyage, the chief engineer received a call from the duty engineer in the engine room, reporting that the cylinder oil injector cooling water jacket at the upper left front of cylinder No. 4 (SULZER … Read more
1. Correct Use of the Multimeter To use the multimeter correctly, familiarize yourself with the dial before use. Adjust the two zero position regulators gently. Choose the correct terminals, ensuring the red and black probes are inserted into the right holes. Turn the switch to the correct range. Choose the appropriate measurement range for accurate … Read more
When an SD memory card fails to format, it may be due to write protection, file system corruption, virus infection, or hardware issues. Here are the detailed steps to resolve the problem: 1. Check the Physical Write Protection Switch 1. Locate the write protection switch on the side of the SD card (usually marked as … Read more
Click the blue text to follow! PLC Old Li Talks Technology: What’s So Difficult About PLCs? Discussing Those Pitfalls from a Practical Perspective Last week, Xiao Zhang rushed over to me, saying: “Old Li, the production line 3 has stopped again, the system is alarming, and I’ve been looking at it for a long time … Read more
Fundamentals of PLC Programming: A Beginner’s Guide to Data Types Author: Electric Guy | 15+ years of frontline engineering experience I’ve been asked a lot of questions about PLC data types by beginners, it’s really frustrating! Honestly, isn’t this just the most basic thing? Today’s electrical novices are really falling behind, they can’t even distinguish … 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
After two hours of on-site rush, I found that the PLC program just wouldn’t download! This was a common predicament I faced when I first started in the industry. If you are about to get into PLCs, make sure to get the “environment setup” right to avoid unnecessary detours. Today, let’s discuss the configuration and … Read more
Click the blue “Programmer DD” above and select “Add to Favorites” Reply with “Resources” to get exclusive learning materials! Source | 8rr.co/4zhkWhether in backend or frontend development, we all encounter different HTTP status codes. Some common status codes include: 200 – The server successfully returned the webpage 404 – The requested webpage does not exist … Read more
Have you ever pressed the power button and found yourself staring at a waterfall of code on the screen, feeling helpless? It’s like a car dashboard going haywire when the engine won’t start; the command line prompts during a Linux boot failure can often leave newcomers feeling overwhelmed. Today, we will dissect the ignition process … Read more
🔥 When you see the output of <span><span>ip a</span></span>, are you confused by the mysterious parameters like <span><span>LOOPBACK</span></span>, <span><span>fq_codel</span></span>, and <span><span>metric 100</span></span>? 🔥 This article uses real terminal output examples to analyze the meaning of each parameter line by line and reveals how to diagnose network issues using them!🚀 At the end of the article, … Read more