PLC Performance Analysis: Execution Time Monitoring and Program Efficiency Quantification! Introduction Hello everyone! Today I want to share a topic that is often overlooked but extremely important in PLC programming — execution time monitoring and program efficiency evaluation.Did you know? An optimized PLC program can save more than 30% of cycle time! This is not … Read more
Optimizing Performance Design Patterns for Object-Oriented Programming in PLC Factory Informatization Yesterday, a new device arrived in the workshop, and Old Zhang complained, “This PLC program is too messy; changing one part affects the whole system!” This is not an isolated case. As the level of automation in factories increases, the traditional PLC ladder diagram … Read more
Click the blue text to follow! Master Li Talks About PLC Function Blocks in Smart Homes A few days ago, Xiao Wang came to my house and was amazed to see that I could control the lights, curtains, and air conditioning with my phone, his jaw almost dropped. “Master, how much does this cost?” I … Read more
(Source: Internet, for reference only. Please feel free to add any corrections or missing parts in the comments) Scan to follow the public accountLet’s communicate and learn together Recommended Reading: Essential for PLC Programming:Analog Quantity Calculation, Detailed Explanation with Practical Cases, Easy to Understand! Highly Recommended by Electrical Engineers:Learn to use these tools, a monthly … Read more
Click the blue text to follow! Old Li Talks Technology: PLC Programming Insights for Quick Mastery by Beginners 1 The Lesson from an Emergency Repair Last month, the injection molding workshop managed by Xiao Wang suddenly stopped production. I received a call and rushed over to find the entire production line paralyzed. The factory manager … Read more
1 Introduction PLCs have many instructions, but in actual projects, you may only use about 60% of them, or even less. The key to learning PLCs is not just to learn these instructions, but to understand how to use them to design control programs and debug projects. Many beginners learn a lot of instructions when … Read more
Over the years, I have seen too many on-site programs, especially in the area of PLC sequential control, where the choice of variable types is poor, leading to numerous pitfalls. A few days ago, I went to a food factory to troubleshoot, and the program almost drove me crazy. They used a bunch of BOOL … Read more
Data types can be simple or complex, and many engineers have encountered issues due to data type mishaps, which is countless. Today, I want to casually discuss this topic, especially since I recently encountered a novice who didn’t understand the difference between INT and DINT, which made me so frustrated that I snatched the keyboard … Read more
Click↑↑for technical training, follow and pin to subscribe for free long-term 180,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos This article presents commonly used examples for beginners in PLC programming control, serving as a reference to shorten the learning curve and enhance mastery of PLC. The knowledge points … Read more
I remember when I first started in the industry, I took over a PLC program left by a former colleague, and it was a complete mess! There were no comments, variable names were arbitrary, and the program structure was chaotic. It took me three whole days to understand this program. This is why today I … Read more