Click the blue text to follow! Old Li Talks About PLC Function Block Programming: Making Devices “Understand Each Other” A few days ago, Xiao Wang asked me: “Old Li, why can’t our new Siemens PLC connect with that Japanese Mitsubishi one? I followed the manual, but it seems like the devices can’t ‘understand’ each other.” … Read more
Click the blue text to follow! Quick Troubleshooting Design Patterns for Function Block Diagrams in PLC Process Control A few days ago, Xiao Zhang rushed over from the workshop, sweating profusely: “Old Li, the production line 3 has stopped again, and the system is indicating a function block error. The management is pushing hard, what … Read more
Click the blue text to follow! Simplified Maintenance Strategies for Smart Home Human-Machine Interface Design Using PLC Function Block Diagrams Last week, Xiao Zhang graduated from school and came to our factory for an internship. He was assigned to debug the human-machine interface of the smart home control system. After a whole day of work … 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
Hello everyone! Today, let’s talk about standard function blocks in PLCs. To be honest, many engineers have used PLCs for years but are still a bit confused about using standard function blocks. What a pity! These little blocks are the secret weapon to improve programming efficiency—it’s incredible! Just last week, I encountered a situation where … 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