Introduction The statement “communication is the most frustrating aspect of PLCs” resonates widely among automation engineers, electrical technicians, and field maintenance personnel. This is not an exaggeration, but rather a conclusion drawn from the inherent complexity of communication, the harshness of field environments, and the rapid pace of technological iteration. We can delve into the … Read more
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
PLC Data Mapping: Memory Mapping Configuration Techniques for Efficient Communication Data Processing! Introduction **Hello everyone!** Today, I want to share a secret that can significantly boost the efficiency of PLC communication—memory mapping configuration techniques. Don’t be intimidated by this technical term, I will explain this powerful feature in the simplest way possible. **Mastering this method … Read more
Recently, while debugging a production line at a beverage factory, operator Lao Wang complained, “This touchscreen is too difficult to use, the button positions are unreasonable, and there are frequent issues with inaccurate data display.” This made me realize that many factories face similar problems. In fact, the interaction design between PLCs and Human-Machine Interfaces … Read more