Click on the above Electrical Engineering Learning to follow and star it. A professional self-media in the field of electrical engineering, don’t miss it. 1. Bit Logic Instructions (1) Contact and Coil Instructions Programming principles of PLC ladder diagram language: 1. The ladder diagram consists of multiple rungs, each coil can form a rung, and … Read more
1. Wiring according to the diagram is the highest principle. First, before wiring, one must carefully read the drawings and fully understand the designer’s intentions, rather than relying on personal so-called rich experience. If any unclear or contradictory points are found, one should immediately contact the designer for confirmation before proceeding with the wiring construction. … Read more
Click the blue text to follow! Old Li Talks Technology: The Essentials of PLC Programming 1 Starting from an Emergency Repair Last night, the packaging line in Workshop 2 suddenly stopped, and the manager was extremely anxious. Xiao Wang called me: “Old Li, come quickly, the machine won’t move!” When I arrived on site, I … Read more
Click the blue text to follow! Old Li Talks Technology: Things About PLC Ladder Diagram Programming Little Wang, last Friday our workshop’s packaging line suddenly stopped, it was urgent, and the production manager was stamping his feet beside me. I looked at the system alarm, and it was the photoelectric switch on the conveyor belt … 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
Click the blue text for more exciting information I have been in the PLC industry for nearly 20 years, working on the front lines. To be honest, seeing those freshly graduated young people programming makes me laugh. They hold onto a pile of theories talking about control algorithms, yet they can’t even understand a simple … Read more
Most PLC programming consists of input contacts and output coils, which influence real-world outcomes through logical series/parallel combinations. —————————————————— Although each model of PLC seems to have its unique programming standards, there is indeed an international standard that most PLC manufacturers at least attempt to follow. This is the IEC 61131-3 standard, which will be … Read more
Search on WeChatElectrical Engineering and Electrical Learning PLC program design generally adopts the intuitive method, which is based on the learning experience of the circuit designer, making it relatively subjective and direct. It requires a period of trial and error, debugging the program until it meets the required functions or action requirements; therefore, the designed … Read more
In the previous issue, we discussed the programming applications of two languages: PLC Programming Languages: Ladder Diagram (LD) vs. Structured Text (ST) According to the voting results over the past month, it is clear that Ladder Diagram LD still occupies the largest share, followed by Structured Text ST. The specific data is shown in the … Read more
Click the blue text above to follow us The industrial automation control system is the core of modern manufacturing, and almost all production lines, equipment, and processes rely on it. A good automation control system must not only be stable and reliable but also flexible and scalable to meet the dual demands of production efficiency … Read more