PLC programming

Basic Tutorial on Weilin Touch Screens (Including Programming Examples)

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Basic Tutorial on Weilin Touch Screens (Including Programming Examples)

(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

Enhancing Efficiency in PLC Programming with PLCopen Standards

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Enhancing Efficiency in PLC Programming with PLCopen Standards

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

Learning PLC Programming from a Cylinder Control Case

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Learning PLC Programming from a Cylinder Control Case

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

Variable Types and Data Processing in PLC Sequential Control Programming

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Variable Types and Data Processing in PLC Sequential Control Programming

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

Setting Up a PLC Programming Environment: Configuration and Use of Data Types

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Setting Up a PLC Programming Environment: Configuration and Use of Data Types

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

Introduction to PLC Control: Siemens PLC Wiring Diagrams and Ladder Diagram Program Examples

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Introduction to PLC Control: Siemens PLC Wiring Diagrams and Ladder Diagram Program Examples

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

Standardization of PLC Programming: Norms and Best Practices for Ladder Diagrams

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Standardization of PLC Programming: Norms and Best Practices for Ladder Diagrams

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

Basics of PLC Programming: A Beginner’s Guide to Ladder Diagrams

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Basics of PLC Programming: A Beginner's Guide to Ladder Diagrams

I really can’t stand those newcomers in the industry who ask the most ridiculous questions every day. Just yesterday, a guy came to me with a textbook asking why his ladder diagram program wasn’t working. When I opened it, it was a mess of logical relationships, and he couldn’t even distinguish between normally open and … Read more

Fundamentals of PLC Programming: A Beginner’s Guide to Address Allocation

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Fundamentals of PLC Programming: A Beginner's Guide to Address Allocation

It’s unbelievable, I see someone asking about PLC address allocation again. It’s already 2024, and people are still struggling with this issue, which is a common problem for field electricians. What is there to discuss? Alright, for the sake of all the newcomers, I will talk about it today to save you from stepping into … Read more

Fundamentals of PLC Programming: A Beginner’s Guide to Bit Operations

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Fundamentals of PLC Programming: A Beginner's Guide to Bit Operations

After observing the discussions about bit operations in the group over the past few days, it’s hard to express my feelings! Some of the bit operation codes written by people made my eyes hurt. If the fundamentals of these bit operations are not solid, you could end up in serious trouble on-site! Not to mention … Read more