PLC programming

Intermediate PLC Programming: Indirect Addressing Technology for More Flexible and Efficient Array Processing!

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Intermediate PLC Programming: Indirect Addressing Technology for More Flexible and Efficient Array Processing!

Intermediate PLC Programming: Indirect Addressing Technology for More Flexible and Efficient Array Processing!🔥 The challenges of traditional array processing, the efficiency black holes you might be overlooking! Have you encountered these issues in PLC programming: fixed array structures that are difficult to expand? Low data retrieval efficiency, slow program response? Wasted memory resources, high costs … Read more

Seven Methods of Step Control in PLC: A Comprehensive Guide from Basics to Customization

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Seven Methods of Step Control in PLC: A Comprehensive Guide from Basics to Customization

Step control in programming is a very common control method in industrial automation, suitable for sequential execution of process flows. Unlike continuous control, step control allows industrial processes to execute in predetermined steps, ensuring that each process action is completed at the correct time. This article will detail seven practical programming methods for step control, … Read more

PLC Program Version Management: Practical Tips to Avoid Code Chaos!

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PLC Program Version Management: Practical Tips to Avoid Code Chaos!

PLC Program Version Management: The End of Code Chaos, Maintenance Efficiency Soars by 300%! Last year, a certain automotive factory’s production line suddenly went down. Maintenance personnel spent three days and nights troubleshooting, only to discover that an old version of the program from two months ago had been mistakenly overwritten, causing logical errors in … Read more

Efficient Configuration of Touchscreen Panels

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Efficient Configuration of Touchscreen Panels

1 Introduction A few days ago, a friend asked me for a quick way to configure multiple motors and cylinders on a touchscreen in their project, as configuring each object one by one was cumbersome. In fact, it is possible to use the panel function in the touchscreen. By configuring such a panel, the variables … Read more

Cost-Reducing Techniques for Modular Design Programming in PLC Industrial Automation Systems

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Cost-Reducing Techniques for Modular Design Programming in PLC Industrial Automation Systems

Click the blue text for more exciting information Things About Modular Design in PLC Industrial Automation Systems I just returned from a pharmaceutical factory in Jiangsu, where I spent three days and nights getting the production line up and running. To be honest, every time I see those messy PLC programs, I get a headache. … Read more

Using RETURN in PLC Programming to Improve Efficiency and Reduce Scan Cycles

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Using RETURN in PLC Programming to Improve Efficiency and Reduce Scan Cycles

Hello everyone, I received a submission from a fan who mentioned seeing the RETURN instruction used in someone else’s program and asked me to explain its usage. As the name suggests, RETURN means to return. In a program, it is used to control the execution flow, returning to the point of the higher-level call. When … Read more

Implementation of Interconnectivity Technology in PLC Intelligent Manufacturing System Function Block Programming

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Implementation of Interconnectivity Technology in PLC Intelligent Manufacturing System Function Block Programming

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 Hardware Programming Interfaces: Flexible Choices for Different Scenarios!

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PLC Hardware Programming Interfaces: Flexible Choices for Different Scenarios!

Introduction **Hello everyone!** Today, I want to talk to you about a frequently overlooked but extremely important part of PLC programming —hardware programming interfaces. “Isn’t it just about plugging in a cable?” **You might think so. But I want to tell you that **choosing the right programming interface can improve your debugging efficiency by over … Read more

Deployment Strategy for Process Control Based on Modular Design in PLCs

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Deployment Strategy for Process Control Based on Modular Design in PLCs

Click the blue text to follow! Deployment Strategy for Process Control Based on Modular Design in PLCs Two days ago, Xiao Zhang from the workshop rushed to me: “Old Li, the filling system on production line 3 has problems again. The program is a complete mess; modifying one part requires retuning everything, which not only … Read more