In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This way, the stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular stop button? In … Read more
In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This type of stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular emergency stop button? … Read more
For beginners in PLC programming, the key to getting started quickly is toprogress from “hardware recognition” to “simple logic” and then to “practical verification”, step by step, avoiding getting bogged down in complex theories at the beginning. Here is a proven efficient learning path and methods: 1. Define Your Goals: First Understand “What PLC Can … Read more
The Design Requirements for a Perfect PLC Program A complete PLC program is not just about making the system operational; it also requires comprehensive comments, excellent architecture, good scalability, a complete alarm protection system, and a simulation system before operation. 1. Simplicity Make the PLC program as simple as possible. Simplicity means using standardized program … Read more
Click the blue text to follow usPLC (Programmable Logic Controller) control cabinets are core components used in automation control systems. By programming the PLC, precise control and automated management of mechanical equipment can be achieved. Let’s follow the editor of Qifeng to learn how to program a PLC control cabinet?How to program a PLC control … Read more
Learning PLC programming does not require a deep professional background, but mastering some basic knowledge can help you understand the core logic more quickly and avoid detours. Below is a framework of essential knowledge for beginners, categorized as “Basic Understanding → Electrical Basics → Programming Thinking”: 1. Basic Understanding of Industrial Control The Core Function … Read more
0805: The Yantai Method for Standardized PLC Programming Open to Criticism One day, I read a highly technical article. The author described their work as being of a high standard, and I am also eager to see my peers develop high-level technical achievements. However, during my reading, I had several questions about some details and … Read more
1. Introduction: Application of Analog Input Modules in Industrial Control In industrial automation systems, continuously varying physical quantities such as temperature, pressure, and flow need to be converted into digital signals throughanalog input modules for processing by PLCs. The Siemens S7-200SMART, as a representative of compact PLCs, has its expansion analog modules (such as EM … Read more
Structured Text(ST) Programming from Basics to Advanced Applications ST Language Basics and Overview Structured Text(ST) is a high-level PLC programming language that complies with the IEC 61131-3 standard. It uses a syntax similar to Pascal, making it particularly suitable for implementing complex algorithms, mathematical calculations, and data processing. The Omron NJ series PLC fully supports … Read more
In the vast realm of industrial automation, PLC programming shines like a brilliant star, illuminating every corner of the production process. From its inception to the present day, it has undergone multiple transformations, and its application fields continue to expand. Today, let us explore the development history and diverse application areas of PLC programming, look … Read more