In modern industrial production equipment, there are a large number of digital and analog control devices, such as the start and stop of motors, the opening and closing of solenoid valves, product counting, and the setting and control of temperature, pressure, and flow. For these automatic control issues in industrial sites, Programmable Logic Controllers (PLCs) … Read more
For many years, Programmable Logic Controllers (PLC) have made a leap from wiring logic to storage logic; their functionality has progressed from weak to strong, achieving advancements from logic control to digital control; their application fields have expanded from small to large, transitioning from simple control of individual devices to competent motion control, process control, … Read more
With the development of computer technology, storage logic has begun to enter the industrial control field. The Programmable Logic Controller (PLC), as a general-purpose industrial control computer, is a representative achievement of storage logic in industrial applications.Since the first PLC was successfully developed in 1969 and applied to the automotive manufacturing assembly line, PLCs have … Read more
In recent years, with the development of society, PLC (Programmable Logic Controller) has been widely used in industrial production, and the requirements for its use by technical personnel have been increasing year by year. Therefore, the requirements for the normal and stable operation of the system are also getting higher. The Programmable Logic Controller (PLC) … Read more
Search on WeChat Tech Training A complete PLC program is not just about getting the system to run; it also requires comprehensive comments, excellent architecture, good scalability, a complete alarm protection system, and a simulation system before operation. Today, I will share several PLC examples for reference! 1. PLC Example – Traffic Light 1. Traffic … Read more
Search on WeChat Technical Training 1. Bidirectional Movement of the Cart Use S7-200 to achieve automatic control of the cart’s bidirectional movement. The control process involves pressing the start button, causing the cart to move from left to right (or right to left). When it reaches the right (or left) limit switch, the cart automatically … Read more
1. What is PLC? PLC is an intelligent controller, full name is Programmable Logic Controller. The definition of PLC is: an electronic system designed for digital operation, specifically for use in industrial environments. It uses a type of programmable memory for internal storage of programs, executing logical operations, sequential control, timing, counting, and arithmetic operations, … Read more
Working Principle of PLC PLC Concept (Basic Composition, Working Principle) PLC Data Types & Addressing Methods (It is important to distinguish this, PLC storage size (bit, byte, word, double word BIT BYTE WORD DWORD), types of storage (Siemens DIDQAIAQMSMVLTCHTHC area; Mitsubishi XYMDTCRVZ area), Data Types (INT16 DINT32 REAL STRING WORD16 DWORD32 BOOL TIME DATE CHAR8 … Read more
Anyone engaged in electrical work knows that the automation control of industrial production and technological development relies on PLCs. PLC can be broadly understood as: a centralized relay extension control cabinet. In actual production applications, PLCs greatly save the costs of industrial control and enhance the centralized management and automatic control of equipment. To learn … Read more
1. Definition and Classification of PLC PLC is a new generation of general industrial control devices based on microprocessor technology, integrating computer technology, automatic control technology, and communication technology. It uses “natural language” programming aimed at control processes, making it suitable for industrial environments, easy to understand, user-friendly, and highly reliable. PLC is developed based … Read more