Zero based learning PLC, can self study get started 10

The introduction is very simple, if you want to learn well, it is best to read more books on electrical control and computers, and improve your professional English reading ability

A programmable controller is an electronic system for digital operations designed for use in industrial environments. It uses programmable memory to store operating instructions such as logic operations, sequence control, timing, counting and arithmetic operations, and to control various types of machinery or production processes through digital and analog inputs and outputs.

1, learn PLC first of all to choose a good learning of a manufacturer's PLC, the Japanese PLC internal software integration is high, the application is simple, must be limited energy used in the most widely used, potential, development of a direction, but for the various brands of PLC have some understanding, including imports, domestic, these have a corresponding understanding, for the characteristics of each PLC, advantages and disadvantages, these have a better understanding, then will be a rare talent in the market in the future. ）

2. PLC is not a single programming technology, it is a system professional course. A PLC can be broadly considered a highly reliable PC with an operating system embedded in the back. First of all, you need to be proficient in the programming language ladder diagram and sentence table language of the PLC itself.

At this level, you can only read the programmed programs and design some of the programs needed for the project. (PLC is quick to get started, but you have to keep working hard.) ）

3. PLC is a discipline that focuses on the application direction. So a little more practice. For example, every time you go to the site to conduct a test, you can call the program on site to check it and understand the structure of the program, what are the differences and characteristics from other programs, and then the progress will be faster.

With the development of industry, more and more industry production equipment is more and more automated, automation is mainly the application of PLC, PLC programmable controller, you can program yourself to achieve the automation of equipment, the higher the degree of automation, the larger the PLC program, how to learn PLC?

1. If you want to learn PLC well, you must have a certain electrician foundation, because if you want to program well, you must know the original execution of PLC control, which is actually to replace some traditional control circuits with PLC, but the execution elements are unchanged, such as using a contactor to control the energization of the motor.

2. You must know some logical control theories such as and or not, as well as some data types and transformations between data.

3. With the above, you have to start operating the PLC, of course, you can first look at some theoretical knowledge and learn programming software, generally beginners start with Siemens S7 200 or Mitsubishi FX series.

5. Practice, take real PLC to practice programming and debugging your own programs, and communicate and learn more with some experienced masters.

If you don't know anything, you can learn PLC with zero foundation. Just learn is to learn a little programming basics, self-learning ability should be strong, and then the things you need to use should be able to find materials to learn.

1. The basic principle of relay control is the most intuitive way to get started, because PLC is better than relay control.

2. Understand the hardware and program operation mode of PLC.

3. The most basic programming of PLC and the use of programming software.

4. Preparation of small cases or examples.

5. From the simplest architecture to the most complex system, the most complex system is also the simplest system stacked up.

PLC: Programmable logic controller, which uses a class of programmable memory for its internal storage programs, executes user-oriented instructions such as logic operations, sequence control, timing, counting and arithmetic operations, and controls various types of machinery or production processes through digital or analog input and output.

Friends who have understood PLC automation, or who have understood this aspect of automation, should know that automation is to simulate the workflow, replace manual operation, and the whole process of action control is completed by the operation of the program, so the first and most important thing to master PLC is to master the PLC programming language. PLC languages are divided into ladder diagrams, statements, and function diagrams. Commonly used ladder diagrams, suitable for basic logical descriptions, statement tables suitable for data processing, in layman's terms, is to write a programming, set language actions, to complete the actions we want to complete.

PLCs that learn programming software include Mitsubishi, Siemens, Panasonic, Xinjie, Yonghong, etc., but now the market is mainly based on Mitsubishi and Siemens. Generally speaking, the basic things are imitation Siemens and Mitsubishi, as long as these two are learned, and then other programming software, they are all the same, and if you know these two, the others are not a problem.

It is very difficult to learn the programming of automatic electrical appliances from scratch. Of course, high-achieving students majoring in mechanical and electrical engineering can be ignored. Friends who are interested in this area but have no foundation or zero foundation, it is recommended that you learn some basic knowledge of electricians, the most basic is a circuit wiring problem, as well as electrical control circuits.

When it comes to learning, as mentioned above, unless you have a foundation or a friend who has just graduated and has a continuous learning state, learning will be relatively easy, otherwise it is still difficult to learn on your own.

Another is the need for some professional, systematic training to learn, in a specific environment, through professionals, professional teachers to systematically train and learn, such an effect is definitely incomparable to self-learning.

To learn PLC programming, it can be as little as a few days or as many as decades, depending on the situation. Basically, learning PLC programming from scratch takes two months of honing period, and how you will learn after that is your own performance and whether you work hard to understand it.

1. Learning Methods:

1. Choose a language that suits you: It is very important to choose a programming language that suits you, and it is recommended that beginners give priority to easy-to-learn and easy-to-use programming languages.

2. Learn basic knowledge: The basic knowledge of programming includes concepts such as data types, variables, arithmetic operators, logical operators, control flow statements, etc., which are the foundation of programming and need to lay a solid foundation.

4. Solve more practical problems: Try to solve some practical problems, such as making personal web pages and writing Lu Pai Shi games, etc., so as to exercise your programming ability.

6. Participate in programming competitions: Participating in programming competitions is also a good way to improve programming ability, such as international competitions or some domestic programming competitions, and exercise your programming thinking and ability through competitions.

7. Combine with practice: The most important thing in programming learning is practice, and students should continue to practice programming to strengthen their understanding and skills.

2. Knowledge development:

1. Programming is the Chinese abbreviation of programming programs, which is the process of letting the computer ** solve a certain problem, prescribing a certain calculation method for a certain computing system, making the computing system run according to the calculation method, and finally getting the corresponding results.

2. In order for the computer to understand human intentions, human beings must tell the computer the ideas, methods and means of the problems to be solved in a form that the computer can understand, so that the computer can work step by step according to human instructions and complete a specific task. This process of communication between people and computing systems is programming.

It can be as little as a few days, or as many as decades, depending on the situation. First of all, do you have a foundation in electrician? If you don't have a thing, then you go to the electrician base cover to regret the stupid foundation of the course again, and then start to learn the most basic, such as PLC digital circuit basics, understand PLC, programming basics, software use, basic instruction systems and programming, timers and counters, etc, you can learn some basics first, and then go offline to get started.