PLC beginners can learn a brand of PLC at the beginning, because all the principles of PLC are similar. If you have mastered a PLC, you can use it just by reading the manual. In the beginning, you can edit some simple ladder diagrams, such as the AND, OR, and output of the contacts, and run it in the PLC machine. Success will increase your interest and confidence in learning. Then use the main functions of the PLC one by one, such as high-speed counter, you can use the pulse output terminal of the PLC itself to connect to the input terminal of the high-speed counter, download the compiled ladder diagram, open the variable observation window, run the program, observe the count Whether the value is correct. After such practice, you basically know what PLC can do in the end, and you can be confident in the actual industrial control application.
1. Reasons to learn PLC
PLC control is the mainstream of today's automation control. At present, most of the automation machine control adopts PLC control. As long as they are engaged in automation, they must use PLC, otherwise they cannot enter the door of automation control and are eliminated by the automation industry. For this, I have to learn PLC.
2. Method
a. It's best to buy a PLC for practice;
b. PLC technology is a very practical technology, if you want to learn well, then you must practice it. Programming is like a martial arts man. If he just sits at home all day watching martial arts and does not go out to practice martial arts, then even if it is a powerful martial arts intensive, his skill will not improve for a long time. The same is true for learning PLC. Reading a book is useless. You will not use it after reading a PLC book ten times. Anyone who has learned programming (no matter what language) knows.
c. In the process of learning PLC book knowledge, you will definitely not understand many instructions. If you do not solve them one by one, then this will be the biggest obstacle for you to learn PLC. Therefore, carry out practical applications and break through one by one. In this way, your PLC knowledge will not only be solidly learned, but also in the process of learning you have mastered the actual use.
d. After learning PLC has a certain foundation, you can independently write a program of your own design, and then send it to the PLC to run the program. After continuous modification, debugging, and finally running successfully, your interest will increase greatly and achieve satisfactory results.
3. PLC learning books recommended
Introduction to zero-based self-learning PLC
FX series PLC programming and application_LIAO Changchu
Introduction to touch screen and PLC_Yan Yingfu
PLC programmable controller tutorial_Yin Hongye
Siemens PLC example electronic tutorial
Elementary advanced Siemens PLC electronic tutorial
"Selection of PLC Application Development Cases" by Gao Qinhe
PLC and frequency converter application technology project tutorial section
These books are all downloaded from the official website of the electronic enthusiast website, and they are all free. I hope they will help you!
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