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This article mainly introduces "what are the pros and cons of PLC programming language". In daily operation, I believe many people have doubts about the pros and cons of PLC programming language. I have consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "what are the pros and cons of PLC programming language?" Next, please follow the editor to study!

The commonly used programming languages are as follows: LAD ladder diagram, STL statement table, SCL structured text (high-level programming language), Graph flow chart, FBD function module.

LAD ladder diagram is the most popular programming language at present.

Ladder diagram language

Similar to relays, intuitive and easy to understand, very suitable for beginners

The ladder diagram consists of contacts, coils and instructions represented by function boxes. Contacts (similar to relay contacts) represent logical input conditions, and coils (similar to relay coils) represent logical operation results.

On the left is the signal flow bus, which always flows from left to right. Scanning always scans from top to bottom.

STL statement table, suitable for experienced programmers

STL statement list programming

STL statement list programming is similar to assembly programming, but instructions are easier.

SCL structured text programming, similar to high-level programming languages

SCL structured text programming

It is suitable for people who are engaged in computer language programming before, and high-level language is suitable for functions that can not be realized by other languages. Using high-level language to program, it can complete more complex control operations.

Graph flowchart programming, suitable for automatic process control

Graph flow chart

To meet the sequence control of the process programming, suitable for equipment automatic process programming, simple programming, intuitive viewing, can locate the problem point at the first time.

FBD, functional module programming, is a PLC programming language similar to digital logic circuits.

Functional Modular programming of FBD

To sum up, personal suggestions: beginners to start learning LAD; equipment automation process to use SCL; language; need to achieve complex control operations can use SCL; efficient programming, data addressing, recommended STL language; accustomed to electronic circuit editing can use FBD language.

At this point, the study of "what are the pros and cons of the PLC programming language" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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