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PLC programming for beginners

What is PLC?

A Programmable Logic Controller, or PLC, is a ruggedized computer used for industrial automation. These controllers can automate a specific process, machine function, or even an entire production line.


PLC programming
PLC programming

How to program PLC's?

PLC management units are programmed with special graphic or text-based programming languages. PLC devices typically don’t have the standard input and show functions, and they additionally don’t have graphic show interfaces, or these square measures simply on a little screen.

Programs typically ought to be written on a computer’s development atmosphere, then transferred to PLC devices.


PLC programming languages


Graphic languages:

  • Ladder Diagram – LD

  • Functional diagram – FBD:


  • Sequential performance Chart – SFC:


Text-based languages


  • Structured Text Programming – ST: