Answer Posted / t.pitchaikannu

PLC(Programmable Logic Controller)
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* It is a controller which is used to control machines ,
process,or total industry
* It is programmable ,depending upon application we can
change the program ,download and run the controller.
* They are so many logics are used to write a programme
1.Ladder Logic(LD)
2.Instruction List(IL)
3.Function Block Diagram(FBD)
4.Structure Text(ST)
5.Sequential Flow Chart(SLF)
* From this name itself it used to control the
applications by programming the logic.

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