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Mechanical Engineers Portal

Saturday, June 17, 2017

Automation and PLC(Programmable Logic Controller)

Automation: 
Automation  made of two words, Auto means Self and Motion means Movement. So automation is process of controlling equipment or machines without the interfere of human.

Benefits of Automation:
  • Accuracy
  • Unnecessary cost reduction
  • increase in efficiency
  • required less human effort
  • reduction in wastage
PLC(Programmable Logic Controller):

Image credit: bse-tech
In simple word you can say that it is a switching device just like a electric fan switch.

In other word "PLC is a device in which we can program by the help of computer and we can perform sequential and logical operations."

First PLC was introduced by Modicon.

Block diagram of PLC:





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