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Why do we feel PLC better than Micro controller in the industries?

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Question added by Ashaad Mohammad Bappy , Assit. Manager Electrical , Shantex Pvt Ltd
Date Posted: 2015/05/06
Francois Bresse
by Francois Bresse , Chief Engineer Electrical , Hage Industries S. A (Groupe Hage)

In my opinion it is not a question of power. it is more about re-inventing the wheel. The heart of a PLC is a micro controller. the benefit of a PLC is having an of the shelf solution to design and implement a logic program in industries. It all depends on what you want to do with it. designed a system from a micro controller demands much more programming and at a lower level, you would also need a good electronic knowledge, for instance to kill the noise at each output port to drive the relays. If you want to control an industrial machine it is a bit tedious. The PLC is much better since all of that is already built in up to the relays or transistors. If you need to install a control on a very small package then you re choice would be a micro controller. In all cases there is much more to it and the only true answer to your question would be "it depends". Cheers, Francois

Safi Ullah
by Safi Ullah , Electrical Trainee Engineer , PESCO (Peshawar Electric Supply Company)

PLC is more powerful than micro controller. PLC is used for heavy projects instead of micro controller. 

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