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Relay

Difference between Relays and PLCs

January 8, 2019May 14, 2016 by admin

Relays are electro-mechanical switches that have coil and two types of contacts that is NO & NC. But a Programmable Logic Controller, PLC is a mini computer which can take decision based on the programme and its input & output. Thus a PLC can perform many functions with the same hard wiring. A simple architecture … Read more

Categories Power System Protection Tags PLC, Relay Leave a comment

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