Relay Plc
Difference between relay &plc?
Diff. Between plc & relay
Generally PLC are used for Industrial automation,In PLC user can easily program relays as a sequence logic as per process.
Relays are used for isolation purposes.
automation can be done using relays,but wiring ,maintenance,modification are difficult.
This is not the case with PLC.
User can easily modify the logic to add number of input outputs .
To know basics of PLC
visit http://plclibrary.blog.co.in
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