Answer Posted / ranjan prasad
In my organisation no PLC is there for controlling the
logics in best optumum time and relible manner. PLC stand
for "programable logic controller".All word have its
specific meaning say
Programable- Means Any logic as per the process requirments
can be programmed in its controller.There are various way
of doing the programming like ladder logic programming,
control system programming and through Functional block
diagram.
Logic- All the process requirments are build into some
logic and it may be and , or , EX-OR, or combination of all
these.
Controller-All these programing is to be carried and saved
in CPU which is known as controller.
By the combination these it is called PLC
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