Answer Posted / tarun aggarwal ymca

PLC: PLC is a Micro Processor based Electronic Device which is used to control certain process according to predefined programs which are saved in the PLC.
These programs can be change or modified as per the requirement.
SCADA: as its name Implies Supervisory Control and Data acquisition, is used for monitoring and controlling of Processes which displayed graphically.
Through SCADA we can do just small changes during the execution of process ( e.g, we can change only value of variables).
Also it gives feature like storing, and can communicate to other servers.
Here programming is done in Scripting language.

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