what is difference between PLC and DCS?

Answer Posted / jaibhavani sivaji

now a days both the DCS and PLCs have similar
functionalities, the main difference is in the case of HMI
systems, here in DCS a third party HMI system can be
configured according to the requirement of the end user,
wereas that is not possible in the case of an PLC.
otherwise all the functionalities are same .

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