Answer Posted / naveediqbalsher@yahoo.com
PLC mean programmable logic controler
DCS mean distribution control system
before different plc have digital inputs & outputs but DCS
digital & analog both.
now new plc also both digital & analoge inputs & outputs
in plc we can not change in software during running but in
DCS we can.also plc for small inputs &outputs but dcs for
big industries i mean more inputs & outputs.
plc have quick reponse than DCS.
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