Dave Williamson Martin

[Dave Williamson Martin]

Hey Martin,

According to me:
PLC is a digital computer device that controls the working of various machines and components of an industry.
DCS is a network of interconnected PLC’s and other devices. It is the main controller which controls the entire plant/industry function
SCADA is Supervisory Control and Data Acquisition. This is used to connect industries separated by longer distances.

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