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Wat is the difference between PLC,SCADA,DCS

Tags: scada, plc, dcs
Asked by gopi krishna, 10 Dec '09 07:28 am
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Answers (1)


Not much.

Traditional PLCs are migrating towards traditional DCSs, and vice versa.

Honeywell PlantScape/Experion is an example of a DCS moving towards a PLC.

Fisher Delta V is an example of a PLC moving towards a DCS.

In a small or medium plant, where there are about 100-200 I/Os total, many people use a PLC (Allen-Bradley), and many use DCS (Delta V, PlantScape).
Answered by MajorVLoganathan, 10 Dec '09 07:34 am

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