Process automation system: Difference between revisions

Revision as of 11:50, 30 May 2006

Revision as of 06:24, 12 July 2006

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A process control or automation system is used to automaticlyautomatically control a process such as chemical, oil refinerys, paper and [[pulp]] factories.

The PAS often uses a network to interconnect sensors, controllers, operator terminals and actuators.

A PAS is often based on open standards in contrast to a [[DCS]] (distributed control system), which is traditionally proprietary.

However in resent times the PAS is considerdconsidered to be more assosiated with [[SCADA]] systems.

PAS is the lowest level of automation, while the [[Manufacturing Execution Systems|MES]] are considered to be directly positioned above a PAS