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Title: Scada Systems
Author: Ian Metcalfe
Source: 2011 International School of Hydrocarbon Measurement
Year Published: 2011
Abstract: The definition of SCADA is Supervisory Control and Data Acquisition. The major function of SCADA is for acquiring data from remote devices such as valves, pumps, transmitters etc. and providing an overall control remotely from a SCADA Host software platform. This provides process control locally so that these devices turn on and off at the right time, supporting your control strategy and a remote method of capturing data and event (alarms) for monitoring these processes. SCADA Host platforms also provide functions for graphical displays, alarming, trending and historical storage of data. Historically, SCADA products have been produced that are generic with a one shoe fits all approach to various markets. As SCADA has matured to provide specific solutions to specific SCADA markets it has provided solutions for wide area network SCADA systems that rely on tenuous communication links. These types of SCADA systems are used extensively throughout the Oil & Gas market due to the fact that assets are spread over large geographical areas.

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