Glossary Item

SCADA - Supervisory Control and Data Acquisition


SCADA is an acronym that is usually used to apply to systems provided by PLC software manufacturers (such as Allen Bradley, Siemens, TI, etc.) to refer to a set of tools offered to develop HMIs (Human Machine Interfaces) and collect data for process monitoring.

Under a classic SCADA design, data is real time, and is typically not saved anywhere - so once the process is over, the data is gone. Later designs can include various levels of data storage, and there are now tools called "historians" which allow the mining of this data to provide various charts and reports on the process.

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This page last updated: 08/30/2011