SCADA System Size And Functionality
To the uninitiated, SCADA may seem like just another chunk of consonants and vowels floating around in the alphabet soup of today’s culture. But a SCADA system is, in reality, an extremely important application of computer technology that has created huge gains in productivity and efficiency in the processing industries.
A SCADA system is an assemblage of computer and communications equipment designed to work together for the purpose of controlling a commercial process.
Besides control, SCADA systems also perform monitoring, data logging, alarming and diagnostic functions so that large, complicated process systems can be operated in a safe manner and maintained by a relatively small staff.
Generalized SCADA System Architecture
A SCADA System’s components are comprised of:
- One or more CPU’s (Central Processing Units),
- RTU’s (Radio Telemetry or Remote Terminal Units),
- I/O Subsystems,
- Video monitors,
- Field Sensors,
- Control Devices and
- Lots of software that drives the I/O, runs the control algorithms, generates control outputs, displays graphics and monitored values, senses alarm statuses, and stores the monitored points in a series of data files that can be archived and recalled at a later time for analysis or process verification.
|Title:||SCADA Systems In Wastewater Treatment – Stephan J. Sosik, CEO of Process-Logic, LLC|
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