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Scada system
Scada historian data analysis
SCADA Systems (Supervisory Control and Data Acquisition Systems) have
become integrated part of automated systems and have provided a greater
degree of reliability along with increased efficiency to these tasks.
As clear from the name, itself SCADA systems are not any control
systems but supervisory systems. They supervise automated tasks and
take decisions on their own if any state/ parameter changes more than
permissible value. Thus, these systems require minimal human
intervention and can be addressed as closed loop systems. But human can
intervene at any point of time, thus making these systems flexible to
use.
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Any SCADA system is composed of these main parts: Signal
hardware (used for input as well as output), controllers (which control
the flow of data or in other ways how and when data is collected and
processed), user interface (known as Human Machine Interface), number
of networks (which connects remote sensors together and then to a
central system), software (for programming of SCADA system) along with
the communication equipment.
The key features of every SCADA system are: Remote terminal Units
(abbreviated as RTU) and Human Machine Interface (abbreviated as HMI).
The brain of SCADA system lies in remote terminal units. Remote
terminal units are generally programmed as per requirements but human
intervention can also take place as per the need. |
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With each passing day, we are
becoming more and more dependent on automated tasks. Now, we can't
believe ourselves without automation. At small scale, precision and
efficiency don't worry a great deal but when it comes to big terms,
these two things matter a lot.
SCADA systems (Supervisory Control and Data Acquisition Systems) work
in this direction. Though these systems started developing in 1960's
but recently they have evolved have started playing an important role
in automated tasks.
With deployment of SCADA systems a high degree of reliability and
efficiently gets attached with automated tasks. Being supervisory
systems they supervise the automated tasks and takes pre defined
actions when a state/ parameter value rises above permissible
levels.
Related Topics: Scada system,
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