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SCADA (Supervisory Control and Data Acquisition) History and Introduction

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SCADA (Supervisory Control and Data Acquisition) History and Introduction

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Questions and Answers

What does SCADA stand for?

System Control and Data Automation

Supervisory Control and Data Automation

System Control and Data Acquisition

Supervisory Control and Data Acquisition (correct)

What were the first 'SCADA' systems like?

Utilized data acquisition through wireless sensors

Utilized data acquisition through advanced computers

Utilized data acquisition through satellite technology

Utilized data acquisition through panels of meters, lights, and strip chart recorders (correct)

What does SCADA encompass?

Combination of telemetry and data acquisition (correct)

Only telemetry

Only data acquisition

Supervisory control only

What are PLCs widely used for in the industry?

Control systems in industry Signup and view all the answers

As needs grew to monitor and control more devices in the plant, what happened to the PLCs?

They were distributed and became more intelligent and smaller in size Signup and view all the answers

What is the role of the master station in a SCADA system?

To display the acquired data and allow remote control tasks Signup and view all the answers

What are the advantages of using SCADA software with an open system?

It brings interoperability to the system Signup and view all the answers

Which level or hierarchy in a SCADA system is responsible for collecting field data and sending it back to the master station?

Field level instrumentation and control devices Signup and view all the answers

What is the most widely used LAN in SCADA systems, and why is it preferred?

Ethernet LAN due to its cost-effectiveness and ease of use Signup and view all the answers

What is the purpose of connecting the SCADA network to a LAN?

To provide a transmission medium for sharing information among nodes Signup and view all the answers