Industrial Automation Chapter 9: SCADA 9.1 Quiz

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Questions and Answers

What does SCADA stand for?

Supervisory Control and Data Acquisition

What was the first data acquisition method used in early SCADA systems?

Panels of meters, lights, and strip chart recorders

What are the fundamental principles of modern SCADA systems?

Telemetry and data acquisition

What is one of the most widely used control systems in industry?

PLC (Programmable Logic Controller) 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 the systems became more intelligent and smaller in size Signup and view all the answers

What does DCS stand for?

Distributed Control Systems Signup and view all the answers

What is one advantage of a PLC / DCS SCADA system mentioned in the text?

The capability to record and store a large amount of data Signup and view all the answers

What is a disadvantage mentioned about the PLC / DCS SCADA system in the text?

The operator's ability to see beyond the PLC Signup and view all the answers

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

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

What distinguishes proprietary SCADA software from open software?

Open software is developed for a specific hardware, while proprietary can be used with any hardware Signup and view all the answers

What is the most widely used LAN today, as mentioned in the text?

Ethernet LAN Signup and view all the answers

What type of device collects field data and sends it back to a master station in a SCADA system?

Remote Terminal Units (RTUs) Signup and view all the answers

'Turn key' solutions are associated with which type of SCADA software?

Proprietary software Signup and view all the answers

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

To enable all nodes on the network to share information Signup and view all the answers

What is the primary purpose of using a modem in SCADA systems?

To connect RTUs at remote locations to a central location Signup and view all the answers

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