The component Remote Terminal Unit (RTU) is to convert analog data to digital data but it cannot control the physical system.
Hence, the correct answer is option “B”.
Explanation of Solution
RTU:
- RTU is an electronic device controlled by a microprocessor.
- In the industrial system, a RTU device installed at a key location that senses the attributes of the physical system.
- It converts the analog data to digital data and the main purpose of an RTU is to interface the SCADA (Supervisory Control and Data Acquisition) to the physical objects.
Explanation for incorrect options:
SCADA:
Supervisory Control and Data Acquisition is a network includes the servers, communication channels, and software.
Hence, the option “A” is wrong.
PLC:
Programmable Logic Controller (PLC) is the digital computers used mainly for automating the electromechanical processes.
Hence, the option “C” is wrong.
HMI:
Human Machine Interface (HMI) is the computer includes hardware and software.
Hence, the option “D” is wrong.
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Chapter 12 Solutions
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