3 PLC architecture Quiz

What is the primary function of a Programmable Logic Controller (PLC)?

• To control industrial processes

• To store large amounts of data

• To provide internet connectivity

• To enhance audio quality

Which component of a PLC is responsible for executing control instructions?

• Power Supply

• Processor

• Output Module

• Serial Port

Which component of PLC architecture is responsible for executing instructions?

• Data memory

• Central processing unit (CPU)

• Program memory

• Power supply

What is the function of program memory in a PLC?

• To store data temporarily

• To execute instructions

• To store the control program

• To supply power

What does the scan time in a PLC refer to?

• The time taken to execute a single instruction

• The time taken to complete one cycle of the control program

• The time taken to store data

• The time taken to power up the system

Which component of a PLC is responsible for storing program and data?

• Input Module

• Output Module

• Memory

• Power Supply

What is the role of the CPU in a PLC?

• It stores data permanently

• It is the "brain" of the PLC

• It provides power to the PLC

• It connects the PLC to the internet

What is the term used for short-term memory in digital devices?

• ROM

• RAM

• SSD

• HDD

Why might older PLCs require extra storage?

• They have advanced features

• They have very limited resources

• They are more expensive

• They are faster

What type of storage do most modern PLCs use for both the program and data storage?

• HDD

• SSD

• Tape Drive

• Optical Disk