PLC types and selection Quiz

What are the three distinct types of PLC architecture available for industrial automation?

• Fixed, Modular, Distributed

• Centralized, Decentralized, Hybrid

• Simple, Complex, Advanced

• Basic, Intermediate, Advanced

What are fixed PLCs generally used for?

• Large sized, extensive applications

• Medium sized, more complex applications

• Smaller sized, less complex applications

• Distributed applications

Which type of PLCs are generally used for medium sized, more complex applications?

• Fixed PLCs

• Modular or Rack PLCs

• Distributed PLCs

• Simple PLCs

What is a characteristic of distributed PLCs?

• Used for smaller sized applications

• Used for medium sized applications

• Used for large sized, extensive applications

• Used for fixed applications

What components are typically included in a fixed PLC?

• Power supply, CPU, memory, input/output, communication interfaces

• Only CPU and memory

• Input/output interfaces only

• Communication interfaces only

What is a characteristic of fixed PLCs?

• Inputs and outputs can be expanded

• They have a pre-built number of inputs and outputs

• They are the least common type of PLC

• They are always wireless

What is a disadvantage of a fixed PLC regarding CPU processing power?

• High processing power and large memory

• Low processing power and small memory

• High processing power and small memory

• Low processing power and large memory

For what type of applications are fixed PLCs most suitable?

• Complex applications with many inputs and outputs

• Basic applications with a small number of inputs and outputs

• Applications requiring high flexibility

• Applications with variable processing needs

What has driven modern fixed PLCs away from being simple, low-powered units?

• Decrease in industrial demand

• Reduction in technology advancements

• Increase in technology advancements and industrial demand

• Lack of communication interfaces

Why can't PLC modules usually be interchanged between manufacturers?

• They are too expensive

• They have different designs

• They are too large

• They require special software