Control systemsLesson 2 of 2 in the course Transfer functions and modelling

Block Diagrams for System Functions and Process Design

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

A block diagram represents the principal parts or functions of a system as blocks connected by lines. It helps people understand how a system is organized and how its parts relate without requiring implementation details.

A block diagram is a diagram in which blocks represent the main parts, functions, or operations of a system, while connecting lines show relationships, associations, or the direction and order of flow. The blocks may represent functions rather than specific physical components.

All flashcards

What is a block diagram?
A representation of a system using blocks for principal parts or functions and lines for relationships or flow.
What does it mean for a block to be a black box?
Its internal workings are hidden or unspecified, while its role and often its inputs and outputs remain visible or understood.
How do block diagrams, schematics, and layout diagrams differ?
Block diagrams emphasize high-level functions; schematics show electrical components and connections; layout diagrams show physical construction details.
What is top-down design?
A design approach that starts with a broad overview and develops progressively more detailed representations until parts are ready to implement.
What is a function block diagram in PLC programming?
A diagram-based programming language defined as one of the five languages in Part 3 of IEC 61131.

Quiz questions

  1. What do blocks in a block diagram generally represent?Answer: Major system functions or parts.
  2. What can connecting lines in a block diagram communicate?Answer: Relationships and possible direction of flow.
  3. Which comparison accurately distinguishes block diagrams from schematics?Answer: Block diagrams emphasize major functions; schematics detail electrical components and connections.
  4. Which design approach begins with a broad system overview and develops increasingly detailed parts?Answer: Top-down design.
  5. What is the status of function block diagram in the IEC 61131 standard?Answer: It is one of five programming languages defined in Part 3.

Based on the Wikipedia article Block diagram, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

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