Difficulty: Easy
Correct Answer: All of the above
Explanation:
Introduction / Context:
Replacing hardwired logic or purely mechanical control with a microcomputer-based controller brings performance, maintainability, and diagnostic benefits, reshaping how machines are designed and serviced.
Given Data / Assumptions:
Concept / Approach:
Digital control executes logic at high clock rates, enabling short scan times and reduced control latency (faster cycle time). Programmable control logic replaces complex cams/relays, simplifying mechanical arrangements. Built-in software can perform self-tests, sensor plausibility checks, and fault logging, enhancing diagnostics.
Step-by-Step Solution:
Verification / Alternative check:
Modern PLCs and embedded controllers universally provide high-speed I/O tasks, user-configurable logic, and diagnostic toolsets.
Why Other Options Are Wrong:
Each individual benefit is valid; therefore 'All of the above' is correct.
Common Pitfalls:
Ignoring real-time constraints and I/O latency; proper scheduling, interrupt handling, and hardware selection are needed to realize these benefits.
Final Answer:
All of the above
Discussion & Comments