What is a programmable logic controller

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Reference no: EM131255511

1. What is a programmable logic controller?

2. Identify and briefly describe the three basic components of a numerical control (NC) system.

3. What is the difference between point-to-point and continuous path in a motion control system?

4. What is the difference between absolute positioning and incremental positioning?

5. What is the difference between an open-loop positioning system and a closed-loop positioning system?

6. Under what circumstances is a closed-loop positioning system preferable to an open-loop system?

7. Explain the operation of an optical encoder.

8. Why should the electromechanical system rather than the controller storage register be the limiting factor in control resolution?

Reference no: EM131255511

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