Chapter 11 Digital Implementation of Process Control
Check Your Reading Study Questions Thought Questions
The questions will be categorized according to the key concepts in the Chapter.
| Sampling | Controller tuning |
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Digital Algorithm |
Control system configuration |
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| Check Your Reading |
Solidify the Concepts |
| 11.1 For ease of communication, plant-wide digital control is implemented in one computer (processor, storage, etc.). |
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| 11.2 The correct execution period for a digital controller depends upon the feedback process dynamics. |
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| 11.3 The zero order hold is used for a sampled value because it provides the best approximation for the continuous signal. |
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| 11.4 The smallest sampling period for standard sensors (T, P, F, and L) is 1 second. |
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| 11.5 The longest sample period for process sensors is a few seconds and never greater than one minute. |
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| 11.6 We implement digital PID controllers to improve the performance over continuous controllers. |
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