Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 12, Problem 10RQ
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Comparison on an event-driven and a time-driven sequencer:
| Event-driven sequencer | Time-driven sequencer |
| The operation of an event-driven sequencer is similar to that of a | The operation of a time-driven sequencer is similar to that of a mechanical drum switch which increments automatically after a preset time period. |
| In order to represent a sequence of operation in a matrix style format, the output is indicated on horizontal axis and the input is indicated on vertical axis... |
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Programmable Logic Controllers
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