Programmable Logic Controllers
Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 6, Problem 26RQ

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Seal-in circuit:

  • A seal-in circuit refers to a circuit which maintains current flow through the Programmable Logic Controller (PLC) after a momentary switch has been turned ON or OFF...

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