Activities Manual For Programmable Logic Controllers
Activities Manual For Programmable Logic Controllers
5th Edition
ISBN: 9781259682476
Author: Frank Petruzella
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 5, Problem 6P
Program Plan Intro

Limit switch:

  • The limit switch refers to a generally used industrial control device.
  • It is intended to function only when it attains a fixed limit, and it is typically activated by contact with an object such as a cam.
  • There are two types of limit switches such as Normally Open (NO) switch and Normally Closed (NC) switch.

Explanation of Solution

b.

Ladder logic program:

The equivalent ladder logic diagram for the given hardwired circuit diagram is as follows:

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