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)
Expert Solution & Answer
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Chapter 12, Problem 1P

Explanation of Solution

Operations of drum switch:

The structure and operations of the given drum switch is as follows:

  • To operate the contact blocks in the drum, the “pegs” are situated at the particular locations around the drum.
  • The contacts which are associated with the “pegs” are closed and the contacts without pegs are opened when the drum gets rotated.
  • The logical value “1” or “ON” is used to represent the peg existence and the logical value “0” or “OFF” is used to represent the peg non-existence.

Sequencer data table:

The equivalent sequencer data table for the four steps of the mechanical drum-operated sequence is as follows:

010100

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Students have asked these similar questions
Need help answering these questions!1. Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.   2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000   3. Convert the While loop in the following code to a Do-While loop:     Declare Integer x = 1     While x > 0        Display "Enter a number."        Input x     End While
Need help with these:Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.   2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000   3. Convert the While loop in the following code to a Do-While loop:     Declare Integer x = 1     While x > 0        Display "Enter a number."        Input x     End While
Convert the While loop in the following code to a Do-While loop:    Declare Integer x = 1    While x > 0       Display "Enter a number."       Input x    End While
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