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 7, Problem 8P
Program Plan Intro

Timer:

  • Timer is mainly used to keep an output ON for a specific length of time.
  • It provides a preset delay to the control actions.
  • In a timer, the output will be energized when the preset value becomes equal to the accumulated value.
  • Three different types of timers include a Delay-OFF, a Delay-ON, and a Delay-ON-Retentive timer.

Timer ON Delay (TON):

  • TON refers to an on-delay timer.
  • The on-delay timer is the most commonly used timer.
  • TON counts the time-based intervals as soon as the instruction becomes true.
  • Here, the output changes its state from low to high when the timer provides some time delay (instruction goes from OFF to ON state).

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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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