EBK ACTIVITIES MANUAL FOR PROGRAMMABLE
EBK ACTIVITIES MANUAL FOR PROGRAMMABLE
5th Edition
ISBN: 8220102795983
Author: Petruzella
Publisher: YUZU
Question
Book Icon
Chapter 7, Problem 8RQ
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 Delay-OFF timer, Delay-ON timer and 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 time delay (instruction goes from OFF to ON state).

Explanation of Solution

b.

Timer-timing bit of a timer instruction:

  • When the accumulated value of a timer changes, the timer-timing bit becomes true.
  • The accumulated value refers to the current delay of the timer.
  • The timer instruction becomes true when the control line of the timer is energized by the power s...

Explanation of Solution

c.

Done bit of a timer:

  • The accumulated value refers to the current delay of the timer.
  • The preset value refers to the delay period of the timer...

Blurred answer
Students have asked these similar questions
I would like to know the main features about the following 3 key concepts:1. Backup Domain Controller (BDC)2. Access Control List (ACL)3. Dynamic Memory
In cell C21, enter a formula to calculate the number of miles you expect to drive each month. Divide the value of number of miles (cell A5 from the Data sheet) by the average MPG for the vehicle multiplied by the price of a gallon of gas (cell A6 from the Data sheet).
Microsoft Excel
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning
Text book image
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Text book image
COMPREHENSIVE MICROSOFT OFFICE 365 EXCE
Computer Science
ISBN:9780357392676
Author:FREUND, Steven
Publisher:CENGAGE L
Text book image
MIS
Computer Science
ISBN:9781337681919
Author:BIDGOLI
Publisher:Cengage
Text book image
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Text book image
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage