Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 6, Problem 10RQ
Program Plan Intro
Switch:
- A switch refers to an electrical device which can make or break an electrical circuit.
- Switches can be operated manually or by some sensing element such as pressure, temperature, or flow.
- A switch consists of one or more sets of contacts that can be operated simultaneously, sequentially, or alternately.
Explanation of Solution
b.
NC pushbutton switch:
- The abbreviation NC stands for a Normally Closed pushbutton switch.
- It will be initially at closed contact and will be opened when the switch or coil is energized...
Explanation of Solution
c.
Break-make pushbutton switch:
- Break-before-make pushbutton is a switch whose top level section contacts are Normally Closed and bottom level section contacts are Normally Open.
- The top level contacts will open before the botto...
Explanation of Solution
d.
Three-position selector switch:
- In order to open and close the contacts of an attached contact block, a selector switch operator is rotated.
- The operator knob is turned to right or left to establish a switch position.
- Selector switch consists of two or more selector positions...
Explanation of Solution
e.
NO limit switch:
- Normally Open limit switch refers to a commonly used industrial control device.
- It is used to operate when a predetermined limit is reached.
- It is started by the contact with an object such as a cam...
Explanation of Solution
f.
NC temperature switch:
- NC temperature switch refers to a switch which is activated at specific temperature.
- Applications of temperature switches include maintaining the desired temperature range of solids, liquids, gases, or air...
Explanation of Solution
g.
NO pressure switch:
- NO pressure switch refers to a switch which is activated at specific pressure.
- It is used to control the pressure of gases and liquids...
Explanation of Solution
h.
NC level switch:
- NC level switch is designed to sense liquid level in vessel.
- It provides automatic control for motors which transfers liquids from sumps into tanks...
Explanation of Solution
i:
NO proximity switch:
- NC proximity switch does not need any physical contact to sense the presence or absence of a target.
- Here, any object such as vibrations, liquids, or chemicals near to the proximity switch range will respond and act as ON-OFF switch...
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Students have asked these similar questions
Alphabetic Telephone Number TranslatorMany companies use telephone numbers like 555-GET-FOOD so the number is easier for their customers to remember. On a standard telephone, the alphabetic letters are mapped to numbers in the following fashion:
A, B, and C = 2
D, E, and F = 3
G, H, and I = 4
J, K, and L = 5
M, N, and O = 6
P, Q, R, and S = 7
T, U, and V = 8
W, X, Y, and Z = 9
Write a program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The application should display the telephone number with any alphabetic characters that appeared in the original translated to their numeric equivalent. For example, if the user enters 555-GET-FOOD, the application should display 555-438-3663.
I would like help to resolve the following case
7. Character AnalysisIf you have downloaded the source code you will find a file named text.txt in the Chapter 08 folder. Write a program that reads the file’s contents and determines the following:
The number of uppercase letters in the file
The number of lowercase letters in the file
The number of digits in the file
The number of whitespace characters in the file
Chapter 6 Solutions
Programmable Logic Controllers
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - What do the abbreviations NO and NC represent when...Ch. 6 - Prob. 10RQ
Ch. 6 - Prob. 11RQCh. 6 - Prob. 12RQCh. 6 - Compare the operation of a photovoltaic solar cell...Ch. 6 - What are the two basic components of a...Ch. 6 - Prob. 15RQCh. 6 - Give an explanation of how a scanner and a decoder...Ch. 6 - Prob. 17RQCh. 6 - Prob. 18RQCh. 6 - Prob. 19RQCh. 6 - Prob. 20RQCh. 6 - Prob. 21RQCh. 6 - Prob. 22RQCh. 6 - Prob. 23RQCh. 6 - Prob. 24RQCh. 6 - Prob. 25RQCh. 6 - Prob. 26RQCh. 6 - Prob. 27RQCh. 6 - Prob. 28RQCh. 6 - Prob. 29RQCh. 6 - Prob. 30RQCh. 6 - Prob. 31RQCh. 6 - Prob. 32RQCh. 6 - Prob. 33RQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Design a PLC program and prepare a typical I/O...Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8P
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