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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Based on the search tree in Figure 1, provide the trace to find a path from the start node
S to a goal node T for the following three uninformed search algorithms. When a node
has multiple successors, use the left-to-right convention.
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We want to get an idea of how many tickets we have and what our issues are. Print the ticket ID number, ticket description, ticket priority, ticket status, and, if the information is available, employee first name assigned to it for our records. Include all tickets regardless of whether they have been assigned to an employee or not. Sort it alphabetically by ticket status, and then numerically by ticket ID, with the lower ticket IDs on top.
Figure 1 shows an ASM chart representing the operation of a controller. Stateassignments for each state are indicated in square brackets for [Q1, Q0].Using the ASM design technique:(a) Produce a State Transition Table from the ASM Chart in Figure 1.(b) Extract minimised Boolean expressions from your state transition tablefor Q1, Q0, DISPATCH and REJECT. Show all your working.(c) Implement your design using AND/OR/NOT logic gates and risingedgetriggered D-type Flip Flops. Your answer should include a circuitschematic.
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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