Programmable Logic Controller (PLC): PLC is a specialized computer used in industrial segments to control machines and process. PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks. The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC. When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes. The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language. 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.

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Answer 1

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Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

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EX:[AE00]=fa50h number of ones =1111 1010 0101 0000 Physical address=4AE00h=4000h*10h+AE00h Mov ax,4000 Mov ds,ax; DS=4000h mov ds,4000 X Mov ax,[AE00] ; ax=[ae00]=FA50h Mov cx,10; 16 bit in decimal Mov bl,0 *: Ror ax,1 Jnc ** Inc bl **:Dec cx Jnz * ;LSB⇒CF Cf=1 ; it jump when CF=0, will not jump when CF=1 HW1: rewrite the above example use another way

EX2: Write a piece of assembly code that can count the number of ones in word stored at 4AE00h

Write a program that simulates a Magic 8 Ball, which is a fortune-telling toy that displays a random response to a yes or no question. In the student sample programs for this book, you will find a text file named 8_ball_responses.txt. The file contains 12 responses, such as “I don’t think so”, “Yes, of course!”, “I’m not sure”, and so forth. The program should read the responses from the file into a list. It should prompt the user to ask a question, then display one of the responses, randomly selected from the list. The program should repeat until the user is ready to quit. Contents of 8_ball_responses.txt: Yes, of course! Without a doubt, yes. You can count on it. For sure! Ask me later. I'm not sure. I can't tell you right now. I'll tell you after my nap. No way! I don't think so. Without a doubt, no. The answer is clearly NO. (You can access the Computer Science Portal at www.pearsonhighered.com/gaddis.)

Answer 2

Question

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Answer 6

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Answer 7

Chapter 7, Problem 6RQ

Program Plan Intro

Programmable Logic Controller (PLC):

PLC is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by controlling programming language.

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.

Answer 8

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Answer 9

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

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Answer 13

Ch. 7 - Prob. 1RQ Ch. 7 - Prob. 2RQ Ch. 7 - Prob. 3RQ Ch. 7 - Prob. 4RQ Ch. 7 - a. What are the two methods commonly used to...Ch. 7 - Prob. 6RQ Ch. 7 - Prob. 7RQ Ch. 7 - Prob. 8RQ Ch. 7 - For a TOF timer: a. When is the enable bit of a...Ch. 7 - Explain what each of the following quantities...

Solution Summary: The author explains the basic architecture of a PLC — it consists of an input-output interface module and small Central Processing Unit (CPU).

Concept explainers

Explanation of Solution

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...

Want to see the full answer?

Chapter 7 Solutions

Solution Summary: The author explains the basic architecture of a PLC — it consists of an input-output interface module and small Central Processing Unit (CPU).

Concept explainers

Explanation of Solution

b. Resetting the accumulated count to zero: The accumulated count of retentive timers can be reset to zero by using a separate reset signal. This separate signal is known as Retentive Timer Reset (RES) instruction. When RES is true, the accumulated value of the timer is reset to zero...

Want to see the full answer?

Chapter 7 Solutions

b.

Resetting the accumulated count to zero:

The accumulated count of retentive timers can be reset to zero by using a separate reset signal.

This separate signal is known as Retentive Timer Reset (RES) instruction.

When RES is true, the accumulated value of the timer is reset to zero...