Programmable Logic Controllers - With Access
5th Edition
ISBN: 9781259933523
Author: Petruzella
Publisher: MCG
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Chapter 5, Problem 8P
Explanation of Solution
a.
Required instruction:
The required instruction for accomplishing the desired task is “Examine If Open (XIO)”.
Because of the following reasons
- When the conveyor mot...
Explanation of Solution
b.
Required instruction:
The required instruction for accomplishing the desired task is “XIC”.
Because of the following reasons
- In this case, the pushbutton is normally open switch...
Explanation of Solution
c.
Required instruction:
The required instruction for accomplishing the desired task is “XIC”.
Because of the following reasons
- In this case, the pushbutton is normally closed switch.
- While at rest, the push button applies power to the input module and the data table bit is ON...
Explanation of Solution
d.
Required instruction:
The required instruction for accomplishing the desired task is “XIC”.
Because of the following reasons
- In this case, the limit switch is normally closed...
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RB4 is connected to a pulse generator and pin RB1 is connected to a led, write a program to toggle the led on the falling and rising edge of the pulse (using interrupts).
A circuit has two pushbutton switches connected to pin PA2 and PA3 and two LEDs connected to pin PC0 and PC1 of the AVR ATmega16 microcontroller. Write a program to control the LEDs as follows; blink PC0 LED if the PA2 pushbutton is pressed with 2 seconds total delay time for every blink and blink PC1 LED if the PA3 pushbutton is pressed with 300ms total delay time for every blink.
The method which the processor continually checks the status flags in each module to find which one caused the interrupt is called ---------
a.software Polling
b.bus master
c.Echoing
d.Check INT
Chapter 5 Solutions
Programmable Logic Controllers - With Access
Ch. 5 - What does the memory map for a typical PLC...Ch. 5 - Compare the function of the PLC program and data...Ch. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - a. What information is stored in the input image...Ch. 5 - a. What information is stored in the output image...Ch. 5 - Prob. 7RQCh. 5 - List four factors that enter into the length of...Ch. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Answer the following with regard to the Examine If...Ch. 5 - Answer the following with regard to the Examine If...Ch. 5 - Answer the following with regard to the Output...Ch. 5 - A normally closed pushbutton is connected to a PLC...Ch. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Explain the purpose of Windows based programming...Ch. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - Assign each of the following discrete input and...Ch. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Redraw the program shown in Figure 5-57 corrected...Ch. 5 - Redraw the program shown in Figure 5-58 corrected...Ch. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8PCh. 5 - Write the ladder logic program needed to implement...
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