Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 5, Problem 23RQ
a.
Program Plan Intro
Programmable Logic Controller (PLC):
- Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process.
- PLC is programmable 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 run by control
programming language.
Explanation of Solution
b.
Test mode:
- Test mode is also known as virtual mode.
- This mode is used to operate and monitor the user program without energizing any outputs.
- Test mode is mainly divided into three types as follows:
- Single-step test mode:
Explanation of Solution
c.
Run mode:
- Run mode is used to execute the user program in the machine with the input devices being monitored and the output devices being energized accordingly...
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Chapter 5 Solutions
Programmable Logic Controllers
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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Similar questions
- In PLC operation retrieves the data into an output module Input scan Output scan Program scan None of the abovearrow_forward.............Control loop is a continuous cycle of the PLC reading Ladder Logic O Outputs Inputs Oarrow_forwardQ1: A) What is a PLC? List the advantage of it? B) Write the ladder diagram to design the following logic expression: F = XY + ZW + 8Z +W(Y + Z) Q2: Explain the state of the output of the ladder diagram shown in figure bellow, then drive the logic expression for the output. (where A, B, and C are switches) OUTPUT ENDarrow_forward
- * ?The entire program will be run every scan in the PLC cycle True Falsearrow_forwardPLC PROGRAM PLEASE EXPLAIN AND SKETCH Explain the functionality of set and reset instruction in PLC program. Sketch theexample of these functions .arrow_forwardPLCs use two basic types of instructions: contacts coilsDifferentiate the two types of instruction.arrow_forward
- 8- ...... can be connected to the analog ****** input of the PLC.* O Level switches Ph O Flow switches Pushbutton switches Selector switchesarrow_forwardIs logical outputs that can often be powered directly from PLC output boards Motor Starters O Servo Motors O Lights O Switches Oarrow_forwardA traffic light PLC program working with a screen will be installed. We will enter and adjust the intervals on the screen. (Red, green and yellow light flashing times). Put the every step's picture please.arrow_forward
- 1. Briefly describe the difference between the different types of counter modules used for PLCs. 2. Design a ladder logic program for a traffic light intersection. Use timers to control the duration of the green, yellow, and red lights for each direction.arrow_forwardExplain the functionality of set and reset instruction in PLC program. Sketch theexample of these functions .arrow_forwardread the instruction carefully and answer the question correctlyarrow_forward
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