Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5, Problem 1RQ
What does the memory map for a typical PLC processor consist of?
Expert Solution & Answer
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
Memory map for a PLC processor:
- The memory map for a typical PLC processor includes different sections such that each section is allotted to its specific operations.
- The main sections of PLC such as Allen-Brandley includes rack based memory map and tag based memory map.
- Based on the sections of PLC divisions, the organization comes into picture.
- The memory space in each and every section is split into two different categories such as memory space for program files and memory space for data files.
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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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