LogixPro PLC Lab Manual for Programmable Logic Controllers
5th Edition
ISBN: 9781259680847
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 8, Problem 7RQ
Program Plan Intro
a.
Programmable Logic Controller (PLC):
- Programmable Logic Controller (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 control
programming language.
PLC counter:
- A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true).
- The three different types of counters instructions are as follows:
- Up counter
- Down counter
- Combined counter
Program Plan Intro
b.
PLC counter:
- A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true).
- The three different types of counters instructions are as follows:
- Up counter
- Down counter
- Combined counter
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Chapter 8 Solutions
LogixPro PLC Lab Manual for Programmable Logic Controllers
Ch. 8 - Name the three forms of PLC counter instructions,...Ch. 8 - State four pieces of information usually...Ch. 8 - In a PLC counter instruction, what rule applies to...Ch. 8 - Prob. 4RQCh. 8 - When does the PLC counter instruction increment or...Ch. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
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- Give a thorough explanation of the fetch-decode-execute cycle's phases. Include details on what is happening in each of the registers in your explanation.arrow_forwardIn the event an instruction is refused, what would be the result? In the following cases, a software-managed TLB is faster than a hardware-managed TLB:arrow_forwardIf an instruction is rejected, the system records a message on VA page 30. What does this mean? In the following scenarios, a TLB managed by software would be faster than one handled by hardware:arrow_forward
- According to which instruction, each bit in an operand is shifted to its left, and the highest bit in each operand is copied into the Carry flag as well as the lowest bit position?arrow_forwardDetermine the missing instruction from line 1 to 10arrow_forwardWrite a Verilog code with testbench for 16-bit up/down counter with synchronous reset and synchronous up/down.If up/down is set the counter is up counter and if it is not set, the counter is a down counter. Execute the module code, testbench code, and the simulation results. PLEASE EXECUTE CODE IN VERILOGarrow_forward
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