Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 10, Problem 4P
Program Plan Intro
EQU instruction:
- The Equal (EQU) instruction is used to test whether the given two values are equal or not.
- If the given two values such as Source A and Source B are equal then, the instruction is logically true. Otherwise, the given instruction is logically false.
Terms used:
The following terms are used in the instruction
- Source A
- Source A refers to the address of the first piece of data that is used in the instruction.
- Source B
- Source B refers to the address of the second piece of data that is used in the instruction.
Given:
The instructions used in the given data compare program are the input instructions, which are used to compare two different numerical data values and it compares the words stored in the data to take decisions.
Explanation of Solution
b.
Status of switch S1:
No, it is not required that the switch S1 must be closed to change the numeric value stored in “S...
Explanation of Solution
c.
Numbers to be set on the thumbwheel:
The thumbwheel switch is required to be set on with the Binary Coded Decimal (BCD) value “004” in order to turn on the pilot light.
Explanation:
The given ladder logic diagram has been modified as shown below:
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Chapter 10 Solutions
Programmable Logic Controllers
Ch. 10 - In general, what do data manipulation instructions...Ch. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Prob. 4RQCh. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 18RQCh. 10 - Prob. 19RQCh. 10 - Prob. 20RQCh. 10 - Prob. 21RQCh. 10 - Prob. 22RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Write a program that will cause a light to come on...Ch. 10 - Write a program that will cause a light to come on...
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Similar questions
- destination register after each of the following instructions executes in sequence, given that CL, DX, and AL are initialized to 3, 1001111010111100, and 01010111 respectively? Leave your answer in binary form for this question rol dx, clarrow_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_forwardState Is it True or False that the PUSH instruction does not support an immediate operand?arrow_forward
- If an instruction is not accepted and it writes to VA page 30, what will happen? A TLB that is handled by software would perform better than a TLB that is controlled by hardware in the following situations:arrow_forwardWhat happens to the Carry flag when the SHR AX,1 instruction is executed?arrow_forwardA notice is recorded on VA page 30 if an instruction is denied. Why does this matter? A TLB controlled by software would operate more quickly than one controlled by hardware in the following scenarios:arrow_forward
- What happens if an instruction isn't received, and it's recorded on VA page 30? Software-managed TLBs are quicker than hardware-managed TLBs in the following scenarios:arrow_forwardIf anything went wrong during the current instruction, what would happen to force a restart?arrow_forwardI am still getting the same wrong output using the updated code that you provided. I moved the andi instruction after the srl instruction. This is the code that you provided with the fix: .data .globl main .textmain: # compute the next state of the LFSR for each input state li $a0, 0x00000001 jal lfsr_next_state move $t0, $v0 li $a0, 0xdeadbeef jal lfsr_next_state move $t1, $v0 li $a0, 0x200214c8 jal lfsr_next_state move $t2, $v0 li $a0, 0x00000000 jal lfsr_next_state move $t3, $v0 # print the output states li $v0, 1 move $a0, $t0 syscall li $v0, 1 move $a0, $t1 syscall li $v0, 1 move $a0, $t2 syscall li $v0, 1 move $a0, $t3 syscall # exit the program li $v0, 10 syscall # Function to compute the next state of an LFSR# Input parameter: $a0 = current state# Output:…arrow_forward
- How does it work if an instruction doesn't get the OK from the person who wrote it? People who use a software-managed TLB would find that it would be faster than a hardware-managed TLB in these situations.arrow_forwardIn what way would a procedure work if the RET instruction was left out?arrow_forwardDo you know what would happen if an instruction was rejected? TLBs controlled by software are quicker than those controlled by hardware in the following situations:arrow_forward
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