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 11, Problem 7P
Program Plan Intro
Math instruction:
- Math instructions refer to all output instructions that uses the data of two words or registers and perform the desired function.
- Math instructions are programmed based on the type of processor used.
- The data manipulation instructions are almost similar to math instructions.
- Math instructions are normally used to perform arithmetic functions on the values stored in memory words or registers.
Math functions:
The basic math functions performed by PLCs are as follows:
- Addition
- This function is used to add one piece of data to another.
- It is also called as ADD.
- Subtraction
- This function is used to subtract one piece of data from another.
- It is also called as SUB.
- Multiplication
- This function is used to multiply one piece of data by another.
- It is also called as MUL.
- Division
- This function is used to divide one piece of data from another.
- It is also called as DIV.
MOV instruction:
- Move (MOV) instruction is used to copy the data of the source register into destination register.
- Here, the contents of the source register will not be altered.
- In other words, it is used to copy the value in one word or register to another word or register.
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.
- Destination
- Destination refers to the address where the results of the instruction are stored.
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Home Work: Execute the following instruction using all previous instruction
format types:
1- X = (A + B)* (C + D)
2- S = F-(C*B)+M
3- N= (A+B*C)/ (F*E)
Given a memory load instruction, "mov R0; [R1+1000]," please give the input that should be selectedat each multiplexer. You can write "none" for the multiplexers that are not used for this instruction.(a) MUX1:(b) MUX2:(c) MUX3:(d) MUX4:
) State whether the following instructions are valid or invalid? Define the valid instructions. In case any instruction is invalid then state the reason of their invalidity.
ADD BX, [1234H]
AND 23H, AL
CMP AL, SP
JCXZ Telecom
IMUL BL
Chapter 11 Solutions
LogixPro PLC Lab Manual for Programmable Logic Controllers
Ch. 11 - Explain the function of math instructions as...Ch. 11 - Prob. 2RQCh. 11 - What standard format is used for PLC math...Ch. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 7RQCh. 11 - Prob. 8RQCh. 11 - Prob. 9RQCh. 11 - Prob. 10RQ
Ch. 11 - With reference to the instruction of Figure 11-34,...Ch. 11 - With reference to the instruction of Figure 11-35,...Ch. 11 - Prob. 1PCh. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - With reference to math instruction program shown...Ch. 11 - With reference to the math instruction program...Ch. 11 - Prob. 11PCh. 11 - Prob. 12P
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