Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 11, Problem 5RQ
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 program based on the type of processor used.
- The data manipulation instructions are almost similar to math instructions.
- The math instruction allows the PLC to take more of conventional computer qualities.
- 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.
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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The SAR instruction is suitable for signed integers
True or False?
Please look at the question properly, it is asking for the machine code for the MIPS instruction below. Please write thorougly so I am able to understand it.
in
01: Write the code based on the logic instruction for the following program
emu8086
expression:
A = AC + (B+ C) + AC
Where: AL=16,, BL= B7, , and CL=32,
Chapter 11 Solutions
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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- What would cause the current instruction to be reset if an error occurred?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_forwardWrite the instruction format for the jump instruction.arrow_forward
- Execute the following instruction using all previous instruction format typesarrow_forwardCreate an entry for the execution cycle of the instruction "ADD E" using the Register Transfer Notation.arrow_forwardDetermine the value after the instruction (signed division). AX=0020H DL = FCH IDIV DL Select the correct response: FF08H FFF8H 00FBH 00005arrow_forward
- Assume AL=35h; CL=05. Write the content of AL after RCR AL, CL - showing the calculation steps. Assume a CLC instruction before this RCR instruction. (Note : Solve the question in paper, scan and upload along with the other Part B and C answers) A- BI E E I Earrow_forwardWrite the MIPS instructions for the following problems using arithmetic and shift instructions. Using a shift operation, write MIPS code that multiplies the number in $t0=16 by 16.arrow_forwardThe current instruction would be reset if anything went wrong, but what would that something go wrong be?arrow_forward
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