Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 11, Problem 10RQ
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 Programmable Logic Controller (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.
Clear instruction:
- The clear instruction is used to set or reset all the bits of the word in the destination to zero.
- It is denoted as CLR.
Destination:
- Destination refers to the address where the results of the instruction are stored.
- For example, if 1+1=2; then the value 2 is automatically stored in the destination address location.
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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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- The instruction that moves each bit to the right, copies the lowest bit into the Carry flag, and copies the Carry flag into the highest bit position is the one that does this.arrow_forwardPlease read the instruction below. Thanksarrow_forwardThe program counter (PC) contains the address of the next instruction -pair to be fetched from memory? a. True O b. falsearrow_forward
- please read the instruction carefully and answer the questionarrow_forwardin 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,arrow_forwardThe following instruction is in valid form (legal form) CWD Select one: O True Falsearrow_forward
- only one of the following statements is false according to the Sequential circuit. a. it contains at least one memory element b. it can contain multiple combinational circuit c. The output states depend on present states d. All inputs and outputs are applied at the same timearrow_forwardPlease follow the instructionarrow_forwardThe instruction used to fill DX with the its sign bit is: * CWD SAR DX, 1 SAR DX, SF SHR DX, CL SHR DX, SF SAR DX, 10 SAR DX, [SF] SAR DX, 16arrow_forward
- Do 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 a short program that uses the XLAT instruction to convert the BCD numbers 0–9 into ASCII-coded numbers 30H–39H. Store the ASCII-coded data in a TABLE located within the data segment.arrow_forward3. From the conditional jump instructions we had discussed list the jump instructions follow the comparison of unsigned numbers.arrow_forward
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