LogixPro PLC Lab Manual for Programmable Logic Controllers
LogixPro PLC Lab Manual for Programmable Logic Controllers
5th Edition
ISBN: 9781259680847
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 8, Problem 10RQ
Program Plan Intro

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

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In 32-bit MSAM, You were given the following negative array. write a program that converts each array element to its positive representation. Then add all these array elements and assign them to the dl register. .data    myarr sbyte -5, -6, -7, -4.code     ; Write the rest of the program and paste the fully working code in the space below.   the dl register should have the value 22 after summing up all elements in the array.
Microprocessor 8085 Lab Experiment Experiment No. 3 Logical Instructions Write programs with effects 1. B=(2Dh XOR D/2) - (E AND 2Eh+1) when E=53, D=1Dh 2. HL= (BC+HL) XOR DE (use register pair when necessary), when BC=247, HL 516, DE 12Ach 3. Reset bits 1,4,6 of A and set bits 3,5 when A=03BH Write all as table (address line.hexacode,opcede,operant.comment with flags)
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