Answered: 1. Create a Ladder logic using below…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

1. Create a Ladder logic using below instruction -

Function: A start, and a stop button is used for starting and stopping a motor. But make
sure that the buttons can only start and stop the motor on a positive or rising edge.
2. Briefly explain how the traffic light are working using PLC Program for Traffic Light
Control. Include a diagram to your explanation.

Function: A start, and a stop button is used for starting and stopping a motor. But make
sure that the buttons can only start and stop the motor on a positive or rising edge.
Inputs:
Function
Start Button
Stop Button
Function
Motor
Hardware
Momentary Push Button (N.O.)
Momentary Push Button (N.C.)
Hardware
Motor Relay
Outputs:
PLC Address
Q0.0
PLC Address
10.0
10.1
Tag Name
START
STOP
Tag Name
MOTOR
2. Briefly explain how the traffic light are working using PLC Program for Traffic Light
Control. Include a diagram to your explanation.

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