EBK LOGIXPRO PLC LAB MANUAL FOR PROGRAM
EBK LOGIXPRO PLC LAB MANUAL FOR PROGRAM
5th Edition
ISBN: 8220102803503
Author: Petruzella
Publisher: YUZU
Question
Book Icon
Chapter 14, Problem 2P
Program Plan Intro

Alarm:

In a control system, the alarm refers to the messages which help to point out the fault conditions occurred in the system. An alarm summary will contain a list of time stamped active alarms in the system.

Human Machine Interface (HMI):

  • HMI is a hard-wired panel board which helps to operate the control process using a simple touch-screen on the required control icon.
  • HMI eliminates the use of hard-wired components like switches, relays, push buttons, and many such.
  • During control operations, HMI enables one to watch the operation results by means of graphs.
  • HMI communicates with Programmable Logic Controller (PLC) and I/O sensors for getting and providing information for users to view.
  • It helps in optimizing an industrial process by digitizing and centralizing data for a viewer.

Blurred answer
Students have asked these similar questions
Explain why error detectors and sensors are a drawback in control systems in a few words.
You are tasked to design a system that will monitor and regulate the air flow in a hospital ward. The design should take inputs from all of the following four sensors:  Sensor A has been set to trigger when the windows in the ward are open.  Sensor B has been set to trigger when the relative level of moisture in the air has exceeded 30%.  Sensor C is an anemometer and has been set to trigger when the rate of air flow at the ventilation grills has dropped below 20 m/s.  Sensor D is a thermometer and has been set to trigger when the ambient temperature in the ward has exceeded 20°C.  The system should operate based on the following conditions: • If the windows in the ward are closed, the system should switch on the air conditioning unit automatically if 1) the temperature is over 20°C and airflow rate is less 20m/s, or 2) temperature is over 20°C and humidity over 30%. • If the windows in the ward are open and the ambient temperature is over 20°C, the system should generate an alert.  a)…
Explain why error detectors and sensors are a drawback in control systems in a few sentences.

Chapter 14 Solutions

EBK LOGIXPRO PLC LAB MANUAL FOR PROGRAM

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning