Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818



Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 58, Problem 2SQ
Textbook Problem

Briefly describe a programmable controller.

To determine

Explain about a programmable controller.

Explanation of Solution


A solid-state, electronic microprocessor-based control system is known as programmable controller or a programmable logic controller (PLC). A programmable logic controller (PLC) is an example for hard real-time system because the output response depends upon the change in input conditions within a limited time period.

A programmable controller contains the components as given below:

  • Power supply
  • Input modules
  • Processor
  • Output modules
  • Programmer

The input devices such as push buttons, limit switches, and condition sensors are connected to input modules...

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