Industrial Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Study Guide

Question: 1 / 400

In a PLC, how is a discrete input or output represented when in the ON condition?

As a logic 0

As an analog value

As a logic 1

In a PLC (Programmable Logic Controller), a discrete input or output that is in the ON condition is represented as a logic 1. This is because discrete signals are digital in nature, meaning they can only be in one of two states: ON or OFF. The ON state corresponds to a logic high, which is denoted as logic 1 in binary representation.

This binary representation is fundamental in digital systems, where it is used for processing and controlling various automated processes. It allows for clear and concise communication of the state of inputs and outputs within the PLC.

Analog values represent a continuous range rather than discrete states, thus not applicable here. While a binary signal indeed describes the ON/OFF nature of discrete inputs and outputs, the emphasis in this context is on the specific representation of the ON state, which is defined as logic 1.

Get further explanation with Examzify DeepDiveBeta

As a binary signal

Next Question

Report this question

Download Industrial Maintenance Technician Practice Test PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy