LED Indicators
PrintOverview
This document is part of a comprehensive tutorial on Industrial Digital I/O and Counter/Timer hardware. Learn about National Instruments product offerings for digital and timing I/O, the Industrial Feature Set including watchdog timers and isolation, complementary devices like relays, solenoids and encoders, concepts like sinking and sourcing, and see how these devices can be used in your industrial application.
For more information return to the Complete Industrial Digital I/O and Counter/Timer Tutorial.
Table of Contents
Introduction to Indicators
Indicators provide a visual indication of the progress or status of a process. Indicators like LEDs are very common in industrial applications.
Recommended NI Products that Connect to Indicators
NI 6509
NI 6514
NI 6515
NI 6528
Technical Overview
A common example of an indicator in computing machinery is an LED, or Light-Emitting Diode. An LED is an indicator that emits various colors of light depending on the voltage and the different semi-conductor materials used to make the indicator. LED indicators can represent state (on/off) and alpha-numeric readouts.
Find an Indicator
Search for Indicators in GlobalSpec
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