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Digital I/O

Module by: National Instruments

Summary: In this lesson, you will learn about digital I/O.

Measuring and generating digital values is used in a variety of applications, including controlling relays and monitoring alarm states. Generally, measuring and generating digital values is used in laboratory testing, production testing, and industrial process monitoring and control.

Digital I/O can read from or write to a line or an entire digital port, which is a collection of lines.

You can use the digital lines in a DAQ device to acquire a digital value. This acquisition is based on software timing. On some devices, you can configure the lines individually to either measure or generate digital samples. Each line corresponds to a channel in the task.

You can use the digital port(s) in a DAQ device to acquire a digital value from a collection of digital lines. This acquisition is based on software timing. You can configure the ports individually to either measure or generate digital samples. Each port corresponds to a channel in the task.

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