Example Code

Correlated DO Multi Channels with Alternating Finite Pulse Train

Products and Environment

This section reflects the products and operating system used to create the example.

To download NI software, including the products shown below, visit ni.com/downloads.

    Hardware

  • Data Acquisition (DAQ)

    Software

  • LabVIEW

    Driver

  • NI DAQmx

Code and Documents

Attachment

Overview
This example demonstrates how to output a finite pulse train to a digital line, and then to another digital line, and repeat indefinitely

Description:
The purpose of this example is to correlate a digital output with a counter output task. These is made possible by creating a continuous pulse train output at the desired frequency on a counter, and then use the counter's internal output as the sample clock source for a digital output task.  In this case, it will send 2 pulses high on line0 and then 2 pulses on line1.

Steps to Implement or Execute Code:
To implement this example:

  1. Choose the Digital Output Lines and Counter channels on the card to use
  2. (Optional) Set the rest of the parameters as needed
  3. Create a digital pattern on the port by wiring the information to the data input of the DAQmx Write instance
  4. Run the VI
  5. (Optional) Turn on the Highlight Execution to see the flow of the VI


To execute this example:

  1. Install the required software.
  2. Connect the DAQ hardware that supports the Counter and DIO features
  3. Confirm the connection with the MAX with TestPanel
  4. Open the VI and refer the Implement Steps

 

Requirements
Software
LabVIEW 2012 or compatible
NI-DAQmx 9.0 or compatible

Hardware
cDAQ with C series Counter Input and Digital Input Output Module

 

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**This document has been updated to meet the current required format for the NI Code Exchange.**

Adam
Academic Product Manager
National Intruments

Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.