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This document provides a LabVIEW reference design with a focus on embedded high speed monitoring and data logging.
Many embedded data loggers include common operations like communications, configuration, acquisition, logging, error recovery, analysis and triggering. This reference design is one example presenting all these concepts working together and serves as a starting point for application development.
1. Install LabVIEW, LabVIEW Real Time and LabVIEW FPGA 2015 or later
2. Install NI-RIO 15.0 or later
3. The reference design package has dependencies with four other VI packages. These packages are available on the NI Tools Network and if your machine has network access to this repository then these packages will be installed automatically. Documentation and direct downloads for these packages are provided below.
A. NI CompactRIO Waveform Reference Library (v4.1 or later)
4. Download and install the ni_arch_ehs_logger package from the downloads section of this document.
The Embedded High Speed Data Logger Reference Design installs as a project template. A project created from this template is a local copy and can be modified without affecting the package libraries. When LabVIEW first opens begin by clicking the "Create Project" button and select the "Embedded High Speed Data Logger" from the list. It might help to filter the Sample Projects by "CompactRIO".
Figure 1: Click "Create Project" from LabVIEW's Getting Started Window
Figure 2: Filter the Project List for "CompactRIO" and Select the Embedded High Speed Data Logger Project
The LabVIEW project includes templates for the RT application, the remote applications, and the FPGA firmware. Figure 3 below shows their locations in the project and the data flow relationships between these components.
Figure 3: How the Main VIs are Organized in the LabVIEW Project
First the cRIO must have the appropriate software installed.
Figure 4: Configured cRIO Target to Run this Reference Design
Next we need to put an XML configuration file onto the cRIO target.
This reference design was created by the NI Systems Engineering group.
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Description-Separate-2Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.