What's New in LabVIEW SignalExpress

Publish Date: Jun 29, 2015 | 8 Ratings | 3.00 out of 5 |  PDF


NI LabVIEW SignalExpress is interactive measurement software for acquiring, analyzing, presenting, and logging data without programming. LabVIEW SignalExpress extends LabVIEW Express technology to an interactive environment to provide an easy to use, out-of-the-box software experience for data logging applications, with easy customization through configuration dialogues and drag-and-drop interfaces. The software provides a fast, simple way to configure data logging applications with tasks such as data visualization, analysis, and alarming in addition to the acquisition and logging of data. You also can generate LabVIEW graphical programming code with a single mouse click to scale and create more advanced, customizable applications.

Download a trial version of LabVIEW SignalExpress and try the new features out for yourself.

Table of Contents

  1. New Features in LabVIEW SignalExpress 2010
  2. New Features in LabVIEW SignalExpress 2009
  3. New Features in LabVIEW SignalExpress 3.0
  4. New Features in LabVIEW SignalExpress 2.0
  5. Learn More

1. New Features in LabVIEW SignalExpress 2010

Environment Enhancements

Customizing the Default Layout

You can specify a custom default layout to use any time you create a new project. If you prefer a specific layout of the LabVIEW SignalExpress environment, you can use this feature to avoid reconfiguring the environment layout every time you create a new project. Select View»Layout»Make Current Project Layout Default to set the current project layout as the default.

After you specify the default layout, you can reset a project to that layout by selecting View»Layout»Reset Project to Default Layout. You also can reset a project to the NI default layout by selecting View»Layout»Reset Project to NI Default Layout.

Data View Display Enhancements

You now can use the Display Properties dialog box and the Digital Display Properties dialog box to set display properties on all types of displays. You no longer are required to use the Properties window to set any display properties.

Data Logging Improvements

Removing Decimation Groups for Post-Processing in NI DIAdem

LabVIEW SignalExpress logs data to disk using the TDMS standard file format. TDMS is a format designed specifically for engineering data and consists of three levels of hierarchy (file, group, channel) for saving and organizing measurement data. The TDMS file format is a binary format capable of fast streaming rates.

TDSM files created from LabVIEW SignalExpress consist of seven groups of data within a single file. The first group contains all of the channels and all of the samples logged to disk. It is the only group required for off-line analysis and report. The other six groups are decimated versions of the first group. LabVIEW SignalExpress uses the decimated groups in preparing Data View displays like the historical time graph.

When you open a LabVIEW SignalExpress TDMS file in NI DIAdem, it can be confusing to see seven groups when only a single group is expected. To simplify this experience without sacrificing visualization capabilities in LabVIEW SignalExpress, you can now install the “TDMS LabVIEW SignalExpress” DataPlugin. This post-processing DataPlugin for TDMS files hides the decimation groups used by NI LabVIEW SignalExpress and provides better integration of these files into NI DIAdem and NI DataFinder.

For more information on any of the products and technologies mentioned, refer to the following links:

LabVIEW SignalExpress TDMS files contain decimated groups which are only used within the LabVIEW SignalExpress environment. These groups can be confusing when using reviewing data in environments like Excel or DIAdem.

The DataPlugin for LabVIEW SignalExpress TDMS files hides the decimated groups when loaded into DIAdem. The original file is unmodified, meaning the decimated groups still exist in case you need to reopen the file in LabVIEW SignalExpress.

Double-Clicking TDMS Files Opens File

When LabVIEW SignalExpress 2010 installs, NI registers the TDMS file format with locally installed software - either Microsoft Excel or NI DIAdem. If neither are installed, a user is prompted with a simple dialog for instructions on how to open the file. If both are installed, NI DIAdem is registered as the default software program.


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2. New Features in LabVIEW SignalExpress 2009

Environment Enhancements

“Add Display” Formatting Options

When adding new displays, users can specify the format of the display by clicking the down arrow on the Add Display button. Users select from 17 formats including graph, gauge, LED, tank, chart, and more.

Data Display Environment Enhancements

Users continue to get added flexibility to customize the UI by using the drag-and-drop layout arrangements, auto-hiding windows, and now the ability to easily remove displays.

Logging Improvements

Digital Logging

Log both analog and now digital waveforms to TDMS files with the simple click of a button.

Included Install of TDM Excel Add-In

Easily import TDMS logs into Microsoft Excel for basic graphing, math, and statistical analysis with the TDM Excel Add-In.


Favorites Palette

If you often create projects that use the same steps, you can add the steps to the Favorites palette to save the step configuration and quickly access the step.

Continuous Quality Improvement

Bug Fixes

The LabVIEW SignalExpress 2009 release builds upon the value and benefits provided by the significant number of features added in versions 3.0 and 2.0 by providing significant quality improvements. As a result of the focus, an extensive number of bugs are addressed in LabVIEW SignalExpress 2009.

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3. New Features in LabVIEW SignalExpress 3.0

Environment Enhancements

Operator Interface

The new operator interface lets you bind controls to step parameters and disable further editing of your project to ensure consistent results and further simplify user interaction.   Optionally set a password to prevent users from being able to edit step settings.

Drag-and-Drop Layout Arrangement

Customize your workspace by dragging and dropping views.  Any view, including the Project View, Channel View and Event Log, can be displayed as a floating window, docked to the side of the screen or displayed as a tab in center of the screen.

Channel View

The Channel View allows you to quickly and easily configure all of your hardware channels and shared variables.  Additionally channel configurations can be exported to Microsoft Excel and any changes made to the resulting spreadsheet can be imported back into the project.


Enhanced Cursors

Cursors can now be linked to other cursors on the same display or between cursors.  You can also export measurement values from the cursor legend to the Project View for use as inputs to step parameters.


More Flexible Features

Configure Run Dialog

Configure your project to run continuously, for a set number of iterations or for a specified amount of time.


Sequence Step

The new Sequence Step allows you to pause the execution of steps to allow multiple steps in the same project to use the same hardware.

Shared Variable support

Publish acquired data to shared variables for networked users to read or log data from other LabVIEW and LabVIEW Real-Time targets, including the new CompactRIO Scan Engine.

Improved Logging

Event Detection

Quickly locate the interesting points in your data by adding keystroke or signal-based events to your project.  LabVIEW SignalExpress saves the events in the log file along with an annotation on the graph display.

New Start and Stop Conditions

New triggers, scheduled start times, holdoff and restart behavior allow you to capture just the data you need.   Condition logic enables you to specify how SignalExpress processes multiple start or stop conditions.

More Alarm Actions

In addition to displaying a message or making a sound when an alarm occurs you now can generate a software trigger, create a snapshot or run a program.

Project Documentation enhancements

View as a printed page or web layout, resize any object, undo and new toolbar buttons make it easier than ever to report your data directly from SignalExpress. 


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4. New Features in LabVIEW SignalExpress 2.0

  • Data Logging
  • Channel View
    • The Channel View provides an integrated environment for viewing and configuring hardware channel information.
  • DAQ Assistant Integration
    • LabVIEW SignalExpress now supports full DAQ Assistant integration. The DAQ Assistant dialog boxes are fully integrated in the LabVIEW SignalExpress environment. When you install the DAQ Assistant, use the DAQmx Acquire and DAQmx Generate steps to acquire and generate signals from DAQ devices.
  • Project Documentation View
    • You can create project descriptions, display acquired data, or document your measurement results in the Project Documentation tab.
    • View a 1 minute video on creating interactive reports
  • New Data Viewers
    • Several new data viewers, including tanks, thermometers and gauges, are available for viewing scalar and time-domain data. Right-click the Data View and select Switch to choose a display.
  • Work Areas
    • Use work areas to perform multiple LabVIEW SignalExpress operations from within the same project.
  • New Steps
    • Read Shared Variables step
    • Statistics step
    • Software Trigger step
  • Step Improvements
    • Time Averaging—The Time Averaging step now accepts scalar data as an input.
    • Histogram—The Histogram step now accepts scalar data as an input.
    • User step—The User step is now called the Run LabVIEW VI step. The Run LabVIEW VI step now supports LabVIEW 7.1 and later.
    • Formula (Scalar)—The Formula (Scalar) step is now called the Formula step. The Formula step now accepts waveform data as an input.
    • Limit Test—You now can perform actions on LabVIEW SignalExpress data depending on the result of the Limit Test step. Navigate to the Actions tab of the Limit Test configuration view to configure which actions LabVIEW SignalExpress takes when a signal fails or passes a limit test.
  • Grouping
    • You can use data grouping to analyze multiple data channels at once.
  • Options Dialog Box
    • Select Tools»Options to display the Options dialog box. Use the Options dialog box to configure various LabVIEW SignalExpress options.
  • Snapshots
    • Snapshots allow you to save a record of the current values of all step outputs in your project.

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5. Learn More


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