Visualizing Live Data with Indicators and Graphs

Add and configure indicators and graphs on the Screen document to visualize data from your acquisitions in real time.

Note The amount of data you can pause, analyze, and view on a graph is determined by the history length. Refer to Setting the Graph History Length for information on how to adjust the history length.
Before you begin, add and configure channels to your FlexLogger project.
  1. On the Screen document, select an indicator or graph from the palette located on the left side of the window.
    FlexLogger includes the following graph types.
    Table 44. Graph Types You Can Add to the Screen Document
    Graph Type Description
    High-Speed Graph Visualize large amounts of data over short time periods.
    Long History Graph Visualize data over extended time periods.
    Frequency Spectrum Graph Visualize the frequency spectrum of your signals. Refer to Frequency Spectrum Graph for additional information on how FlexLogger generates this type of graph.
    XY Graph

    Visualize data from one or more channels relative to the data of another channel.

    Note To maintain performance, data is downsampled using a configurable finite impulse response (FIR) filter.
  2. Drop the indicator or graph in the location you want on your Screen.


    When you place an indicator or graph, FlexLogger opens the associated channel mapping window.
  3. Select one or more channels to map to the indicator or graph. After you select a channel, you will see the signal on the indicator or graph.
  4. Optional: To customize indicator or graph settings, click the item and modify settings in the Item configuration pane located on the right side of the Screen window. If the Item pane is not visible, click Expand to view the pane. The configuration options are specific to the part of the item you selected.
  5. Optional: To further customize different parts of an indicator or graph, right-click the part you want to customize and select options from the menu.
  6. Optional: To pause a graph and view the graph history, click Hold Data and use the pan controls.