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Table of Contents

LabVIEW User Manual
LabVIEW Overview
LabVIEW New Features and Changes
Upgrading LabVIEW
Finding Your Way in LabVIEW
Examples, VI Templates, Project Templates, and Sample Projects
Installing LabVIEW
LabVIEW Concepts
LabVIEW How To
- LabVIEW How To
  - Setting up LabVIEW
  - Creating your project
  - Customizing LabVIEW
  - Customizing your Palette
  - Source Controls with LabVIEW
  - LabVIEW Classes
  - Block Diagrams
    - Reading from Binary Files
    - Writing to Binary Files
    - Using Configuration File VIs
    - Data Logging
    - LabVIEW Measurement Files
    - Reading Data from LabVIEW Measurement Files
    - Writing Data to LabVIEW Measurement Files
    - Reading from Spreadsheet Files
    - Writing to Spreadsheet Files
    - Streaming Data to Spreadsheet Files
    - TDM/TDMS Files
    - Streaming External Data to a TDMS File (Windows)
    - Reading from Text Files
    - Writing to Text Files
    - Converting LabVIEW Data to XML
    - Converting XML to LabVIEW Data
    - Automatically Cleaning Up the Block Diagram
    - Creating Controls and Indicators on the Block Diagram
    - Creating and Editing User-Defined Constants
    - Displaying Terminals as Icons or Data Types
    - Removing and Rewiring Block Diagram Objects
    - Inserting Block Diagram Objects
    - Replacing Block Diagram Objects
    - Resizing Nodes
    - Reusing Snippets of Code
    - Selecting the Instance of a Polymorphic VI Manually
    - Using Wires
      - Automatically Wiring Objects
      - Configuring Automatic Wiring
      - Deleting Wires
      - Displaying Terminals for VIs, Functions, and Express VIs
      - Moving Wires
      - Routing Wires
      - Selecting Wires
      - Wiring Block Diagram Objects Manually
      - Wiring Techniques to Avoid
      - Wiring Structures
      - Assigning More Than One Value to a Sequence Local Terminal
      - Failing to Wire a Tunnel in All Cases of a Structure
      - Overlapping Tunnels
      - Wiring from Multiple Frames of a Stacked Sequence Structure
      - Wiring Tunnels Automatically in Structures with Multiple Cases
  - Searching Options in LabVIEW
  - LabVIEW Misc
  - VIs
  - Objects
  - Controls and Indicators
  - Arrays and Clusters
  - Matrices
  - Formula Nodes, Expression Nodes, and Script Nodes
  - Variables
  - Numeric Data
  - Comparing functions in LabVIEW
  - Showing and Hiding Labels and Digital Displays
  - Importing Background Images for Panes
  - Importing Graphics on Linux
  - Importing Graphics on macOS
  - Importing Graphics on Windows
  - Editing the Labels of Buttons
  - Graphs and Charts
  - Changing the Numeric Representation of a Waveform
  - Acquiring or Simulating a Signal
  - Analyzing a Signal
  - Displaying a Signal
  - Filtering a Signal
  - Merging Signals
  - Splitting Signals
  - Instrument Driver Modification Instructions
  - Creating Instrument Driver Projects
  - Creating Instrument Driver VIs
  - Displaying Pixels Not Visible in a 2D Picture Control
  - Resetting 2D Picture Controls
  - Using Sound Input and Sound Output Devices
  - Creating a 3D Scene with the 3D Picture Control
  - Configuring a Camera for a 3D Scene
  - Configuring a Light Source for a 3D Scene
  - Changing the Surface Appearance of a 3D Object
  - Creating Relationships between 3D Objects
  - Adding Text to a 3D Scene
  - Configuring a 3D Scene Window
  - Changing the Mechanical Action of a Boolean Object
  - Configuring a Mixed Checkbox
  - Creating a Radio Buttons Control
  - Creating and Operating Boolean Controls and Indicators
  - Building Digital Tables
  - Listboxes, Tree Controls, and Tables
  - Structures
  - Loops
  - Subdiagram and Case Structures
  - Events
  - Strings
  - Adding Color Ramps to Dials, Knobs, and Gauges
  - Adding Sliders or Needles
  - Adding Text Labels to Numeric Objects with Scale
  - Changing Scale Limits
  - Changing Scrolling Ranges of Scroll Bar Controls
  - Characters Numeric Controls and Indicators Accept
  - Configuring the Time and Date in a Time Stamp Control
  - Displaying Higher Digits of Precision in a Time Stamp Control
  - Placing Arbitrary Markers on Scales
  - Scaling Slide and Rotary Controls and Indicators
  - Using Scroll Bar Controls
  - Using the Increment and Decrement Buttons
  - Valid Format Specifiers for Numeric Data Types
  - Empty Paths
  - Symbolic Paths
  - Display Options
  - Creating Type Definitions and Strict Type Definitions
  - Editing Saved Type Definitions and Saved Strict Type Definitions
  - Manually Updating Type Definition Instances
  - Reestablishing the Link to a Type Definition or Strict Type Definition
  - SubVI and Express VI
  - Terminals
  - Selecting a Connector Pane Pattern
  - Setting Required, Recommended, and Optional Inputs and Outputs
  - Icons
  - Menus
  - Troubleshooting
  - Documenting in LabVIEW
  - Printing in LabVIEW
  - Reports in LabVIEW
  - Adding New Exported VIs Entries
  - Editing Existing Exported VIs Entries
  - Removing VIs from the Exported VIs List
  - Adding New Machine Access List Entries
  - Editing Existing Machine Access List Entries
  - Removing Machine Access List Entries
  - Setting Machine Access for the VI Server
  - Removing Browser Access List Entries
  - Calling Shared Libraries in LabVIEW
  - Building a Function Prototype
  - Completing the.c File
  - Importing Functions from a Shared Library File
  - Example: Importing Functions from a Shared Library File
  - Troubleshooting the Import Shared Library Wizard
  - Using the Flatten To String Function
  - Creating Dotted Properties and Methods
  - Creating Properties and Methods
  - Creating Properties and Methods with the Class Browser Window
  - Registering and Handling.NET Framework and ActiveX Events
  - Creating.NET Controls in a.NET Container
  - Creating.NET Objects on the Block Diagram
  - Using Static .NET Properties and Methods
  - Loading .NET Framework 2.0, 3.0, and 3.5 Assemblies in LabVIEW
  - Loading Changes to a .NET Framework Assembly in Memory
  - Specifying Which Version of a .NET Assembly to Use
  - Debugging Calls to.NET Framework Assemblies
  - ActiveX
  - Editing Existing Property and Invoke Nodes
  - Linking Property Nodes and Invoke Nodes to Terminals
  - Connectivity in LabVIEW
LabVIEW Measurement Concepts
LabVIEW Shared Libraries
Signal Processing and Analysis
Accessing Scanned I/O Data
PID and Fuzzy Logic
Distributed System Manager Overview

Product DocumentationLabVIEW User Manual...LabVIEW How ToWiring Tunnels Automatically in Structures with Multiple Cases

Table of Contents

Wiring Tunnels Automatically in Structures with Multiple Cases

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Updated2025-04-01
2 minute(s) read

Complete the following steps to wire input and output tunnels automatically on any structure that can contain multiple cases except the Stacked Sequence structure.

After wiring the input and output tunnel in one case of the structure, right-click the output tunnel to display the Linked Input Tunnel shortcut menu.
Select one of the following wiring options from the Linked Input Tunnel shortcut menu.
- Create & Wire Unwired Cases —LabVIEW automatically wires the tunnels in any existing cases that you have not wired previously. LabVIEW also wires the tunnels in any new cases you create.
- Create —LabVIEW automatically wires the tunnels in any new cases you create. Existing cases remain unwired.
The tunnel selector cursor appears.

Note LabVIEW disables these options if there are no tunnels to which you can link.

Click the input tunnel you want to associate with, or link to, the output tunnel. White triangle glyphs appear on the input and output tunnels to indicate they are linked.

If you selected Create & Wire Unwired Cases, notice that LabVIEW wires the tunnels in all existing cases. If you add a subdiagram, or case, to the structure, LabVIEW wires the tunnels in the new cases. If you selected Create, notice that LabVIEW wires the tunnels only in new cases you add. Existing cases remain unwired.

Right-click a linked output tunnel and select Linked Input Tunnel»Find to locate the corresponding input tunnel. Right-click a linked output tunnel and select Linked Input Tunnel»Clear to remove the association between the input and output tunnels. LabVIEW disables these options if the tunnel you select does not have a linked input tunnel.


	Note If you right-click a linked output tunnel and select Use Default If Unwired, LabVIEW removes the association between the input and output tunnels.

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