Pausing Execution with Breakpoints

When looking for a problem in your code, you may have an idea of the general area where the problem exists. To help focus on this area, you can use a breakpoint to pause the VI at a specified point in the program.

When the VI reaches a breakpoint during execution, you can take the following actions:

  • Single-step through execution using the single-stepping buttons.
  • Check intermediate values on probes that you placed on wires prior to running the VI.
  • Change values of panel controls.
  • Click the Resume button to continue running to the next breakpoint or until the VI finishes running.
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You can add a breakpoint to any wire or node in the code, or in a row of a text-based programming node. Add a breakpoint by right-clicking the wire, node, or row and selecting Add breakpoint.

You can add conditional logic to a breakpoint to pause execution if a condition is met. Add a condition by right clicking the breakpoint and selecting Pause on condition. Configure the conditions of the breakpoint in the Debugging pane.