Boolean "Until Released" Mechanical Action Not Supported on Real-Time Targets

Updated Nov 3, 2023

Reported In

Software

  • LabVIEW Real-Time Module

Issue Details

I have a VI that contains a Boolean control with a "Latch Until Released" or "Switch Until Released" mechanical action. When I try to run the VI on a real-time target, I receive the following error message:

Solution

The mechanical actions "Switch Until Released" and "Latch Until Released" are not supported on real-time targets. To change the mechanical action, right-click on the Boolean front panel object and select Mechanical Action, then select a supported mechanical action.

Additional Information

  • Because the "Switch Until Released" and "Latch Until Released" require the front panel to wait for the release of the Boolean, the main application thread is starved and real-time priority loops will not execute as designed.
  • Boolean Controls and Indicators describes the differences between each mechanical action.

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement or active software subscription may be required, and support options vary by country.