NI Real-Time Controllers With Dual Color USER LED

Updated Mar 24, 2025

Reported In

Software

  • LabVIEW Real-Time Module
  • LabVIEW

Driver

  • NI CompactRIO

Issue Details

I am using the RT LEDs VI to light the USER LED on my Real-Time (RT) controller. According to LabVIEW Real-Time Module Help: RT LEDs VI, state control value 2 says that "sets the LED to the device default color 2 (if available)". What RT controllers support default color 2?

 

 
 

Solution

All cRIO, cDAQ-913X and PXIe controllers have a green default color for their User LEDs. The following RT controllers have a secondary color, yellow:

  • cRIO-902X
  • cRIO-903X
  • cRIO-904X
  • cRIO-908X
  • cDAQ-913X

For other Real-Time controllers such as PXIe, IC, CVS, etc. please refer to their user manual, since not all the models cover this feature. Only SbRIO controllers does not have secondary color in their User1 LED. 

 

Additional Information

There is no state that will automatically toggle between off and the secondary color, so you must manually program switching between state 0 and state 2 to make the light blink.

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