USER FPGA LED I/O Node Not Able to Wire Number In

Updated Mar 12, 2018

Reported In


  • CompactRIO Chassis
  • CompactRIO Controller
  • CompactRIO Single-Board Controller

Issue Details

  • I am trying to blink the FPGA USER1 LED on my single-board RIO (sbRIO) or compactRIO (cRIO), but when I drag the I/O item from the project explorer onto the block diagram, there is only one terminal for the node. 

    If I try to create a constant or control for that input, I do not have the option to create anything.
  • When I try to control the FPGA user LED on my sbRIO or cRIO, I get a broken run arrow that points to I/O Node: Note supported fro current target.  Close the VI and reopen it in the Project Explorer window under a target that supports I/O nodes. 


Make sure the VI you are pulling the FPGA LED I/O node into is under the FPGA Target as that is the only valid location to use the I/O node.  The below image shows that the only valid location for the FPGA LED I/O Node is under Untitled 2 because that is under the FPGA Target. 


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