TestStand Error -63195 When Using FPGA

Updated Jan 19, 2023

Reported In


  • TestStand
  • LabVIEW

Issue Details

I am calling a LabVIEW module within a TestStand sequence. It periodically experiences a run-time error as shown below and sometimes a LabVIEW crash. What is causing this?


This indicates a problem with the memory allocation. Make sure that an FPGA reference is not opened within the Main sequence of TestStand and that the FPGA reference is closed. 


Additional Information

This problem has been reported when an FPGA reference was opened within the Main TestStand Sequence inside a loop but it was not being closed. 

This error code could also indicate that LabVIEW automatically closes the VISA session created for communicating with the FPGA backplane of the CompactRIO system. Follow the steps in Error -63195 While Running FPGA VI using Interactive Mode  to fix this.