Error -1950678970 with Shared Variable FIFO on cRIO-9082 (LabVIEW 2019 SP1)

[AustinCecil]

Hi,

I'm relatively new to LabVIEW and working on a test stand using a cRIO-9082. I'm running into an issue when trying to run our main VI that involves Real-Time Shared Variables. Specifically, I get the following error: 

This error pops up for each shared variable. I have inherited this VI, but to my knowledge the libraries and shared variables are all deployed as this VI was functional about a year ago.

The computer I have is running Windows 10 and I have LabVIEW 2019 SP1, drivers for the cRIO, the Real Time Module, and FPGA module all installed. My question is, is there something I might be missing in terms of how the host PC communicates with the cRIO to enable shared variables with RT FIFO?

[AustinCecil]

Hi,

I'm relatively new to LabVIEW and working on a test stand using a cRIO-9082. I'm running into an issue when trying to run our main VI that involves Real-Time Shared Variables. Specifically, I get the following error: 

This error pops up for each shared variable. I have inherited this VI, but to my knowledge the libraries and shared variables are all deployed as this VI was functional about a year ago.

The computer I have is running Windows 10 and I have LabVIEW 2019 SP1, drivers for the cRIO, the Real Time Module, and FPGA module all installed. My question is, is there something I might be missing in terms of how the host PC communicates with the cRIO to enable shared variables with RT FIFO?

[AustinCecil]

I'm relatively new to LabVIEW and working on a test stand using a cRIO-9082. I'm running into an issue when trying to run our main VI that involves Real-Time Shared Variables. Specifically, I get the following error:

Error -1950678970 occurred at Shared Variable in Main RT Control.vi

LabVIEW: (Hex 0x8BBB0046) Failed to load rtvarsup, which is required for Shared Variables with the Real-Time FIFO enabled.

This error pops up for each shared variable. I have inherited this VI, but to my knowledge the libraries and shared variables are all deployed as this VI was functional about a year ago. The computer I have is running Windows 10 and I have LabVIEW 2019 SP1, drivers for the cRIO, the Real Time Module, and FPGA module all installed. My question is, for this error to keep popping up, is there something that I'm clearly missing in terms of the connection between the host computer and the cRIO?

[ZYOng]

Please refrain from create multiple threads for the same question.

Duplicated with Error -1950678970 with Shared Variable FIFO on cRIO-9082 (LabVIEW 2019 SP1)

[ZYOng]

Please refrain from create multiple threads for the same question.

Duplicated with Error -1950678970 with Shared Variable FIFO on cRIO-9082 (LabVIEW 2019 SP1)

[ZYOng · Accepted solution]

The LabVIEW icon on the top left showed that you are using 64-bit LabVIEW. However, LabVIEW Real-Time Module was not supported in 64-bit until 2021, and rtvarsup is part of LVRT.

Try using LabVIEW 32-bit instead.