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Error with FPGA Reference node

Hello to everyone:

I wrote an FPGA VI which feedbacks a plant with a relay signal or with a PID signal. A DMA FIFO is used to monitor the data ( process variable& controller output, or response to relay & relay signal , depending on which mode the VI is running).

When running the VI , I have the following error message:

Error -1073807346 occurred at VISA Open in nirioIntfcOpen.vi:2->Host.vi

Possible reason(s):

VISA:  (Hex 0xBFFF000E) The given session or object reference is invalid.


It seems there is some sort of problem with the call to the FPGA VI made from the host, but I do not understand the meaning of the error message. I would feel very thankful if someone may be able to give a way to avoid this error.

Thanks for your attention.
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Hi,

Look at this KB:

http://digital.ni.com/public.nsf/websearch/8203C68AF60F4259862571490077FFF3?OpenDocument

Hopefully that will solve your problem

Regards,

Jaime Cabrera

Ni Applications Engineering Spain

Regards,

Jaime Cabrera

NI Applications Engineering Spain
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