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.