Problems with execution of software trigger in a ni-9233 module on C-rio 9104

Question

Hi, i'm creating a project for vibration measurements of 4 accelerometers with c-rio 9104 and Ni-9233 module. I need to execute a trigger event (start the signals acquisition when signal crosses a trigger level). Few time ago I used NI- 9233 module with USB connector and I found an exemple that was perfect for my application (<link no longer exists>). Now I tried to modify this VI for make it compatible with FPGA system but SW_trig VI doesn't work. I thought I have a problem when I call FIFO in SW_trig VI because I called it in the Host VI.Is it right? I need help
Thanks
MATHB
below i listed VIs screenshots 
Attachments:
Host (PC)2 vi.jpg ‏289 KB
SW_trig.JPG ‏197 KB

Answer 1

Thanks for your post.  FPGA and CompactRIO add some great capabilities, yet we also need to think about them a bit different. 
To make things easier, we developed this reference example, which we ask you to consider:
http://zone.ni.com/devzone/cda/tut/p/id/9196
For the trigger - a tachometer for example, we also have a trigger VI that can be used in FPGA
http://zone.ni.com/devzone/cda/epd/p/id/2326
For the RT side, our Sound and Vibration Measurement Suite also has tachometer trigger VIs and angular alignment VIs that might be helpful. 
Let us know if these are useful. 
Preston Johnson
Principal Sales Engineer
Condition Monitoring Systems
Vibration Analyst III - www.vibinst.org, www.mobiusinstitute.com
National Instruments
[email protected]
www.ni.com/mcm
www.ni.com/soundandvibration
www.ni.com/biganalogdata
512-683-5444