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Test Status Indicators

Hello from a non-expert Labview user

I am using LabView to capture data during an impact event. I am trying to
set up a status panel with three LEDs indicating, 1) VI running and waiting
for trigger, 2) triggered and capturing data, 3) data capture complete. So
far I have been successful only in the third case as I have difficulty in
distinguishing between the waiting for trigger and capturing data states.

The system uses two 4452 boards and the basic instrument software is the
"Two DSA RTSI Trigger and Sync" example found on the NI website.

Thanks in advance

Nigel RANDELL
Project Engineer

Cranfield Impact Centre
Wharley End
Cranfield
Beds.
MK43 0JR
U.K.

Tel +44 (0)1234 756512
Fax +44 (0)1234 750944
Page 07625
605645
e-mail n.k.randell@cranfield.ac.uk
URL www.cicl.co.uk
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Nigel Randell wrote:

> Hello from a non-expert Labview user
>
> I am using LabView to capture data during an impact event. I am trying to
> set up a status panel with three LEDs indicating, 1) VI running and waiting
> for trigger, 2) triggered and capturing data, 3) data capture complete. So
> far I have been successful only in the third case as I have difficulty in
> distinguishing between the waiting for trigger and capturing data states.
>
> The system uses two 4452 boards and the basic instrument software is the
> "Two DSA RTSI Trigger and Sync" example found on the NI website.
>

Nigel,
The most likely way to do this would be to use occurances (my guess anyway).
If you have these events in some sort of loop and or /structure, I would guess
that it goes ri
ght from 1) to 2) to 3) so fast you can not see it.

#1 would be something like set Bool true, then wait for occurance of trigger
(I assume from the vi that does #2)
The trigger/capture portion sets occurance for #1, and #2 (#1 off, #2 on)
when the data capture is complete set occurance for #2 and #3 (#2 off #3 on).

I cant tell you haow to mod the VIs mentioned, I dont have them and they wont
run on my unix box (presumabley)

Kevin Kent
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