strain gauge rosette vi help

[surffl]

Just wanted to see if anyone has any ideas on a problem I am having. I am collecting data from 3 strain gauges in a rosette configuration and trying to use the strain gauge rosette vi found on the NI website as a sub-vi to calculate the max shear value and then write this data to a file. I am writing the raw strain gauge data to another file successfully but getting null values written to the file from the rosette sub-vi. Is there some special data handling that must be done to write to a file from a sub-vi or am I doing something even more obvious wrong?

The vi and data file being written from the sub-vi are attached.

Thanks!!

[GerdW]

Hi surffl,

I wouldn't call that bunch of ExpressVIs a "program"...

Let's see what you have:

Your DAQ-assi gives you a DDT, which you split into 3 signals. Then you use some SelectSignals expressVIs to select some signal(s) from your already splitted signal??? The upper one is configured to select the first of 8 signals, but it only has one signal at its input!

Ok, think about that yourself...

Then to proceed you split again your signal that comes from the upper SelectSignal block. What the heck? First you select a single signal then you split that signal into two? What kind of result do you expect here???

Come on, do some real programming! Or re-think what your VI is supposed to do...

[surffl]

GerdW,

Thank you for being so unhelpful! Having only been using the program for 2 days now I have no idea of what can or should be done with the program. I'm sure you have a great future helping people on this forum...or not.

Usually Germans are so much nicer...

[nyc_(is_out_of_here)]

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@surffl wrote:

GerdW,

Thank you for being so unhelpful! Having only been using the program for 2 days now I have no idea of what can or should be done with the program. I'm sure you have a great future helping people on this forum...or not.

Usually Germans are so much nicer...

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Well, then bye bye.

[GerdW]

Hi surffl,

you asked for "ideas on a problem I am having" and I noted several of those ideas by analyzing your VI and pointing some of the problems encountered. Now you call me "being so unhelpful". If you would have said "unpolite" or "harsh" or "straightforward" I would have agreed...

It's not my fault that you didn't start with all those (free!) basics courses for LabVIEW offered by NI. Now it seems you will get a lot of time to go through all of them...

[GerdW]

Hi surffl,

You wrote "I have no idea of what ... should be done with the program". Who else should know this when it's not you?