Adding And Removing in a text file

Hi
I'm trying to make a VI that generates a textfile which saves some data each second and give it some timeframe so that it can maintain only the data that has been generated last 10 seconds or so
First I have made 2 different files, one is for saving some data each second into a text file, and the other one is for removing the data
but when i combined those two it doesn't seem to work.
Could anyone have a look at the file and comment on that?
thanks
Attachments:
test2.vi ‏17 KB
Time(Sub).vi ‏8 KB

A couple comments on what you are trying to do. First, doing this with a text file is going to be inherently difficult as you are going to be doing a lot of rewriting of the file. Second, having two VIs (1 to write the data and 1 to remove the old data) is a bad approach - why not design the algorithm so the file is only written to one time for each update cycle? Stop trying to make a poor design work and spend a little time thinking outside the box.
Hint: think about how you calculate a running average in LV, and what if the indicator out wasn't just an indicator but a file write?
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

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