how can I use "write to spreadsheet" during the data is taking but not the end of all the loops

[Member]

Hi,
I have to run an experiment on Labview 6 or 5. I don't have Labview 7 on that computer for some reason. My experiment is talking about 1000 hours, and I have a probelm on storing the data. Right now I am using "Write to spread sheet" and I set the "append" to false. And the data is installed at the end of the experiment, that means after 1000 hours. In the mean time if somthing oges wrong like power cut or what, I will lose all the data. So what I want to do is to save the data evertime when the data is took. I tired to set the "append" to true, but it does not let me to choose the "file path"--- when I choose this and select write on new or excisting file, it said" you may not be able to save on a exciting file" and it does not let me create a new file either. If anyone have the lidea like how can I use the "wrtie to spreadsheet" function and at the same time can install the data everytime inside the look, please let me know. Thanks alot.

KL

[Brett_B.]

KL,

It sounds like you want to periodically save your data so it is in smaller files. (great idea) For this operation you will not want to append the data...if something happens to your system while the file is open it could become corrupt and ruin all the data. You need to write the new block of data to a new file every time. Now...this depends on how big your data is...if you only have like 500k of data to write in a block you should probably write several blocks before starting a new file. I don't know enough about how much data you are acquiring. In either case...the write to spreadsheet file.vi will need a different name each time it is called and you will not want to append. Append = false.

-Brett