writing strings to file

[labtech5555]

This is probably very simple but i cannot figure it out.I 'm used to line by line programming and still very new to labview

thats my excuse anyway....

I have a concatenated string that i want to append to a file.There will be several strings going to the file over time and

i want them all seperate lines.At the end of the program the file will be closed.

I am using version 8.0 and there are the following options in the File I/O menu.

Write to spreadsheet which does not work directly with strings......Write to text file which does not seem to allow appending to files.

Can anyone advise who this can be done ?      Either a text file or spreadsheet file would be fine.

Labtech5555

[MikeS81]

Hi labtech5555,

you can use the function "Write to Text File". Hope this helps.

Mike

[labtech5555]

Hi Mike,

Tried modifying your VI into my program the best i could.Possibly made a mistake which is my fault

but the data going to the file is over written everytime a new string is sent to the file.At the end of my string

i have the end of line character which i assume is correct.

Attached is a picture.

Thanks,

            Labtech5555

[MikeS81]

Hi labtech5555,

try this version. Hope it helps.

Mike

Message Edited by MikeS81 on 02-29-2008 02:18 PM

[JB]

This is the expected default behaviour when using a file refnum. See attached example that shows how to add data to the end of a file. The context help of Write to Text File will share some light.

I removed the while loop because it is not needed in your case.

[labtech5555]

Thanks Guys,

Got it working now.....Your help is much appreciated.

Labtech5555