LabVIEW
Write to text file - repeat writing when operation is "open"
The reason is writes the string repeatedly is because every time the loop iterates it opens the file, goes to the end of the file, writes to the file and closes it. There is no control at all.
Do you want it to write the text to the file when the text input changes value? Maybe when some "write" boolean is pressed? You gotta trigger this off some event if you don't want it to always write the string to the file.
@zeta_6 wrote:
I just created a very simple VI which would write strings to a text file.
When I select the "open" or other operations with open, the string will be written to the text file repeatedly.
Thanks for the help!
Where do you need help? I cannot identify anything you wrote as a question, so let's look at your VI.
Your loop opens the file, sets the file position to the end, writes the string, closes the file and start over a nanosecond later. You probably could fill your HD if you accidentally keep it running. 😮
When you write repeatedly to the same file, it is much more efficient to open the file once before the loop starts, then keep writing in the loop. Now the position is automatically at the end, no need to set it. After the loop stops, close the file.
So, what was the question you had?
