Hi hftuo.xjtu,
Can you put the same file path in the control as you have in the Filename field in the Express VI's Configure window and run your VI? Do you still get the error? Also navigate to that same path in Windows Explorer to verify that file exists. You may want to copy the path once you find the file and paste it in the Filename field or control.
Keep in mind that, as stated in the LV Help for the Write to Measurement File Express VI, "Filename input: Displays the full path to the file to which you want to write data. The Express
VI writes data to the file that this parameter specifies only if the
Filename input is unwired. If you wire the
Filename input, the VI writes data to the file that this input
specifies instead."
I hope this helps!
Kristen H.
Message Edited by Kristen H. on 03-15-2010 12:29 PM
