Why does Error 8 pop up during routine datalogging 
Author Message
 Why does Error 8 pop up during routine datalogging

During routine datalogging of temperature, an Error 8 dialog box
suddenly pops up (sometimes after several hours of successful logging)
and causes the logging to stop, as well as freezing up the real-time
temp graph.  I have not been able to correlate the error with anything
in particular.  Can you help me troubleshot this problem?


Tue, 30 Mar 2004 22:16:30 GMT  
 Why does Error 8 pop up during routine datalogging
Error 8 is a File permission error or a DMA hardware error.  Maybe the
file that you are logging to becomes unavailable?  If you or someone
else have the file open with another application when labview tries to
write to it then it will probably give you this error.

Hope this helps point you in the right direction.

Brian



Tue, 30 Mar 2004 22:40:01 GMT  
 Why does Error 8 pop up during routine datalogging
Is by any chance you are running FastFind (or FindFast) ? It is a
beast that comes with MSOffice.

Disable it. It tries periodically to open text files to index their
content in order to speedup searchs within documents and slow down
every other application. It opens the files to read them while you are
using it and DENYING you further write access until it is finished.

An antivirus scan might the same effect.

When you open a file with LabVIEW, the default is to allow other
processes to open it simultaneously for read and write. This is seldom
required and causes this Error 8 when one process deny writes to
other. Thus when you open a file, use the deny mode and set it to
"deny read/write"(0). That will prevent other apps to use your file
while you write on them.



Tue, 30 Mar 2004 23:28:57 GMT  
 
 [ 3 post ] 

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