(Hex 0xBFFF003E) Could not perform operation because of I/O error.

Question

I am seeing this error in the code attached.  I have tried to implement the fix using the following link
http://digital.ni.com/public.nsf/allkb/60DDFED7EFEFE7188625705700750821?OpenDocument.
 to no avail.
I am at a loss as to what is happening; this is a very very simple VI that is not yet even close to completion but all I am doing is starting up said board and waiting for an initial power up string to appear and I check for 4.8.0 in the string.  Where the Error first occurs is after the first read in the case structure that is looking for the start up string.
The while loop with the empty case structure is for furture commands, so there is nothing in there at this time.
Anyone have any ideas as to what my issue could be?  I feel this has to be something stupid that i am doing incorrect.
Thanks,
Bill
John 3:16
Attachments:
(Hex 0xBFFF003E).vi ‏66 KB

Answer 1

Thanks for the criticism Ravens fan, I appreciate it, being that i am somewhat of a novice with LabVIEW it helps. 
"VISA:  (Hex 0x3FFF0006) The number of bytes transferred is equal to the requested input count. More data might be available."
The above warning I got to appear when I restarted the computer and ran the test again.  I then set the expected bytes by hand and the original error appeared again.
Thank you for pointing out the dumb mistake I had with my converting to a number, I am still trying to figure out why I did that...I think I was going to try putting this into test stand for some sort of numeric limit test, but ya I don't need it.
I don't Think I need the flush buffer either here, I took it out and still no help with the error.
Also, what I didnt state in my first post was that the data is being given to me at the port, so i can perform my string test on the data in the buffer, it's just after the read the error appears so I can not continue executing the rest of my code without passing the error (Yes I can just clear the error, but that seems to not be a smart thing to do).
I also have the right port settings set and I have had problems with termination characters in the past screwing up my vi's with this particular board so I just automatically disable the termination character.
I am wondering if there is a flush buffer call in the Visa read vi?  Would this cause me my error?
Could null characters in the data being sent back give me the error?  My data from the buffer is as seen below in code display
\00\00XXXXX\s"XXXXXXXXXXX"\s\s4.8.0\sFT\r
John 3:16