Unwanted data at EOF after a binary write.

[Rodnebb]

Hi,

I need to write a binary file, which must be identical to a binary file created by another program.

I start by Open/Create/Replace File, with "write only" and "replace or create" set.

Then I run a loop with "Write to Binary File", w/ big endian order, "prepend array or string size == F", file data given as refnum.

In the end I close the file.

The problem is that at the end of the file I have a bit of data (9 bytes) that are not supposed to be there.

I am assuming these bytes are placed there by LabVIEW, in the same way leaving "prepend array or string size" to the default T will give some data at the start of the file.

Is this the case - and how can I get rid of this data?

[TCPlomp]

I don't think it is placed there by the open close routine, what are those bytes?
And how do you write your value (screenshot of the code?)

Ton

[GerdW]

Hi Rod,

how do you supply the data to write? Do you really do this by refnum?
If so, you maybe use some 'flatten to string' mechanism and thus prepending some bytes (type description)!

Please provide some source code, it's much easier then to give advice...