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Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE [message #79684] Thu, 22 March 2012 18:52 Go to previous message
Heinz Stege is currently offline  Heinz Stege
Messages: 189
Registered: January 2003
Senior Member
On Thu, 22 Mar 2012 13:30:21 -0700 (PDT), Erini Lambrides wrote:

> Hello all, I am getting this error message when i attempt to .run my
> procedure compare_target_offset2
>
> Compiled module: COMPARE_TARGET_OFFSET2.
> % Compiled module: $MAIN$.
> % DC_WRITE_FREE: Variable is undefined.
>
>
> and the same for DC_WRITE_FIXED, when I try to write my data in a
> variable to a .txt file. These two functions should be in the pv wave
> library - I have version 9.00.
>
> here is how I use it within the code:
>
> status= DC_WRITE_FREE('C:\Cryo\SphereCenterData
> \referencetargetdata.txt',rtar)
>
> I apologize now if it's a silly mistake. Thanks!

In PV-Wave DC_WRITE_FREE generates such an error message, when there
is an undefined variable in the parameters. Are you sure, that you
assigned any value to rtar? Can you include the statement "info,rtar"
before calling DC_WRITE_FREE to see if it is defined or undefined?

HTH, Heinz

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