Converting Hex string to ASCII numeric

[JohnGalt]

The program itself seems good, except when I run it I get the following error display:
Error 85 occurred at Scan From String (arg 1) in Detail of question.vi
Possible Reasons: LabVIEW:  Scan failed.

I don't know what this means, but I cannot figure out a way to bypass it.

Thank you,
JohnGalt

Message Edited by JohnGalt on 05-17-2006 02:13 PM

[Albert.Geven]

Hi John

create an indicator on the string returned from the read, and an indicator returned from substring.

maybe no data is available! or it is not hex but pure binary

[antea06]

Hi,

as Albert told you try to put an indicator on what are coming out from visa read string and enable " '\' Display codes" option by mouse right click on that string.

That error indicates that in the string to scan there is a character not of the type you specified (in that case not HEX, not 0123456789ABCDEF). Thus, check what are coming out from your serial port.

Regards

[JohnGalt]

I think I figured out the problem with the converter VI. It recieves the data as ASCII characters rather than their hex equivalents. I don't know how to convert those so the hex equivalents of the original ASCII characters become the ASCII characters in a new string. Is there a way I can do this?

[Albert.Geven]

Hi John

can you send a few strings (complete) and a guess of the value you think it should be?

I guess it is  just combining the values in a correct way.

e.g. put the strings in an array of strings on a frontpanel or use a few frontpanels.
of course with the output string in an indicator like I already said.
before saving "make current values default" (in operate) 

[JohnGalt]

Thanks. I seem to have it figured out now, and it seems to be working. Thanks for all the help.

JohnGalt