Buffer problem and cases of ring series

Hi all

I had an interesting problem and have a moment that is difficult to find a solution and thought a pair of fresh eyes can help!  I read data during the series using VISA.  That's going well.  I do this continuously and then adding in a string.  This string, I look for new lines and pull them out of the buffer series chain.  I have then look at the lines to see if they have the appropriate orders and, if so, analyze these commands to control a box structure.

Now, here's the interesting part.  When I started, I wrote a vi to take in an arbitrary multiline string in and analyze data and sentences, and it works as expected, but when I do it with serial data direct and the ring, the case statement buffer does not.  Also, when I probe the parsed string that will control the case statement, it LOOKS right, but the case statement will not accept it.

Any thoughts would be greatly appreciated, I'm quite confused as to what is happening here.  I have attached the 2 vi.

Gurus?  Masters?

Thank you!

Jim S,.

I see a few problems.  As previously validated you should use greater or equal? instead of superior?.  The biggest problem is that you have a string constant value '\n', but the constant itself is not configured for '-' code display mode.

Tags: NI Hardware

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