major and minor increment printout

[dodo99]

I am new to Labview, only have a couple months experience using Labview 7.1.

My application is to use ultrasound to inspect a component.  For every component inspected, an ultrasound wave chart is print out.  I define my Y axis max and min, also define Y axis major and minor increment as 20 and 4 respectively(see attached file).  However, the very first print out is not what I defined.  It always the major is 10 and minor is 2.5 but the Y axis max and min are still correct.  For the second print out and there after.  They are all correct.  Did I miss something here?

Any help si appreciated, thank you.

Tony

[dodo99]

sorry, I missed the attached file.

[Dennis_Knutson]

You have a dataflow problem. Because you do not have the error in connection of the property node wired to anything, it can actually execute at any time. It's obviously being called after the data is written in this case but that could change at any time. Always use dataflow to control execution order. That's a basic concept in LabVIEW.