Best practice updating plots ?

Folks -
I'm looking for best practice advice, better yet point-me-to-the-FAQ. What's the one-true-Labview-way to keep a stacked plot of a waveform chart updated ? I've got a main loop consisting of a flat sequence, the first two frames of which which may be updating either of two 1-D arrays. There is a time axis common to both. I need both plotted soon (1-2 sec) after the update happens. RIght now, the three arrays are just shared variables , written in the subvis , while the plot is outside the flat sequence , inside the Until-stop. I put the three together into a waveform, but I'm not at all sure this is good practice . Advice ?
thanks
Alex
Attachments:
OUTLINE-PPS-V2.vi ‏74 KB

Thanks 10^6 . I am confused but have a hardware blockage to events (6133) , and can't find coherent guidance from NI on the one true path to Labview goodness, only asking stupid questions.
Whatever you are doing to the chart data does NOT create multiple traces, you create a single waveform, but writing the y data twice, the lower set simply overwriting the data wired higher up.
Ahh, thanks. Tried to find documents on how to build a waveform of multiple plots. the NI examples I've found don't have time axes. I can't find one summary document about plots, so have to try things until they work. XY charts did but Could not reliably update. Tryng to
Never hide an event structure inside a long sequence. If you would press the "commit" button during a time where the code is elsewehere, you might lock up the front panel forever.
I was afraid of that , intended on disabling the commit button except when needed (second frame) .
Among my problems are : in a 2 minute period, I wait for a switch signal external to me. That must start a sequence of waiting for another switch to close and checking a file frequently for updates. if the operator likes that new file, then commit (copy to another SV array). The second signal is my cue to set up and arm a few usb and pci digitizers. then about 30 sec of things happen in a sequence. If I could get events out of the 6133, a state machine would be possible, but NI says no, gotta poll.
What is the point for all these network shared variables?
Bind variables from subvi's to indicators.
What else needs to access those? Any other remote code?
A few are actual Network SV from elsewhere, or are local copies I make and then need on indicators.
In any case, I recommend to rearchitect this entire thing as a plain state machine. One outer loop. One case structure, and each frame a state of a single case structure. Now you only need once instance of each variable.
Yeah, that was the plan until I found out that 6133 doesn't support events. Need to try harder to re-arrange .
thanks again.

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