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remote property node update chart multiple plot

Hallo All
 
I am using LabVIEW 7.1 Prof German Version
 
Right now I am working on a problem that seems really strange for me.
For simplicity reason I am trying to update the chart value at another VI.
From main.vi the program give a waveform to another VI called sub.vi.
And then sub.vi should update a chart on main.vi based on the given waveform value.
 
It seemed that the method had already worked.
If I used single waveform (single plot), it worked really well.
 
But it really didnt worked for multiple plot.
The chart could only display zero value.
If I changed it again to single plot, it worked again.
 
If anyone had ever found the solution , please help me !!
 
I send also the VIs file in attachment.
 
Thanks in advanced
 
Regards,
Budi
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I'm not sure you can do what you want with a waveform chart.  I think you're asking it to append values to the history buffer via reference.  Maybe an easier way (while still using a sub-vi reference) would be through a waveform graph.

LV8 backsaved to 7.1 attached.
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Thanks for your help.

But thats not what I meant before.

My idea was the subVI can detect automatically which Chart / Graph in main.vi and then update it based on the same signal and chart name.
Your solution was to give reference input to sub.vi which I dont want to do it because the diagram could be more than 1 and it would be too complex.

But actually I have just found a solution with this problem.
So... it is actually really simple .. the data type of the chart should be also waveform (NOT Double !!) the chart could be updated with multiple plot from sub.vi.
If the data type of the chart is double than the chart could only display zero .. (no value)

I hope everybody undestands what I meant.

Thanks again.

Have a nice day

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