multiple chart memory

[Roro8989]

Hi,

I have to acquire 32 signals and display it on 5 differents waveform chart with a sample rate of 100kHz. My problem is when I use 1 waveform my program works, but when I have more one waveform chart, my RAM increase continousily until I have an error of overwritten.

All my chart history lengh is 1024.

Could you help me please?

Thank you very much

Romaric GIBERT

[Broken_Arrow]

It sounds like you may be building an array inside a loop. Can you post the code?

[Roro8989]

Here is my VI

Thank you very much

[Broken_Arrow]

I don't have 2011 installed yet. I'd advise saving down to 2010 so more people can access the VI.

[Roro8989]

I haven t the VI in version 2010 in  my home. I did some screen shot

Thank you very much

Romaric GIBERT

[Broken_Arrow]

---

@Roro8989 wrote:

I haven t the VI in version 2010 in  my home. I did some screen shot

---

But you can File... Save for A Previous Version.

That will make a new folder and put the VI's in it. 

[Roro8989]

Sorry I didn t know this option.

Here is my vi in labview 2010

[Ben]

Those blue wires duplicate data.

Mod your code to use the Waveform data type (using index array to select and build array to assemble) and the memory foot print should be smaller. Not ideal but smaller.

Moving the chart updates to the consumer loop would also let you avoid the "buffer duplication on wire branch" where you split the wire to update the graph and pump the queue.

Ben

[Roro8989]

Thank you very much for your response.

If I well understood, you would like that I change the blue wire by array. Is a llike in my picture  attachment file ? Can I wire directly the output of my build array to the waveform chart?

Thank you very much

Romaric GIBERT

[Roro8989]

Hi,

I tested with your advice, change the blue wire by array but it s always the same things.

Any idea??

Thank you very much for your help

Romaric GIBERT