Use of the circular buffer for the calculation of the average of a current

[altenbach]

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@desireddy wrote:

I made the following code based on your suggestion. Correct me if I am wrong.

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That's not "code" just an image.

• If you would add a "+1" after [i], you could check for "=0" on the remainder. This is more scalable, because you only need to change a single diagram constant if needs change in the future.
• You only need one "60" diagram constant (see above)
• Instead of the "numeric", just show the digital display of the chart. (half the number of terminals!)
• Some indicators have the wrong representation
• etc.

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@desireddy wrote:

How to store the time (real clock time) along with the stored average value.?

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You are currently not "storing" anything (whatever that means). Do you want to store in a shift register? stream to a file?

[desireddy]

Thank you, I was able to plot time on x axis now.

My next question is.....How to add a second sensor reading to the above said plot. When I tried to connect another data to the build waveform, The wave form char is not displaying the two curve. It is only displaying one plot.

[RavensFan]

You are overwriting your first Y array with the 2nd Y array.

You need to create 2 waveforms.  Then use Build Array to turn them into an Array of waveforms to send to the chart.

[desireddy]

Sir, I am getting something like this(attached). Not as expected

[altenbach]

We cannot help if you keep attaching pictures instead of the actual VI. You currently have a single plot with two points.

Attach your VI and we will fix it! We won't waste our time trying to recreate your VI from scratch using a truncated picture as a guide..

[crossrulz]

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@desireddy wrote:  How to add a second sensor reading to the above said plot?

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[altenbach]

Again, your sampling rate is fixed at 1/minute (in your latest image. No way to tell what's in the other case, though), and the samples are spaced equally in time. There is no need for the gimmicky "sporadic waveform", just set t0 (from get time in seconds) and dt (60seconds) when the program starts and just bundle the two values for the chart and set the x-axis time format for absolute time.

Here's an alternative to Tim's code above. It scales better if you later decide to add more traces, for example.(Still I don't think you need any of this!!!)

[desireddy]

Thank you sir,

If one of my signal is in temperature (degree C) and other signal is in heat flux( Watts/sq.meter) , How to plot both of them in single waveform chart. with degree C scale on left Y axis and Watt/sq.meter scale on right side Y axis with time on x axis common for both

[altenbach]

right-click the y axis and select "duplicate scale" and "swap sides". Name scales as desired.

Now go to the plot legend and select the desired Y scale for the plot that should use the other scale.

[GerdW]

Hi desireddy,

1. create an additional Y axis in the chart

2. swap the side for this additional axis

3. edit the axis labels to reflect your signal names

4. assign your two plots to their axis

All this is done using a chart and its context menu…