Plot electricity usage to Waveform Chart every hour of the day

[edmund99]

Hi all i would like to know what settings should i do to my waveform graph so i can display hourly electricity usage for a day. I only want 24 markers on the x axis and for this graph to only update once every  hour and reset after 24 hours. The picture bellow is something like what i would like to achieve. 

[bseguin]

No setting

use XY graph... and put time stamp in the X and Kw/h in Y.

The formatting will be done automatically. You can set custom details in the parameter of the XY graph.

Benoit

[Jits_100]

Hi,

you can directly edit the waveform graph by going to its properties and setting the X-axis to 24. Under the scales section of Graph properties make sure you remove Autoscale, set min value to 0 and max to 24. please see below 

Resetting the graph can be done via setting the property node (value) to 0. make sure you initialize a counter for each hour ticks which will reset the value for this Property node to 0.

Regards 

Jits

[crossrulz · Accepted solution]

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@edmund99 wrote:

I only want 24 markers on the x axis and for this graph to only update once every  hour and reset after 24 hours.

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Use a Waveform Chart.  Set the Update Mode to be "Scope".  That will cause the display to clear once it reaches the end of the display.  To make it even better, have a good look at my nugget here: Sporadic Waveform Chart

[edmund99]

Thanks crossrulz & everyone for the inputs, would take a look at all of them and try it in my LV programme!