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Deltas (for RFXmeter)?

Posted: Mon Sep 21, 2009 3:05 pm
by Headworx
Hi,

Is it possible to calculate / display deltas? Something like hourly / daily power consumption? RFXMeters report a counter value representing total power consumption since the beginning... While I would like to calculate / plot graphs representing hourly power consumption... so I would have to subtract previous_reading(an_hour_ago) from the current_reading(current_time). Is there a way to handle this properly?

Cheers,
Headworx

Re:Deltas (for RFXmeter)?

Posted: Mon Sep 21, 2009 7:25 pm
by admin
data sensors are handled as "numerical value" in graphs and you can select "deltasum" for these which plots the delta for the period selected as "time resolution".

Re:Deltas (for RFXmeter)?

Posted: Mon Sep 21, 2009 7:29 pm
by Headworx
Oh that is great, thanks!

Re:Deltas (for RFXmeter)?

Posted: Mon Sep 21, 2009 10:03 pm
by HeinrichH
Yes, that's works great, see graphic... Image