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Hello jonrescca, are you running emoncms locally or emoncms.org?

I'm running emoncms v7 on a local raspberry. I'm planning tu use an modified emonTXv2 board with an serial input from the P1 port on a dutch smart meter. This meter has a few outputs on it's serial port, and the gas use is an ever increasing value for cubical meters used since the meter was installed.

Please advise in how to set-up the feeds so I can have a plot on the use per day like an power input, and also the daily use for the zoom visualization widget.

It seems I need to use the 'Total pulse count to pulse increment' processor, but I'm still not sure how to set this up for my gas meter. Anyone that can show me a screendump for this?

I'll try to be a more clearer, hope that someone can shed some insight.

I want to monitor my gas use, and my meter has an output that shows the use per liter. This is an always increasing value starting from 0 the day the meter got installed. I want to plot the use of gas in a graph per time of the day, and also the total use per day. Think of the input like this:

11:00 1234
11:01 1234
…
11:33 1234
11:34 1235
11:35 1236
11:36 1237
11:37 1237
…
23:59 1237

From the above data you see I used 3 liters of gas from 11:33 trough 11:36, and it should result in a plot like this:

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Can anyone shed some light on how to configure the feeds for this? I have now only a log on the input that writes the growing total to the database.

I use a kwh to kwh/d input operator and after that a log to feed. So you got a daily report of daily use. Just the units are not right!

On a new day the values are growing till midnight.

Sorry you dont need a log to feed after kwh to kwh/d

total pulse count to pulse increment is probably what you want - it will result in a feed that looks a bit like what you've drawn.