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Pulse count reset to zero

emonhub
Tags: #<Tag:0x00007f10a7a92bd0>
(Ari-Matti Husa) #1

Yesterday, we had a very short “blackout” - not even all of my devices rebooted. EmonPI did, however, and the pulse count was reset to zero after reboot, which, in turn, of course messed up many things in emoncms.

Is there any way to prevent this from happening again?

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(Stuart Robinson) #2

I’ve also experienced this recently with two power cuts and the pulsecount reset itself which messed up the things, any help also appreciated

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(Paul) #3

Look at using the “Wh Accumulator” or “Total pulse count to pulse increment Count” processes, they are designed to accumulate the increment since the last value rather than using the pulse count directly.

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(Ari-Matti Husa) #4

Thanks, Paul, I will do that!

Do the processes handle “negative increments” intelligently? In any case, I suppose the harm should be greatly diminished.

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(Glyn Hudson) #5

I have also noticed occasionally the Wh Accumulator is reset to zero. This looks like it could be a bug. Interestingly, I have only noticed this when logging pulse accumulators from emonTx / emonTH not directly from emonPi, I’m not sure if this is significant. I will try and investigate with @TrystanLea.

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(Mike Nelson) #6

Just updated my one to 9.9.7 and my gas cubic feet pulse count has gone back to zero :frowning:
Can the pulse count be manual set / corrected in the monitor?

Help!

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