Portal "Discharge Total" and "Charge Total" values are identical

6 comments started 2024-09-18 last 2024-09-19
BugsCloud Portal
H
#1 ham

In the cloud portal, the "discharge total" and "charge total" values increase each day, however they are always identical to each other. I would not expect this for two reasons:
1) Losses associated with the charging and discharging should mean that my discharge total is smaller than my charge total.
2) At different times of the day the battery SoC is higher or lower, so I would expect the charge total to change relative to the discharge total to reflect the changes in SoC.

It seems that there might be a software issue somewhere in which the same value read from the inverter is being populated into two different fields in the Cloud Portal. The Charge Today and Discharge Today fields - on the other hand - appear to be being populated correctly (at least their values are not identical to eachother).

D
#2 DD

ham It seems that there might be a software issue somewhere in which the same value read from the inverter is being populated into two different fields in the Cloud Portal.

I suspect it's deliberate, since it goes up by the average of charge and discharge. I can't see on the portal where there's a separate 'charge total' and 'discharge total', though I do see those on the API. On the portal, I see "battery throughput" which accumulates both charge and discharge figures. Then the charge and discharge totals on the API are exactly half of this throughput value. eg the api reports them both as 2117.9 for me at the end of yesterday, whereas portal reported "throughput" as 4235.7

W
#3 wrighar

Portal lists them a equal, but the inverter/BMS logs then separately:

Portal for me says 1181 for both totals.
inverter says:

H
#4 ham


The values are listed on the top bar of the portal, You need to use left and right arrows to cycle through the different values. I would expect the values not to be identical, and to reflect the values reported by the inverter as suggested by wrighar .

H
#5 ham

wrighar

Thanks for this. It seems that the average of the Charge Total and the Discharge Total read from the inverter is being reported in the Cloud Portal. But this way the portal seems to be "hiding" the losses associated with the charging and discharging cycle. Doesn't seem like the correct thing to report, and why bother having a separate Charge Total from Discharge Total value if their values are always going to be identical!

D
#6 DD

ham The values are listed on the top bar of the portal,

Ah - I'd been looking at the data tables in the inverter section. I rarely go to the dashboard, and have my bookmark set to go to the inverter page.

Just had a look at the raw data from my inverter. The registers are labelled

        "e_battery_discharge_total": Def(C.deci, None, IR(105)),
        "e_battery_charge_total": Def(C.deci, None, IR(106)),

and I have IR(105) = 21041 (presumably 2104.1kWh) and IR(106)=21157

For comparison portal is showing both as 2127.9kWh (which is the arithmetic mean). Whereas using the data from the energy graph, total battery in is 2087.64 and out is 1999.68