Sofar solar (Alias zucchetti) 1100tl-3300tl G1 rs485 modbus protocol implementation

[guadax]

Hi, just a question: protocol php file for the above inverter is almost completed (when completed i can post it). The only issues i have is on the variable

$KWHT is the total counter (a Wh precision is needed)

well... modbus register give me only total produce KWH precision (not watt):

without watt/hours precision the main production page is empty (maybe i'm wrong).

Any suggestions?

[jeanmarc77]

Hi,
Yes it is mandatory. Maybe you can also use a daily counter more precise ?
If think mi600-webif.php use some sort of calculation to get a wh precision

[guadax]

all the data available below.... so i've to replace the total production(Produzione cumulativa (kw)) with daily production(Produzione giorno (kw))?
sorry for the missing description but i cannof find documentation about inverter data register... the only one i found is different...

[jeanmarc77]

i don't think so, the daily counter don't seem to have a Wh precision

[guadax]

Seems to work with daily production

[guadax]

Jean... a question... as you can see below daily csv data files seems correct (some issues on efficency, but i'm working on it), but the avereage an the main page seems too...."average": values are multiple of 10:

below ac power and avg production:

and the csv file:

it is possible that the average is affected by the:
//$KWHT is the total counter (a Wh precision is needed)
that i cannot have(max precision 10w)?

[jeanmarc77]

Yes i think so, avg power need to have Wh precison or you'll get bumps in the chart

[guadax]

no way: adding watt/hour precision manually didn't solve the problem.... so is elsewhere.... could you tell me the php file with implements the avg plotting function?

[jeanmarc77]

you missing Wh, that would be 3.27x kWh
programday does that job

[guadax]

added random last number (watt precision) not equal to zero