Use extended fields in PVO

[petermdevries]

As I''ve donated to PVO, I can upload 6 additional parameters v7..v12. For my other inverter (a GoodWe) I'm using these extended parameters to send iPv1, uPv1, iPv2, uPv2 etc.

`

ExtendedData

payload['v7'] = vpv1
payload['v8'] = ipv1
payload['v10'] = vpv2
payload['v11'] = ipv2
`

Maybe it should be configurable via en ENV:

PVOUTPUT_EXTENDED_V7=iPv1
PVOUTPUT_EXTENDED_V8=uPv1
etc.

[petermdevries]

Thanks... working fine.

[Gentleman1983]

We are glad, that it works properly.