feros.lj wrote: Też się zastanawiam nad tym portem
Sorry for the English answer, but I do not really speak Polish.
The idiot here, who installs these meters for ENEA, has zero clue about it (I have never seen such an uneducated service man before.). He even told me that he seals the P1 port on the Otus 3. For what reason I don't know, but he thinks that is for programming the meter in the factory, disregarding the fact that he commissions it through the IR port. Anyhow...
If you want to try to have access to the meter, try to contact ENEA Operator and reference their Terms and Conditions.
https://www.operator.enea.pl/uploads-ev2/Operator/us%C5%82ugidystrybucyjne/Dla%20firmy/Pliki%20do%20pobrania/27.04.2023/OWU_ENEA_Operator_mikroinstalacja_Wytw%C3%B3rca_od%2001.03.2023.pdf
(This one is for companies but the normal customer one should have the same, but need to found on their website.)
So, there is Paragraph 5, Point 6/2, Point 10/2 and Point 11. That is what required to read the meter in some way locally.
The OTUS 3 Wireless M-Bus (the recently installed ones for sure) and a P1 port. The Iskra AM550 has a P1 port, no mention of Wireless M-Bus.
For reading the P1 port you will need something like a SlimmeLezer or similar device, one which will be able to decrypt the messages with a decipher key. (The encryption is most likely required due to the DLMS and the local law requirements.)
I hope it helps. Unfortunately I haven't managed to crack this nut yet to be able to give a full answer how it works with the DSO, but it seems to be this must be the way to do it. If you need I can give some references to the EU directive, the Polish Energy Law and the measurement system requirements, which guides the local reading.
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