Big changes from the electricity company (Switzerland)

[Cartoon-Dude]

Since monday the data stopped being received.
After some research on the website of the provider, we must specifically ask for having the port activated, and the data are encrypted. We must give a form and go there in person for having the decryption key.
The format might be different too, but at least there's improvement with documentation.
Would the actual firmware still work with the new structure?
Formulaire-acces-local-donnees-comptage-electrique.pdf

Many thanks

[ArnieO]

HAN port locked by default is standard in most countries.

Encryption is used in Denmark (with some "technical holes" for "P1 companion" meters) and (partly?) Austria.
As far as I know, Switzerland should also be encrypted, but we have heard of several cases where the meters delivered data without encryption key. Maybe this is the implementation of a requirement that has been there for a while.

But this is by far the most inconvenient solution I've seen for activating the port and obtaining the encryption key:
Physically visit the locals of the grid company with identification papers. 😮

The usual solution is a secure login on "My page" on the grid company web site where you fill in a form.

Regarding the format, I'm not convinced that the person that wrote this knew the subject particularly well:
"Les données à disposition sur l'interface client sont au format DLMS. Une multitude de données sont disponibles (par exemple : consommation heure creuse et heures pleines, production heure creuse et heures pleines, courbes de charges, etc.)."

The meters do not deliver any "curves" to the port, just measurements at the timestamp of each transmitted data frame. DLMS is the international standard that virtually all meters use.

We are confident that our firmware will work well also after you have the port activated and obtained the encryption key.

[Cartoon-Dude]

Excellent
Would also buy the newest version of the reader, in case the certifications are requested
Weird it was until now activated by default and unencrypted. Some providers are activating on request, but the data is still not encrypted.

[ArnieO]

Some people might say the the Swiss often have their own way of doing things. 😉

[GEAG]

Formulaire-acces-local-donnees-comptage-electrique.pdf

This document from SIL seems to also contain some illegal information (115 TTC). Access to the CII has to be provided free of charge to all customers, according to Swiss laws. Swiss customers may contact ElCom, if the DSO does fulfill its duties.

There is another more technical document from SIL.

Within this document (page 2), SIL claims a 9600 Baud data-rate for DLMS, which is simply wrong for the RJ11 connector. The correct data-rate is - depending on the CM model and the type of CII - either 115200 or 2400 Baud.

We recently have been contacted by a person that has connected a gPlugD-E IoT-Adapter with Tasmota from gPlug.ch to its ISKRA AM550 SM. Despite the documentation from SIL ("avec un logiciel DLMS approprié"), he has received the unencrypted DSMR format over the CII. For the ISKRA SM, it's a matter of configuration by the DSO, whether the data ist deliverd in plain DSMR ASCII format or in HDLC/DLMS with or wihout encryption.

Recently, the Swiss assocication of DSO (VSE/ASE), has published a new dokument:
Standards Kundenschnittstelle für intelligente Messsysteme (RL-DSP – CH 2024) with the intention to harmonize the current chaos with all these differnt types of CII, already in place by the 600+ Swiss DSO.

[ArnieO]

Thank you for this information! 👍

[Cartoon-Dude]

Good there's some harmonisation.
I wish there is also a rule about the speed the port is activated, been a month and they responded we should ask again if we have no response after 2 months...