SmartMUC ZDUE sagemcom fka. Dr.Neuhaus

[LocalNic]

I try to connect to a SmartMuc that is installed by my EnergyProvider and the MUC is connected to all primary Energy sources.
This Device is collecting data in so called Mirrors or Data Collectors.
here a Link to the Device: https://www.sagemcom.com/V02/fileadmin/user_upload/Energy/Dr.Neuhaus/Support/ZDUE-MUC/Doc_communs/ZDUE-MUC_Anwenderhandbuch_V2_5.pdf

I also have access to the Device via the Propriatary software and also tried to connect to the device by a Java Source.
I tried the jSQL by OpenMuc and got a connection but wasn't able to understand the requested SML Fragments.
https://www.openmuc.org/sml/

The reason why I reach out to you is that this Device is available by IP via a User (Ethernet) interface and habe Authentication ( User and Password ) configured. So I suspect that it might be easy to adapt your Module for IObroker to support credentials as well.

Hope this is a nobrainer for you and not huge effort.

Thanks in advance

[Apollon77]

I need way more information on how to get the SML ... if it is then official SML thats no issue, but I need exact info on getting it.

The document states on page 193 that SML can be requested via TCP ... but no info on any user/password

Can you maybe access that directly with telnet?

[LocalNic]

I have used jSML in the past to get directly OBIS numbers from the current Consumption direct from the muc.
I had tried to create my own openhab so to say .. I can provide you the source lines that I used to utilize the jSML Library and this works.

		OctetString user = new OctetString(this.user.getBytes());
		OctetString password = new OctetString(this.password.getBytes());

		OctetString clientID = new OctetString(hexToByteArray(this.clientId));
		OctetString serverID = new OctetString(hexToByteArray(this.serverId));
		
		SML_PublicOpenReq openRequest = new SML_PublicOpenReq(null, clientID, reqFileId, null, user, password, null);
		SML_MessageBody smlMessageBody = new SML_MessageBody(SML_MessageBody.OpenRequest, openRequest);
		SML_Message openRequestMessage = new SML_Message(transactionId, groupNum, abortOnError, smlMessageBody);

in the library https://www.openmuc.org/sml/download/ of jsml is also the source for the SML_PublicOpenReq class.
So I suppose it is just an additional field in the SML OpenReqest
I'm not so deep into programming, and the rest of the code looks like a mess but It was hard for me to find out the the Strings need to be transfered into the OctetString. ;)

Oh and one thing, this works here very well !
telnet doesn't answer because the MUC just accepts proper binary SML protocol ;( but it is ":7259" and ":7260" for SSL encrypted traffic

I just search the open-sml lib that you import in smartmeter-obis and there the user/password is allready existing in the openRequest ;)

[Apollon77]

Ooohhh, so that device wants to have an SML request string. Interesting, this is new. All other smartmeters with SML I know so far send SML every 2-5s out and noone needs to request something.

In fact the library we use have the message also implemented (https://github.com/Apollon77/OpenSML/blob/master/lib/messages/SmlPublicOpenRequest.js) but I think not really used so far :-)

So it is compiling such a request as SML and then it is sending to the TCP port and getting an SML as response?

Ok, thats a bit more effort to implement and especially test without having such a device :-(

I put it on my list but can take some time

[LocalNic]

That is more as I have expected ;) I can definatly support you by testing it with my Device.
As Far as I know were those MUC the standard in a Pilot of a German Energy Provider so there might be a lot more that have this device already build in their Houses.

The MUC collects from external RF-M-BUS meters the data and collects it in an internal memory.
To use these Collectors you just do a request to provide the actual Value of the meter or accessing the internal Collection.

As I am not so familiar with the OBIS Numbers I did a reingeneering of a TCPSession where I gather the actual Values of the meters.
I just realize that the MUC here only provides Values for Power, I think that for Water and Gas the Batteries run dry.

I can provide you with the relevant IDs, as I said I have allready read out the actual values.
But to be completely open I just have no clue how this SML and OBIS stuff works. :)

Thanks for your support ...

[Apollon77]

In fact it could help to see a SML message created by that jSML library so that I can compare it to what my creates - and alsoa copy of an response SML, then I can do a dry run too and most likely it is easier then. YOu can send that to me as email to iobroker@fischer-ka.de

[Freighter]

Sorry, I had lost this topic out of scope and just get faced by that topic again, may I be able to send you the SML trace anyway?
As we discussed, it might be an easy thing to implement.

[Apollon77]

Have fun ... Attach here if possible ...

[LocalNic]

Here the export from the SML Req/Res hope it shows the Info where to put the User and Password ;)

sml with auth.txt

[LocalNic]

Hi Apollon77,
I found some old code where I try to get some Data from the MUC .. using the jSML from openmuc Project

I allready know a lot about my numbers so here is what I did in the past :
in Pseudo code

1. generate a connection
   sml_tConnection = sml_tSAP.connectTo(InetAddress.getByAddress(openmucBytes), port, 50);
2. create a sml message with Open and close request
3. in between I tried two things
   a . generating a getListReq where the Client ID is my MAC and Server ID is the server string from my "EMH"
   SmlGetListReq getListRequest = new SmlGetListReq(clientID, serverID, user, password, null);
   smlMessageBody = new SmlMessageBody(EMessageBody.GET_LIST_REQUEST.id(), getListRequest);
   and
   b. generating a getProfileListRequest knowing the collector for measurement entries
   OctetString smlTreePath = new OctetString(hexToByteArray("8181c78617FF"));
   SmlTreePath treePath = new SmlTreePath(new OctetString[] { smlTreePath });
   SmlGetProfileListReq getProfileListRequest = new SmlGetProfileListReq( serverID, user, password, null, null, null, treePath, null, null);
   smlMessageBody = new SmlMessageBody(EMessageBody.GET_PROFILE_LIST_REQUEST.id(), getProfileListRequest);

the List REsponse is the actual value and the Profile REsponse is a list of the last 30 min with secondly measurements

I would be happy if you can use this to integrate into your code that a lot of people can ask to get direct access tu the MUC they have allready in their homes :)

[Freighter]

just to my curiousity, is there any update ?
Like providing username and passwords with that Module ?

[Apollon77]

Did not had any time for it so far. Thumbs up in first post help to see how many users are interested ...