Hi
My energy provider is telling me that the L+G E450 meter is sending data UNENCRYPTED.

As you can see below I am mostly getting the error 'Invalid Command'.
Sometimes I get the error 'Invalid Count'.

Any idea what is going wrong here?

Greetings,

I was wondering if the C++ version of GuruX supports ECDSA authentication, and if not whether this support will be coming to this version.

Thank you and best regards

Just starting with a dive in DLMS world, and its just the beginning.. Trying connecting to a Common meter (Genus Power) using the common optical probe (FT232) with the android based app (using .net & Xamarin) and with the provided GxDLMSDirector App and getting different results.. Android App is showing length one less in bytes and has a different output [in octetstring] and not decimal. Not sure what I am missing & what params need to be changed for identical information [Director app is getting it right]

The Android App has following Rx and Tx

Hello
I am trying to understand how to handle wrong password when i connect to meter with High authentication. There is my method:
public void ConnectToMeter()
{
GXReplyData reply = new GXReplyData();
SNRMRequest();
foreach (byte[] it in SecureClient.AARQRequest())
{
reply.Clear();
ReadDataBlock(it, reply);
}
SecureClient.ParseAAREResponse(reply.Data);
reply.Clear();

Hey there!

Have anybody ever met the case with SL7000 that normally accepts the time set command (set request) that is to compensate the difference with the master device for about 3 or 4 seconds but in fact the meter adjusts its clock for just 1 second. Are there any corresponding restrictions available to set up in the meter?

Hi,

I'm trying to get a Landis & Gyr E850 to work using high level security with the Gurux.DLMS library (.Net). I am able to get it to work fine in GXDLMSDirector but when I attempt to do the same with my implementation, I am getting "Invalid password. Server to Client challenge do not match." Obviously, I am missing an important step or haven't configured the library correctly, but I just can't spot it.

Here is the comms stream from my application:

Morning,

I´m trying to connect the Director client simulator with the server proposed in GuruxDLMSServerExample. I have the Director in Windows and the server running in a virtual machine.
Connection is established via TCP/IP with an AARQ, but when the client asks to the server for the association view, the server rejects the get command.
Message in the Director says: "GetObjects failed. Access Error: Other Reason".

Hello!
File bytebuffer.c, function bb_move(). Error in calculation of resulting size.
bb->size = (destPos + count);
For case destPos > srcPos mus be:
bb->size = (destPos - srcPos + count);
else
bb->size = (srcPos - destPos + count);

With best regards.

Hi
I have a problem regarding that Gurux DLMS implementation in python. Python client example can't build the meters xml file to store the association view. After it reads executes getAssociationView() and goes to execute readScalerAndUnits() it reads maybe 8 units and the returns:

Service not allowed. Operation not possible

I can read the whole meter with GXDLMSDirector. With exactly the same settings.
I have tried older versions of: gurux-dlms, gurux-common, gurux-serial with no effect.
My meter is: Iskraemeco AM550

hi,

decoded frame from a austria eww (ewerk wels) im350 smartmeter

python code:
xml = decrypt.messageToXml(GXByteBuffer.hexToBytes(data))
print(xml)
tree = ET.fromstring(xml)

when i tried to parse the xml i get following error:

xml.etree.ElementTree.ParseError: not well-formed (invalid token): line 16, column 8

put it xml string into https://www.xmlvalidation.com: