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  2. Can't Connect To Aurora L&T Smartmeter With Authentication Key and Password

Can't connect to Aurora L&T smartmeter with authentication key and password

By Bimal Satheesh , 31 March, 2024
Forums
DLMSDirector

Hello, I have successfully took readings l&T dlms meter which only needs the password. Now I am trying to connect to Aurora L&T smart meter using GXDLMSDirector application with authentication key and password which got from the manufacturer, but it throws error "frame is not fully received".

Settings :
Manufacturer: India standard
Interface : HDLC
Authentication : MR
password: ****
Client Address : 0x20

Log:
GXDLMSDirector 8.0.2103.2201
Log created 21:40:44
21:40:46 Initializing serial connection.
21:40:47 Send SNRM request.
7E A0 07 03 41 93 5A 64 7E
21:40:47
7E A0 1E 41 03 73 8E 7F 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
21:40:47 Parsing UA reply succeeded.
21:40:47 Send AARQ request.
7E A0 70 03 41 10 AD DF E6 E6 00 60 62 A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 74 69 62 73 31 32 33 34 8A 02 07 80 8B 07 60 85 74 05 08 02 01 AC 06 80 04 6C 6E 74 31 BE 34 04 32 21 30 10 00 00 00 00 01 01 10 01 02 03 04 05 06 07 08 09 00 01 02 03 04 05 06 00 00 06 5F 1F 04 00 00 1E 5D FF FF D2 0A 9B AF BE B9 A1 49 ED BC E3 1E 99 74 7E
21:40:52 Data send failed. Try to resend 1/2
21:40:52
7E A0 07 41 03 31 5A 24 7E
21:40:52 Disconnect request
21:40:52
7E A0 1E 41 03 73 8E 7F 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
System.Exception: Frame is not fully received.
at GXDLMSDirector.GXDLMSCommunicator.InitializeConnection(Boolean force)
at GXDLMSDirector.GXDLMSDevice.InitializeConnection()
at GXDLMSDirector.MainForm.Connect(Object sender, GXAsyncWork work, Object[] parameters)

I have attached attached security settings also. Please help..

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Profile picture for user Kurumi

Kurumi

2 years 2 months ago

Hi, In Indian standard the…

Hi,

In Indian standard the meter Reading uses usually only Low-Level authentication and ciphering is not used.

One of your settings is different than the meter expects and your meter is not replying because of that.

Try to change the Authentication level To Low and set the correct password. Don't set the ciphered settings and try to connect. I believe it will help you.

BR,
Mikko

Bimal Satheesh

2 years 2 months ago

Hello Mikko, Firstly thank…

Hello Mikko,

Firstly thank you for your response. What I have is two L&T meters which I got from the client. One is with password only and other with authentication key and password ( as instructed by the client).
I have successfully took readings from the first meter which only needed password. The setting is HDLC with MR, I am attaching the image also, please check.
The second meter is the one with authentication key also along with password (both I got from client). I am pretty much sure that the client has been taking data from this meter using some other third party module using authentication key and password.

I tried to read from the second meter a) using password only and b) with password and authentication key. But no success so far. Any help would be really appreciated.

NB: I have attached the settings using which I have successfully took reading from the first meter which needed password only.

Thanks
Bimal

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