How to change password of HPL meter

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By Goutam, 25 August, 2017
Forums
General discussion

HI,

Following code I have use to change the password in HPL meter

GXDLMSAssociationLogicalName passwordconfig = (GXDLMSAssociationLogicalName)GXDLMSSecureClient.CreateObject(ObjectType.AssociationLogicalName);

passwordconfig.Secret = ASCIIEncoding.ASCII.GetBytes("XXXXXXXXXXXXXXXX");
passwordconfig.HlsSecret = ASCIIEncoding.ASCII.GetBytes("YYYYYYYYYYYYYYYY");
grxComm.Write(passwordconfig, 2);

Result: "Access Error : Device reports a unavailable object."

Could you please suggest me where I am wrong.

If possible could you please provide me sample code.

Regards,

Kurumi

8 years 9 months ago

Hi,

You can try with this:
GXDLMSAssociationLogicalName ln = new GXDLMSAssociationLogicalName();
ln.Secret = ASCIIEncoding.ASCII.GetBytes("XXXXXXXXXXXXXXXX");
grxComm.Write(ln, 7);

BR,
Mikko

Hi,

I have checked that the following codes execute successfully.

GXDLMSAssociationLogicalName ln = new GXDLMSAssociationLogicalName();
ln.Secret = ASCIIEncoding.ASCII.GetBytes("XXXXXXXXXXXXXXXX");
grxComm.Write(ln, 7);

GXDLMSAssociationLogicalName ln = new GXDLMSAssociationLogicalName();
ln.HlsSecret= ASCIIEncoding.ASCII.GetBytes("YYYYYYYYYYYYYYYY");
grxComm.Write(ln, 7);

But the problem is that the device throw exception "Access Error : Other Reason." when try to authenticate the connection with the High Level Passowrd("YYYYYYYYYYYYYYYY"),Client Address:48 and Authentication:High.

Regards,

Hi,

Following exception has been thrown when i tried to read
GXDLMSAssociationLogicalName ln = new GXDLMSAssociationLogicalName();
var data = grxComm.Read(ln, 7);

Exception: "Access Error : Device reports Read-Write denied."

Regards,

Goutam

8 years 9 months ago

Hi,

Client Address: 48
Authentication Level: High

Note: For Low Level its working fine. But for high level password its not working.

Regards,

Kurumi

8 years 9 months ago

Hi Goutam,

I did't notes that you was trying to change High authentication level password. You are using method command to set it, not write. Write is used when Low level pw is changed.

We'll add new method (UpdateSecret) to GXDLMSAssociationLogicalName that you can use to change pw.
It'll take care from authentication level. We'll release new version from C# tomorrow.

BR,
Mikko

Goutam

8 years 9 months ago

Hi,

I have update to new version but I have not found any method like 'UpdateSecret' . I have checked that the 'HlsSecret' property has been removed.

Now system failed to ParseAAREResponse after update.

Exception : "Connection is permanently rejected. No reason is given"

Please suggest.

Regards,

Kurumi

8 years 8 months ago

Hi,

What version you are using and you are using C#?
You set password to Secret property.

You can use it like this:
GXDLMSAssociationLogicalName c = new GXDLMSAssociationLogicalName("OBIS code");
c.AuthenticationMechanismName.MechanismId = Authentication.High;
c.UpdateSecret(client);

BR,
Mikko

Goutam

8 years 8 months ago

Hi,

Thank you,

Sample code is working.

First time i have checked on version 'Gurux.DLMS.8.5.1708.2201'.

Again I update to 'Gurux.DLMS.8.5.1709.1201'.

Now its working with latest version.

Regards,