Changes

[[File:DLMS_client_configuration_example_physical_device_window_v1.png|border|class=tlt-border|700x700px]]<br>

[[File:DLMS_client_configuration_example_physical_device_window_v1.png|border|class=tlt-border|700x700px]]<br>

* Select the '''connection instance''' created earlier;

* Select the '''connection instance''' created earlier;

* HDLC Addressing

* '''HDLC Addressing'''

** Specify the '''Server address'''. This address is also commonly known as '''''Physical device address''''' or '''''Lower address'''''. For a single physical device, there can only be one physical server address! This parameter is mainly used in serial connections where there are no other means of addressing a device.

** Specify the '''Server address'''. This address is also commonly known as '''''Physical device address''''' or '''''Lower address'''''. For a single physical device, there can only be one physical server address! This parameter is mainly used in serial connections where there are no other means of addressing a device.

** Specify the '''Logical server address'''. It is also commonly known as the '''''Upper address'''''. A single physical device can have more than one logical address. Each logical server can have their own client addresses, access security levels, etc.

** Specify the '''Logical server address'''. It is also commonly known as the '''''Upper address'''''. A single physical device can have more than one logical address. Each logical server can have their own client addresses, access security levels, etc.

* Client addressing

* '''Client addressing'''

** Client address, as defined by the standard, relates to the permissions of the user. Each client address represents a different '''Access security''' level:

** Client address, as defined by the standard, relates to the permissions of the user. Each client address represents a different '''Access security''' level:

*** Client address '''16''' - '''None''';

*** Client address '''16''' - '''None''';

** The client address should be specified in the '''user manual''' of the DLMS Server. However, if you are not able to find this information, the most commonly used address is 16 with no authentication.

** The client address should be specified in the '''user manual''' of the DLMS Server. However, if you are not able to find this information, the most commonly used address is 16 with no authentication.

** Keep in mind, that some manufacturers may not follow the standard and use Client addresses that do not follow the scheme mentioned above.

** Keep in mind, that some manufacturers may not follow the standard and use Client addresses that do not follow the scheme mentioned above.

* Interface type

* '''Interface type'''

** We currently support two DLMS interface types:

** We currently support two DLMS interface types:

*** '''Wrapper''' - can only be used with '''TCP/IP''' connections, but is simpler to implement;

*** '''Wrapper''' - can only be used with '''TCP/IP''' connections, but is simpler to implement;

*** '''HDLC''' - can be used with both '''serial''' and '''TCP/IP connections'''. We currently support direct serial connections, as well as IEC 62056-21 protocol '''mode E''' / HDLC with mode E interfaces, which contain an optical probe on one end, and RS interface on the other.

*** '''HDLC''' - can be used with both '''serial''' and '''TCP/IP connections'''. We currently support direct serial connections, as well as IEC 62056-21 protocol '''mode E''' / HDLC with mode E interfaces, which contain an optical probe on one end, and RS interface on the other.

* Transport security

* '''Transport security'''

** Transport security, unlike access security, specifies on how the data should be encrypted when being transferred via the TCP/IP or Serial communication lines. This parameter can also be found in the user manual of the DLMS Server. It has 4 possible levels of security.

** Transport security, unlike access security, specifies on how the data should be encrypted when being transferred via the TCP/IP or Serial communication lines. This parameter can also be found in the user manual of the DLMS Server. It has 4 possible levels of security.