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The device address contains all data necessary to connect to a logical device of the smart meter. Both the server-logical and client-logical address are each a 16-Bit unsigned number. The server-logical address is needed to identify a logical device inside a smart meter. In most cases, there are 2 logical devices inside a smart meter with the first being a management device to get common information and data about other logical devices in this smart meter while the second logical device is the smart meter itself holding the tariff and measurement data. The management device has the address 1, the address of the second device is manufactor specific but can be read from the management device. If the phyiscal device acts as a hub for other smart meter, the number of logical devices increases accordingly. The client-logical address is often used in conjunction with a password to identify the access level of the client.
Premier 250 Indian DLMS. Premier 250 is a registered trade name of Secure Meters Ltd. Voltage and current ratings, serial number etc. (SEC DLMS/COSEM OBIS CODE SPECIFICATION) FOR ELECTRONIC REVENUE WC METER (40-SDMS-02B REV.08) [March 2017] This specification is property of SEC and currently optimized. RS-485 Serial Communication Interface. Data Link Layer.
![Dlms meter serial number list Dlms meter serial number list](http://oi67.tinypic.com/11i382c.jpg)
For the lowest access level (Public client) the client-logical address 16 with no password is reserved by the IEC 62056-46 and IEC 62056-47 norm. A channel address references a single attribute of a COSEM Interface Object. To uniquely identify an attribute, the class-id, reference-id and attribute-id are needed, each separated by the slash character. The class-id and attribute-id are each a 16 bit unsigned number, while the reference-id needs to be the 6 byte OBIS code as it is defined by the DLMS UA. The reference-id can be written as hexadecimal number (e.g. FF) or as a series of six decimal numbers separated by periods (1.1.1.8.0.255).
Options Protocol Values Default Description PW all string Authorization password to access the smart meter device SendDisconnect all true/false true Send a disconnect message at DLMS layer on disconnecting from device. Set this flag to false if the remote device is expecting the disconnect message at a lower layer (like HDLC) UseHandshake HDLC true/false true Use initial handshake to negotiate baud rate Baudrate HDLC integer Maximum supported baud rate (0 = no maximum). If UseHandshake = false, this value will be used to communicate with the device and has to be set ForceSingle all true/false false Forces every attribute to be requested individually. This option has to be enabled to support Kamstrup 382 smart meter devices.