Dlms Meter Reading Software

DLMS/COSEM Standard

What is DLMS/COSEM?

DLMS or Device Language Message Specification, is the suite of standards developed and maintained by the DLMS User Association and has been adopted by the IEC TC13 WG14 into the IEC 62056 series of standards. COSEM or Companion Specification for Energy Metering, includes a set of specifications that defines the Transport and Application Layers of the DLMS protocol.

AMR (Automatic Meter Reading) Solutions. Master Protocols: MODBUS TCP, IEC62056-21, DLMS/COSEM. Slave Protocols: MODBUS TCP, MODBUS RTU. Reading Meter Data with DATA READOUT and PROGRAMMING MODE. Some Supported Electricity Meter Models. Elster: A1500 Series. Itron: SL7000 Series. Landis: E550 Series. I have tried to read data from meter by DLMS protocol but only '/?! R ' works another not, I try to read data such as (1-1.32.7.0 voltage) but cannot use it as ASCII, then I log data from RS485 by paralleled RS485 to USB. So The code that I have shown below works, but I can't decode anyway. DLMS looks to reduce the costs of the roll out of Electric Vehicles for consumers and manufacturers. June 23rd, 2021. DLMS, the global standard for interoperability, security and flexibility in smart metering, has just launched a call for members for their latest Working Group, which will examine ways in which existing in home technology can be. IEC Technical Committee TC13 has a working group, WG14 that is responsible for data exchange for meter reading, tariff and load control. The DLMS/COSEM specification has been adopted by the IEC as part of the IEC 62056 DLMS/COSEM suite since 2002. New editions of the DLMS UA Books specifying major new elements lead to new editions of the IEC.

The DLMS User Association defines the protocols into a set of four specification documents namely Green Book, Yellow Book, Blue Book and White Book. The Blue book describes the COSEM meter object model and the OBIS object identification system, the Green book describes the Architecture and Protocols, the Yellow book treats all the questions concerning conformance testing, the White book contains the glossary of terms. If a product passes the Conformance Test specified in the Yellow book, then a Certification of DLMS/COSEM compliance is issued by the DLMS UA.

The relevant IEC standards are as follows:

IEC 62056-1-0:2014 Smart metering standardisation framework
IEC 62056-3-1:2013 Use of local area networks on twisted pair with carrier signalling
IEC 62056-5-3:2016 DLMS/COSEM application layer
IEC 62056-6-1:2015 Object Identification System (OBIS)
IEC 62056-6-2:2016 COSEM interface classes
IEC 62056-7-6:2013 The 3-layer, connection-oriented HDLC based communication profile
IEC 62056-8-3:2013 Communication profile for PLC S-FSK neighbourhood networks
IEC 62056-9-7:2013 Communication profile for TCP-UDP/IP networks

source: https://en.wikipedia.org/wiki/IEC_62056

Why DLMS/COSEM?

Automatic Meter Reading, or more general - Demand Side Management - needs universal definitions, needs communication standards. DLMS/COSEM is the common language so that the partners can understand each other. source: http://www.dlms.com

Being an object-oriented open international standard, DLMS/COSEM is the de-factor AMR standard in most part of the world. It is well organized and facilitates the interoperability among devices and systems from different vendors. The DLMS/COSEM standard offers compliance testing tools to verify the compliance of meters.