DLMS用户协会 Companion Specification for Energy Metering

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"Blue Book 12th.pdf" 是一份关于DLMS（Data Communication for Metering Systems, 电能计量系统数据通信）标准的详细文档，由DLMS用户协会发布，主要介绍了COSEM（Companion Specification for Energy Metering, 能源计量伴生规范）接口类和OBIS（Object Identification System, 对象识别系统）。该文档是第十二版，包含书签，便于查阅。这篇文档首先介绍了前言和概述，然后明确了文档的范围，列出了引用的相关文档。接着，文档详细定义了一系列专业术语和缩写，这些术语和定义与图像传输过程、S-FSK电力线载波设置类、PRIME NB OFDM电力线载波设置集成电路、ZigBee通信协议、支付计量接口类、仲裁器集成电路等相关。在“COSEM接口类”部分，文档详细阐述了基础原理，包括通用原则、引用方法、预留的特殊COSEM对象基名、类描述表示法、通用数据类型、数据格式（如日期时间格式和浮点数格式）、COSEM服务器模型以及COSEM逻辑设备。COSEM逻辑设备包括一般信息、逻辑设备名称（LDN）和“association”概念。文档中还涉及了OBIS对象识别系统，这是用于标识电能计量设备中不同数据元素的标准方法。OBIS系统使得不同制造商的设备可以在同一网络中进行互操作性通信，增强了数据交换的标准化。此外，文档还涵盖了与DLMS协议相关的各种通信细节，例如S-FSK和PRIME NB OFDM电力线通信技术，以及ZigBee无线通信协议，这些都是智能电网和远程计量系统中常用的技术。对于支付计量接口类的定义，则有助于理解如何处理与计费和支付相关的数据交换。这份文档是理解DLMS标准和COSEM接口实现的关键资源，对于从事智能能源计量、电力通信或智能电网开发的专业人士来说具有很高的参考价值。通过这份文档，读者可以深入理解电能计量系统中的数据交换和通信机制，以及如何与其他设备和系统进行交互。

COSEM Interface Classes and OBIS Object Identification System, Twelfth Edition

DLMS User Association 2014-09-10 DLMS UA 1000-1 Ed. 12.0 16/486

List of main technical changes in Edition 12.0 (compared to Edition 11.0)

Item Clause Description

1. 2 List of standards and RFCs referenced updated.

2. 3 All definitions brought here. New definitions related to security and payment metering added.

3. 3.4 New abbreviations added.

4. 3.5 Terms and definitions related to Payment metering interface classes added.

5. 3.6 Terms and definitions related to the Arbitrator IC added.

6. 4.1.9 Information security: text amended to include COSEM data protection

7. 4.2

Overview of the COSEM interface classes: Figure 6 and Figure 7 been updated.

Table 3 has been added, listing the interface classes by class_id, complete with cross

references.

8. 4.3.9 Specification of Status mapping IC mapping_table attribute amended (editorial).

9. 4.3.10 “Compact data” IC (class-id: 62) added.

10. 4.4.3 Association SN class (class_id = 12, version 4): New version added, specifying new access

rights.

11. 4.4.4 Association LN class (class_id = 15, version 3): New version added, specifying new access

rights.

Specification of the application_context_name and authentication_mechanism_name attributes

have been amended (editorial). These changes have also been implemented in the earlier

version of this IC.

12. 4.4.7 Security setup (class_id = 64, version = 1): New version added, supporting new security suites.

13. 4.4.9 COSEM data protection (class_id = 30): New interface class added

14. 4.4.8 “Push setup” IC specification: In Table 16 editorial corrections have been made. This table is

also referenced now from the new “Compact data” and the “Data protection” ICs.

15. 4.5.3 “Schedule (class_id = 10, version = 0): limitation on entries – index (9999) removed.

16. 4.5.11 In “Sensor manager” IC, processed_value_thresholds attribute, text amended to remove

ambiguity.

17. 4.5.12 New interface class “Arbitrator” (class_id = 68) added.

18. 4.5.13 Examples for modelling tariffication and billing in COSEM added.

19. 4.6 Payment metering related interface classes: New ICs added

20. 4.8 Two new M-B us related ICs have been added:

- DLMS/COSEM server M-Bus port setup (class_id = 76), see 4.8.6;

- M-Bus diagnostic (class_id = 77, version = 0), see 4.8.7.

21. 4.13 Interface classes for setting up and managing the DLMS/COSEM narrowband OFDM PLC profile

for G3-PLC networks: New version 1 of the ICs added to be in line with ITU-T G.9903:2014.

22. 5.4 Previous versions of interface classes: Previous versions of ICs moved here.

23. 6.2.1 Use of value group C: New allocations for payment metering ICs, “Data protection” IC and

“Compact data” IC added.

24. 6.2.16 Payment metering related objects: OBIS codes added

25. 6.2.20 IEC twisted pair (1) setup objects (class_id = 24): New OBIS codes for Euridis readout profiles

added.

26. 6.2.21 OBIS codes for “DLMS/COSEM server M-Bus port setup” and “M-Bus diagnostic” ICs added.

27. 6.2.31 Information security related objects

- Instead of the term Frame counter the term Invocation counter is used now.

- OBIS codes for “Data protection” IC added.

28. 6.2.34 Compact data objects: OBIS codes added

COSEM Interface Classes and OBIS Object Identification System, Twelfth Edition

DLMS User Association 2014-09-10 DLMS UA 1000-1 Ed. 12.0 18/486

Introduction

Object modelling and data identification

Driven by the business needs of the energy market participants – generally in a liberalized,

competitive environment – and by the desire to manage natural resources efficiently and to

involve the consumers, the utility meter became part of an integrated metering, control and

billing system. The meter is not any more a simple data recording device but it relies critically

on communication capabilities. Ease of system integration, interoperability and data security

are important requirements.

COSEM, the Companion Specification for Energy Metering, addresses these challenges by

looking at the utility meter as part of a complex measurement and control system. The meter

has to be able to convey measurement results from the metering points to the business

processes which use them. It also has to be able to provide information to the consumer and

manage consumption and eventually local generation.

COSEM achieves this by using object modelling techniques to model all functions of the

meter, without making any assumptions about which functions need to be supported, how

those functions are implemented and how the data are transported. The formal specification

of COSEM interface classes forms a major part of COSEM.

To process and manage the information it is necessary to uniquely identify all data items in a

manufacturer-independent way. The definition of OBIS, the Object Identification System is

another essential part of COSEM. It is based on DIN 43863-3:1997, Electricity meters – Part

3: Tariff metering device as additional equipment for electricity meters – EDIS – Energy Data

Identification System. The set of OBIS codes has been considerably extended over the years

to meet new needs.

COSEM models the utility meter as a server application – see 4.1.7 – used by client

applications that retrieve data from, provide control information to, and instigate known

actions within the meter via controlled access to the COSEM objects. The clients act as

agents for third parties i.e. the business processes of energy market participants.

The standardized COSEM interface classes form an extensible library. Manufacturers use

elements of this library to design their products that meet a wide variety of requirements.

The server offers means to retrieve the functions supported, i.e. the COSEM objects

instantiated. The objects can be organized to logical devices and application associations and

to provide specific access rights to various clients.

The concept of the standardized interface class library provides different users and

manufacturers with a maximum of diversity while ensuring interoperability.

COSEM Interface Classes and OBIS Object Identification System, Twelfth Edition

DLMS User Association 2014-09-10 DLMS UA 1000-1 Ed. 12.0 19/486

3. Transporting

C0 01 00 03 01 01 01 08 00 FF 02

2. Messaging

Protocol Services to access

attributes and methods

Communication Protocol

Messages :

Service_Id( Class_Id, Instance_Id, Attribute_Id/Method_Id )

Encoding: ( APDU )

1. Modelling

COSEM Interface Objects

Attribute(s) Data Type Min Max Def

1. logical_name

(static)

octet-string

2. value

(

dyn.)

instance specific

3. scaler-unit

(static)

scal_unit_type

Method(s) m/o

1. reset o

1 Scope

The DLMS/COSEM specification specifies a

data model and communication protocols for

data exchange with metering equipment. It

follows a three-

step approach as illustrated

in Figure 1.

Step 1, Modelling

: This covers the data

model

of metering equipment as well as

rules for data identification. The data model

provides a view of the functionality of the

meter, as it is available at its interface(s). It

uses generic building blocks to model this

functionality. The model does not cover

internal, implementation-specific issues.

Step 2, Messaging

: This covers the

communication services and protocols for

mapping the elements of the data model to

application protocol data units (APDU).

Step 3, Transporting

: This covers the

services and protocols for the transportation

of the messages through the communication

channel.

Figure 1 – The three steps approach of DLMS/COSEM: Modelling – Messaging – Transporting

Step 1 is specified in this document. It specifies the COSEM interface classes (ICs), the OBIS

object identification system, and the use of interface objects for modelling the various

functions of the metering equipment.

Step 2 and 3 are specified in the Green Book, DLMS UA 1000-2. It specifies communication

profiles for various communication media and the protocol layers of these communication

profiles. The top layer in any profile is the DLMS/COSEM application layer. It provides

services to establish a logical connection between the client and the server(s). It also

provides the xDLMS messaging services to access attributes and methods of the COSEM

interface objects. The lower, communication profile specific protocol layers transport the

information.

Rules for conformance testing are specified in the “Yellow Book”, DLMS UA 1001-1

"DLMS/COSEM Conformance Test Process".

Terms are explained in the “White book” DLMS UA 1002, "COSEM Glossary of Terms".

COSEM Interface Classes and OBIS Object Identification System, Twelfth Edition

DLMS User Association 2014-09-10 DLMS UA 1000-1 Ed. 12.0 20/486

2 Referenced documents (see also the Bibliography)

Reference Title

DLMS UA 1000-2 Ed. 8.0:2014 DLMS/COSEM Architecture and Protocols, the “Green Book”

DLMS UA 1001-1, Ed. 4.0:2007 DLMS/COSEM Conformance test and certification process, the “Yellow Book”

DLMS UA 1002, Ed. 1.0:2003 COSEM Glossary of terms, the “White Book”

IEC/TR 61000-2-8:2002

Electromagnetic compatibility (EMC) – Part 2-8: Environment - Voltage dips and

short interruptions on public electric power supply systems with statistical

measurement results

IEC 61334-4-32:1996

Distribution automation using distribution line carrier systems – Part 4: Data

communication protocols – Section 32: Data link layer – Logical link control (LLC)

IEC 61334-4-41:1996

Distribution automation using distribution line carrier systems – Part 4: Data

communication protocols – Section 41: Application protocols – Distribution line

message specification

IEC 61334-4-511:2000

Distribution automation using distribution line carrier systems – Part 4-511: Data

communication protocols – Systems management – CIASE protocol

IEC 61334-4-512:2001

Distribution automation using distribution line carrier systems – Part 4-512: Data

communication protocols – System management using profile 61334-5-1 –

Management Information Base (MIB)

IEC 61334-5-1:2001

Distribution automation using distribution line carrier systems – Part 5-1: Lower

layer profiles – The spread frequency shift keying (S-FSK) profile

IEC/TR 62051:1999 Electricity metering – Glossary of terms

IEC/TR 62051-1:2004

Electricity metering – Data exchange for meter reading, tariff and load control –

Glossary of terms – Part 1: Terms related to data exchange with metering

equipment using DLMS/COSEM

IEC 62053-23:2003

Electricity metering equipment (a.c.) – Particular requirements – Part 23: Static

meters for reactive energy (classes 2 and 3)

IEC/TR 62055-21:2005 Technical report Electricity metering - Payment systems- Part 21: Framework for

standardization. 2005-8

IEC 62055-31:2005 Electricity metering – Payment systems – Part 31: Particular requirements – Static

payment meters for active energy (classes 1 and 2)

IEC 62056-21:2002

Electricity metering – Data exchange for meter reading, tariff and load control –

Part 21: Direct local data exchange

IEC 62056-31:1999

Electricity metering – Data exchange for meter reading, tariff and load control –

Part 31: Using local area networks on twisted pair with carrier signalling

IEC 62056-3-1:2013

Electricity metering data exchange – The DLMS/COSEM suite – Part 3-1: Use of

local area networks on twisted pair with carrier signalling

IEC 62056-46:2007

Electricity metering – Data exchange for meter reading, tariff and load control –

Part 46: Data link layer using HDLC protocol

IEC 62056-4-7:–

13/1570/CDV

Electricity metering – Data exchange for meter reading, tariff and load control –

Part 47: COSEM transport layers for IPv4 networks

IEC 62056-5-3:2013

Electricity metering data exchange – The DLMS/COSEM suite – Part 5-3:

DLMS/COSEM application layer

IEC 62056-6-1:2013

Electricity metering data exchange – The DLMS/COSEM suite – Part 6-1: Object

identification system (OBIS)

IEC 62056-6-2:2013

Electricity metering data exchange – The DLMS/COSEM suite Part 6-2: COSEM

interface classes

IEC 62056-9-7:2013

Electricity metering data exchange - the DLMS/COSEM suite - Part 9-7:

Communication profile for TCP-UDP/IP networks

IEEE 802.15.4: 2006

also available as

ISO/IEC/IEEE 8802-15-4 Ed 1.0

IEEE 802.15.4-2006 Standard for Information technology – Telecommunications and

information exchange between systems – Local and metropolitan area networks –

Specific requirements – Part 15.4: Wireless Medium Access Control (MAC) and

Physical Layer (PHY) Specifications for Low-

Rate Wireless Personal Area Networks

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