new edition of iec 62056 - dlms/cosem

New edition of IEC 62056

DLMS/COSEM Győző Kmethy

DLMS User Association

Metering Billing/CRM Asia 2013

22-23 May 2013, Bangkok, Thailand

Presentation program

1. The seven growth: DLMS/COSEM

2. Growth in standardization

3. The seven growth: COSEM model of metering functions

4. The seven growth: DLMS messaging

5. The seven growth: transport via communication media

6. Growth of information security

7. Seven (+1) examples of projects and companion specifications

22-23 May 2013 Metering Asia 2013 Bangkok, Thailand - DLMS 2

The seven growth: DLMS/COSEM 1997- 2013


Functionality:

COSEM model

Transport: communication

profiles

Security: messages,

data, functions

DLMS/

COSEM

MembershipManufacturers &

Certified meter types

Projects &

Implementations

Messaging:

DLMS services

1.1: Growth of the DLMS UA membership


• Formed in 1997

• 270+ members (May 2013)

• 5 continents - 50 + countries

• from all branches of the industry

• 325 Product Certificates to 79

manufacturers (May 2013)

15

4 3

156 0

50

100

150

200

250

300

1997 2000 2003 2006 2009 2012 92

1.2: Growth of product choice


0

50

100

150

200

250

300

350

2002 2004 2006 2008 2010 2012

• IEC 62056 standard first published in 2002

• Conformance testing started in 2002

• To date (May 2013), 79 manufacturers, 325 certified meter types

Certified products

Manufacturers


1.3: DLMS UA services

• Specification maintenance and development

– WG maintenance

– Liasion with IEC TC13 WG 14

– Liaison with CENELEC TC13

– Liaison with CEN TC294

• Registration org of IEC 62056 standard elements

• Training seminars

• Conformance certification

• Technical support

• Public forum Q/A

2: Growth in standardization


2014

IEC

62056

Ed. 1:

2002

IEC

62056

Ed. 2:

2006

IEC

62056

Ed. 3:

2013

Blue

Book

Ed.

10

2010

Green

Book

Ed. 7

2009

Blue

Book

Ed. 9

2009

Blue

Book

Ed. 8

2007

Green

Book

Ed. 6

2007

Blue

Book

Ed.

11

2013

Green

Book

Ed. 8

2013

Blue

Book

Ed. 7

2005

Blue

Book

Ed. 6

2004

Established in 1997

Blue

Book

Ed. 5

2002

Green

Book

Ed. 4

2004

Green

Book

Ed. 3

2002

Green

Book

Ed. 5

2005

Green

Book

Ed. 2

2001

Blue

Book

Ed. 4

2001

Yellow

Book

Ed. 3

2007

Yellow

Book

Ed. 2

2002

Yellow

Book

Ed. 2

2001

Green

Book

Ed. 1

2000

Blue

Book

Ed. 0

1998

Blue

Book

Ed. 3

2000

Green

Book

Ed. 0

1998

EN

13757

Ed. 1:

2002

EN

13757

Ed. 2:

2013

EN

52056

EN

50568

Yellow

Book

Ed. 5

2013

Yellow

Book

Ed. 4

2010

1998 2000 2002 2004 2006 2008 2010 2012

IEC

62056

Ed. 4:

launch

3: The seven growth: COSEM model of metering functions


Image transfer

Limiter /

Disconnector

Decision and

control

Security setup

Queue

Push

COSEM

model

Account /

Payment

3.1: COSEM model of Push operation

• Predefined set of data

• Pre-defined destinations

• Predefined conditions


3.2: COSEM model: Payment metering / Accounting


• Payment model based on

IEC 62055-21

• Local or central accounting

• Pre or postpayment

• Currency or energy based

• Tokens of existing systems

can be used (e.g. STS)

Charge n

Charge 2

Charge 1

e.g.

consumption

Credit n

Account (one / energy type)

- Mode: Pre / postpayment

- Available credit

- Account status (balance,

active / inactive)

- List of credits and rules

- List of charges

- Token credit distrubution

Credit 2

Credit 1

e.g. token credit

One credit per source of income:

- e.g. token purchased,

emergency, reserve...

- only one is active at a time

- when one is exhausted,

the next one can be activated

One charge per expenditure

- e.g. consumption, standing

charge, payment based...

- all are active at any given time

Charges take effect against

currently active credit

Token gateway

- represents amount

purchased

- pays back debts

- tops up credits

3.3: COSEM model: supply control function


Disconnector

mode

status

connect

disconnect

- Local actions: scripts

- Register monitors / Schedules

- Remote actions

Arbitrator

permissions

weighting

current_state

last_outcome

actions

request_action

Disconnect / reconnect

due to credit

Disconnect / Reconnect for load

limitation

Non disconnection period

Requests may conflict with each

other – a decision has to be made

Script table

List of scripts:

- connect

- disconnect

- do nothing

execute

3.4: Message queue


Queue object

Head End

System

DLMS/COSEM

client

and

YY client

queue_in

queue_out

logical_name

append_to_queue_in

append_to_queue_out

End device

DLMS/COSEM

or

XX / COSEM

or

XX / YY

server

GET (selective)

GET (selective)

(DL

MS

/ n

on

-DL

MS

Se

rvic

e m

app

ing)

ACTION

pick_from_queue_in

pick_from_queue_out

GET / SET device_address

device_capabilities

last_report_time

reporting_interval

GET / SET

GET

GET/SET

queue_in_qty

queue_out_qty

GET / SET

GET

GET

ACTION

ACTION

ACTION

DLMS capable mediaDLMS or XX

capable media

• Queue DLMS/COSEM non-DLMS/COSEM messages for devices on the local network

• For battery operated (sleepy) devices, low throughput local network technologies

4: The seven growth: DLMS messaging


Access service

DataNotification

service

Gateway

Block recovery

Compression

Cmpact array /

Compact data

DLMS

messaging

Streaming

4.1: The ACCESS service

• Unified ACCESS (-GET, -SET, -ACTION) to COSEM objects

• Allows protection of messages, data and functions

• Improves efficiency

– Less round trips: working with lists

– Compact-array: Type description sent only once for identical data

– Compact-data: Only type description identifier is sent (template ID)

– Compression V.44

– Bidirectional block transfer

– Lost block recovery

– Streaming


List of DLMS service requests

List of DLMS service responses

5: The seven growth: transport


IEC 62056-8-3

S-FSK PLC

(IEC 61334-5-1)

prTS 52056-8-4

OFDM PLC for

PRIME networks

(ITU-T G.9904)

prTS 52056-8-7

AMC-SS PLC

IEC 62056-3-1

Twisted pair

(Euridis)

Draft IEC 62056-8-6

High-speed DMT

PLC profile

(ISO/IEC 12139-1)

DLMS/COSEM

comm.

profiles

IEC 62056-9-1

Web services to

access servers

prTS 52056-8-5

OFDM PLC for

G3-PLC networks

(ITU-T G.9903)

3 M meters installed

10 k meters installed

5 M meters installed

(not all DLMS/COSEM)

5.1

IEC 62056

DLMS/COSEM

Communication

profiles


Wide area networksAccess networks Local networks

IEC 62056-6-1 OBIS Object identification system

IEC 62056-6-2 COSEM interface classes

IEC 62056-5-3 DLMS/COSEM Application layer

IEC 62056-7-6

Three-layer HDLC profile

IEC 62056-8-3

S-FSK PLC profile

prTS 52056-8-4

Narrow-band OFDM PLC

profile for PRIME networks

prTS 52056-8-5

Narrow-band OFDM PLC

profile for G3-PLC networks

draft IEC 62056-8-6

High-speed DMT PLC profile

IEC 62056-9-1

Profile using web services

to access servers

M-Bus (EN 13757) profile

prTS 52056-8-7

AMC-SS PLC profile

Media specific lower layers

Phy – MAC – Convergence – Transport

Profile standard published Profile standard in development

IEC 62056-9-7

TCP/UDP-IP profile

IEC 62056-3-1

Twisted pair with

carrier signalling

5.2 DLMS/COSEM profiles: SMITP (Meters&More) and OSGP

• Both specifications use B-PSK PLC

• Both specifications use tables to represent data:

– SMITP tables have been specified by ENEL

– OSGP tables are similar to ANSI C12.19 Utility tables

• Implementations

– Italian Telegestore project – about 35 M meters (mix of the two)

– SMITP (Meters&More) is rolled out now in Spain: 3 M meters

– OSGP is used in several countries

• Both opened for standardization in 2010: M/441 mandate

• CENELEC TC13 WG02 decided for one data model, COSEM

– After consulting the National Committees

• A DLMS/COSEM profile is being developed for both technos

– SMITP: prTS 50568-8 (next meeting 5th June)

– OSGP: prTS 50586-8 (next meeting 6th June)

– The “original” Application layer and data model Tables will be also included


6: Growth of Message and data security


COSEM Data

COSEM Data

COSEM DataAuth.

tag

Digital

signature

Key Info

Key InfoAuth.

tag

Key Info COSEM DataAuth.

Tag.

COSEM Data

Compressed

COSEM data protection

Third party – Client – Server

Compression for efficiency

Authentication for integrity

Encryption for

confidentiality

Digital signature for

proof of origin

DLMS APDU

DLMS APDU

DLMS APDUAuth.

tag

Auth.

tag

DLMS message protection

Client-Server

Authentication for integrity

Encryption for

confidentiality

Carried with

the data

Security policy:

kind(s) of protection applied Security algorithms: NSA Suite B- Symmetric key: AES-GCM / AES key wrap, 128 / 256 bit keys

- Public key: Elliptic curve Digital signature / Diffie-Hellmann, 256 / 384 bit NIST curves

7: Projects and companion specification examples

• Dutch DSMR: PLC, GPRS, M-Bus

• India

• Saudi Arabia

• French Linky G1 (S-FSK PLC and OFDM G3-PLC)

• Spanish Prime: OFDM Prime PLC

• UK SSWG: DLMS COSEM / Zigbee

• Italian residential gas

• European smart metering mandate M/441

• IDIS


Conclusion

• IEC 62056 / EN 13757 DLMS/COSEM has

substantially grown since its introduction

– Functional coverage

– Communication media coverage

– Efficiency

– Worldwide adoption

• Users and projects – Manufacturers - Compliant meter types

– Further developments in the tube

• The standard of choice for smart metering!



Many thanks for your attention!

[email protected]

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mailto:[email protected]

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