SIST EN 61375-2-3:2016

Electronic railway equipment - Train Communication Network (TCN) - Part 2-3: TCN communication profile (IEC 61375-2-3:2015)

This part of IEC 61375 specifies rules for the data exchange between consists in trains. The
aggregation of these rules defines the TCN communication profile.
The objective of the communication profile is to ensure interoperability between consists of the
said trains with respect to the exchange of information. For this it defines all those items which
are necessary for communication interoperability:
• an architecture with defined train directions related to different train views
• a common functional addressing concept
• common communication protocol for data exchange between functions
• a set of services for train communication control.
As a restriction, this communication profile is adhered to the Ethernet Train Backbone (ETB)
technology as defined in IEC 61375-2-5. Towards the consist networks, a more abstract
interface is defined which does not restrict the appliance of any consist network technology as
for instance MVB (IEC 61375-3-1), CANOpen (IEC 61375-3-3) or ECN (IEC 61375-3-4).
It is not within the scope of the communication profile to define application data content and its
meaning (e.g. syntax and semantics). This is within the responsibility of the application profiles.
Namely two application profiles are explicitly supported as shown in Figure 1: the TCMS
application profile as defined in IEC 61375-2-4, and the onboard multimedia and telematic
services (OMTS) related profiles as defined in the IEC 62580 series.

Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk (TCN) - Teil 2-3: TCN Kommunikationsprofil (IEC 61375-2-3:2015)

Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 2-3: Profil de communication TCN (IEC 61375-2-3:2015)

l'IEC 61375-2-3:2015 spécifie les règles relatives à l'échange de données entre les rames de trains. L'agrégation de ces règles définit le profil de communication TCN. L'objectif du profil de communication est d'assurer l'interopérabilité entre les rames desdits trains du point de vue de l'échange d'informations. Pour cela, il définit l'ensemble des éléments nécessaires à l'interopérabilité de communication:
- une architecture, avec des directions de train définies relatives à différentes vues du train;
- un concept d'adressage fonctionnel commun;
- un protocole de communication commun pour l'échange des données entre les fonctions;
- un ensemble de services pour le contrôle des communications de trains.
Le contenu des corrigenda de décembre 2015 et d'octobre 2016 a été inclus dans cette version.

Železniške elektronske naprave - Komunikacijsko omrežje vlaka (TCN) - 2-3. del: Komunikacijski profil TCN (IEC 61375-2-3:2015)

Ta del standarda IEC 61375 določa pravila za izmenjavo podatkov med sestavi vlaka. Združevanje teh pravil opredeljuje komunikacijski profil TCN.
Cilj komunikacijskega profila je zagotoviti interoperabilnost med sestavi posameznega vlaka z vidika izmenjave informacij. V ta namen opredeljuje vse postavke, potrebne za interoperabilnost komunikacije:
• arhitekturo z opredeljenimi smermi vlaka v povezavi z različnimi pogledi vlaka,
• koncept skupnega funkcionalnega naslavljanja,
• skupni komunikacijski protokol za izmenjavo podatkov med funkcijami,
• nabor storitev za nadzor komunikacije vlaka.
Ob tem velja omejitev, da mora biti komunikacijski profil skladen s tehnologijo ethernetnega hrbteničnega omrežja vlaka (ETB), ki je opredeljena v standardu IEC 61375-2-5. V primerjavi z omrežji sestavov vlaka je opredeljen abstraktnejši vmesnik, ki ne omejuje uporabe posamezne tehnologije omrežja sestavov vlaka, kot je
na primer MVB (IEC 61375-3-1), CANOpen (IEC 61375-3-3) ali ECN (IEC 61375-3-4). Komunikacijski profil ne zajema opredelitve vsebine podatkov aplikacije in njenega pomena (tj. skladnje in semantike). To spada k nalogam profilov aplikacij. Izrecno sta namreč podprta dva profila aplikacij, kot je prikazano na sliki 1: profil aplikacije TCMS, ki je opredeljen v standardu IEC 61375-2-4, in profili, povezani s storitvami večpredstavnosti v vozilu in telematike (OMTS), opredeljeni v družini standardov IEC 62580.

General Information

• Status: Published
• Publication Date: 16-Dec-2015
• ICS: 35.240.60 - IT applications in transport
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: ŽEN - Electrical applications for railways
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Sep-2015
• Due Date: 04-Dec-2015
• Completion Date: 17-Dec-2015
• Ref Project: EN 61375-2-3:2015 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile

Relations

• Corrected By: SIST EN 61375-2-3:2016/AC:2016 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
• Effective Date: 29-Dec-2015
• Corrected By: SIST EN 61375-2-3:2016/AC2:2017 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
• Effective Date: 01-Nov-2016
• Amended By: SIST EN 61375-2-3:2016/A11:2017 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
• Effective Date: 29-Nov-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61375-2-3:2016
01-februar-2016
Železniške elektronske naprave - Komunikacijsko omrežje vlaka (TCN) - 2-3. del:
Komunikacijski profil TCN (IEC 61375-2-3:2015)
Electronic railway equipment - Train Communication Network (TCN) - Part 2-3: TCN
communication profile (IEC 61375-2-3:2015)
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk (TCN) - Teil 2-
3: TCN Kommunikationsprofil (IEC 61375-2-3:2015)
Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 2-3: Profil de
communication TCN (IEC 61375-2-3:2015)
Ta slovenski standard je istoveten z: EN 61375-2-3:2015
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN 61375-2-3:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61375-2-3:2016

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SIST EN 61375-2-3:2016


EUROPEAN STANDARD EN 61375-2-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
September 2015
ICS 45.060

English Version
Electronic railway equipment - Train communication network
(TCN) - Part 2-3: TCN communication profile
(IEC 61375-2-3:2015)
Matériel électronique ferroviaire - Réseau embarqué de Elektronische Betriebsmittel für Bahnen - Zug-
train (TCN) - Partie 2-3: Profil de communication TCN Kommunikations-Netzwerk (TCN) - Teil 2-3: TCN
(IEC 61375-2-3:2015) Kommunikationsprofil
(IEC 61375-2-3:2015)
This European Standard was approved by CENELEC on 2015-08-13. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61375-2-3:2015 E

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SIST EN 61375-2-3:2016
EN 61375-2-3:2015
European foreword
The text of document 9/2029/FDIS, future edition 1 of IEC 61375-2-3, prepared by IEC/TC 9 "Electrical
equipment and systems for railways" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN 61375-2-3:2015.
The following dates are fixed:
(dop) 2016-05-13
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2018-08-13
• latest date by which the national standards conflicting with
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61375-2-3:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61131-3:2013 NOTE Harmonized as EN 61131-3:2013 (not modified).
IEC 61375-3-4 NOTE Harmonized as EN 61375-3-4.
IEC 61508-1:2010 NOTE Harmonized as EN 61508-1:2010 (not modified).
IEC 61784-3-3:2010 NOTE Harmonized as EN 61784-3-3:2010 (not modified).
IEC 62580 NOTE Harmonized in EN 62580 series.
ISO/IEC 7498-1 NOTE Harmonized as EN ISO/IEC 7498-1.
2

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SIST EN 61375-2-3:2016
EN 61375-2-3:2015
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 61375-1 -  Electronic railway equipment - Train EN 61375-1 -
communication network (TCN) -
Part 1: General architecture
IEC 61375-2-1 -  Electronic railway equipment - Train EN 61375-2-1 -
communication network (TCN) -
Part 2-1: Wire Train Bus (WTB)
1)
IEC 61375-2-4 -  Electronic railway equipment - Train - -
communication network (TCN) -
Part 2-4: TCN Application profile
IEC 61375-2-5 -  Electronic railway equipment - Train EN 61375-2-5 -
communication network (TCN) -
Part 2-5: Ethernet train backbone
IEC 62280 -  Railway applications - Communication, - -
signalling and processing systems - Safety
related communication in transmission
systems
ISO/IEC 9646-6 1994 Information technology - Open Systems - -
Interconnection - Conformance testing
methodology and framework -
Part 6: Protocol profile test specification
ISO/IEC 9646-7 1995 Information technology - Open Systems - -
Interconnection - Conformance testing
methodology and framework -
Part 7: Implementation Conformance
Statements

1) At draft stage.
3

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SIST EN 61375-2-3:2016
EN 61375-2-3:2015
Publication Year Title EN/HD Year
ISO/IEC 17011 2004 Conformity assessment - General EN ISO/IEC 17011 2004
requirements for accreditation bodies
accrediting conformity assessment bodies
ISO/IEC 17025 2005 General requirements for the competence EN ISO/IEC 17025 2005
of testing and calibration laboratories

4

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SIST EN 61375-2-3:2016




IEC 61375-2-3

®


Edition 1.0 2015-07




INTERNATIONAL



STANDARD








colour

inside










Electronic railway equipment – Train communication network (TCN) –

Part 2-3: TCN communication profile



























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ELECTROTECHNICAL


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ICS 45.060 ISBN 978-2-8322-2775-6



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN 61375-2-3:2016
– 2 – IEC 61375-2-3:2015  IEC 2015
CONTENTS
FOREWORD . 13
INTRODUCTION . 15
1 Scope . 16
2 Normative references . 17
3 Terms, definitions, abbreviations, acronyms, and conventions . 18
3.1 Terms and definitions . 18
3.2 Abbreviations and acronyms . 26
3.3 Conventions . 28
3.3.1 Base of numeric values . 28
3.3.2 Character strings and citations . 28
3.3.3 Naming conventions . 29
3.3.4 Diagram conventions . 29
3.3.5 Annotation of data structures . 29
4 Architecture . 30
4.1 General . 30
4.2 Physical train architecture (system breakdown). 31
4.2.1 General . 31
4.2.2 Train network architectures . 31
4.2.3 Closed Trains . 34
4.2.4 Directions . 36
4.2.5 Consist and vehicle basic properties . 37
4.3 Logical Train Architecture (Functional Breakdown) . 38
4.3.1 General . 38
4.3.2 Service classification . 38
4.3.3 Operational Services Overview . 39
4.3.4 Service Provider . 39
5 Common ETB framework . 39
5.1 General . 39
5.1.1 Overview . 39
5.1.2 Interoperability . 40
5.2 CSTINFO telegram . 40
5.2.1 General . 40
5.2.2 Closed train support (Option) . 40
5.2.3 Protocol . 40
5.2.4 CSTINFO classes . 40
5.2.5 CSTINFO Notification Message . 41
5.2.6 CSTINFO Request . 42
5.3 Train topology database . 44
5.3.1 General . 44
5.3.2 Computation of the TTDB . 46
5.3.3 Data structure . 50
5.3.4 Train Topology Database for multiple ETBs (Option) . 59
5.4 Service Addressing . 61
5.4.1 General . 61
5.4.2 TCN Domain Name System (TCN-DNS) . 61
5.4.3 TCN Domain Names . 62

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SIST EN 61375-2-3:2016
IEC 61375-2-3:2015  IEC 2015 – 3 –
5.4.4 TCN-URI Scheme . 63
5.4.5 Mapping TCN-URI to IP address . 69
5.4.6 Support of other URI schemas . 73
5.5 TCN-DNS Server . 73
5.5.1 General . 73
5.5.2 Architecture . 73
5.5.3 Functional address resolution . 73
5.5.4 Protocol . 76
5.5.5 Multiple ETBs . 77
5.6 Data exchange . 77
5.6.1 General . 77
5.6.2 Operational network communication . 77
5.6.3 OMTS network communication . 78
5.6.4 Quality of Service (QoS) . 78
5.7 Service discovery . 78
5.8 Train Info Service . 78
6 Services of the communication profile – ETB Control Service . 78
6.1 General . 78
6.2 Communication model . 79
6.3 ECSP Supervision . 79
6.4 ECSP Interconnection . 79
6.4.1 General . 79
6.4.2 ETBCTRL telegram exchange selection . 80
6.4.3 ETBCTRL telegram transmission . 80
6.4.4 Structure of the ETBCTRL telegram . 80
6.4.5 Operational train directory computation process . 83
6.5 Function “Leading” . 86
6.5.1 General . 86
6.5.2 Function primitives . 86
6.5.3 ECSP to ECSP protocol . 88
6.6 Function Confirmation/Correction . 92
6.6.1 General . 92
6.6.2 Function primitives . 92
6.6.3 ECSP to ECSP protocol . 94
6.6.4 State diagram . 97
6.6.5 ECSC Failure . 99
6.7 Computation of the operational train directory . 99
6.7.1 General . 99
6.7.2 Action setCorrInfo . 100
6.7.3 Action computeOpTrnDir . 103
6.8 Function Sleep Mode (Option) . 106
6.8.1 General . 106
6.8.2 Sleep Mode Use Case (informal) . 106
6.8.3 Exclusivity . 108
6.8.4 Function primitives . 108
6.8.5 ECSP to ECSP protocol . 110
Annex A (normative) Train Real-Time Data Protocol (TRDP) . 114
A.1 General . 114
A.2 Lower Layers . 114

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SIST EN 61375-2-3:2016
– 4 – IEC 61375-2-3:2015  IEC 2015
A.2.1 Data link layer . 114
A.2.2 Network Layer . 114
A.2.3 Transport Layer . 115
A.3 TRDP FCS Computation . 116
A.4 Interaction between TRDP user and TRDP Layer . 118
A.5 Communication Identifier (ComId) . 118
A.6 Process Data . 120
A.6.1 Communication model . 120
A.6.2 Roles . 120
A.6.3 Communication pattern . 120
A.6.4 Addressing. 125
A.6.5 PD-PDU . 125
A.6.6 Interaction between application and TRDP protocol layer . 128
A.6.7 Topography counter check . 135
A.6.8 State Machine . 136
A.7 Message Data . 140
A.7.1 Communication model . 140
A.7.2 Roles . 141
A.7.3 Communication pattern . 141
A.7.4 Addressing. 142
A.7.5 MD-PDU . 142
A.7.6 Interaction between application and TRDP layer . 145
A.7.7 Topography counter check . 150
A.7.8 MD protocol state machine . 151
A.7.9 TCP Connection Handling . 160
A.8 Message data echo server (option) . 161
Annex B (normative) Safe Data Transmission (SDTv2) . 162
B.1 General . 162
B.2 Overview of SDTv2 (informal) . 162
B.3 Safety functional requirements . 163
B.4 Safety measures . 163
B.5 Operational states of the SDTv2 channel . 164
B.6 Data presentation . 165
B.7 SC-32 . 165
B.8 SID . 168
B.9 Vital Data Packet . 169
B.10 Exclusivity . 170
B.11 Configuration time parameters. 170
B.12 Safe data source (SDSRC) . 170
B.12.1 General . 170
B.12.2 Safe Data Preparation (Application) . 170
B.12.3 Safe data sending . 171
B.13 Safe data sink (SDSINK) . 172
B.13.1 General . 172
B.13.2 Definitions . 173
B.13.3 SDSINK States . 174
B.13.4 VDP Sampling. 175
B.13.5 VDP Integrity Check . 176
B.13.6 Sink time supervision . 177

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SIST EN 61375-2-3:2016
IEC 61375-2-3:2015  IEC 2015 – 5 –
B.13.7 Guard time check . 177
B.13.8 Latency monitoring . 178
B.13.9 Channel monitoring . 180
B.13.10 SDTv2 Application Interface . 182
B.13.11 Change of operational train composition . 182
B.14 Diagnosis and statistics . 182
B.15 Safe data transmission over MVB (informative) . 183
B.15.1 General . 183
B.15.2 MVB-VDP . 183
B.15.3 SDTV2 protocol deviations for MVB . 184
B.16 SDTv2 with TRDP message data . 184
Annex C (informative) Train Real-Time Data Protocol Configuration (TRDP) . 185
C.1 General . 185
C.2 Device Parameters . 186
C.3 Device Configuration Parameters . 187
C.4 Bus Interface List . 187
C.4.1 General . 187
C.4.2 Bus Interface Configuration . 188
C.5 Mapped Device Parameters . 199
C.5.1 General . 199
C.5.2 Mapped Bus Interface Parameters . 200
C.6 Communication Parameters (ComPar) . 202
C.6.1 General . 202
C.6.2 Default Communication Parameters . 203
C.7 DataSet Parameters . 203
C.7.1 General . 203
C.7.2 DataSet Element . 205
C.7.3 Examples of DataSets . 207
Annex D (informative) Access to End Device (ED) statistics . 211
D.1 General . 211
D.2 Structures . 211
D.2.1 General . 211
D.2.2 tlc_getSubsStatistics . 213
D.2.3 tlc_getPubStatistics. 213
D.2.4 tlc_getUdpListStatistics, tlc_getTcpListStatistics . 213
D.2.5 tlc_getRedStatistics . 214
D.3 ED interface for statistic data access . 214
D.3.1 General . 214
D.3.2 TRDP interface . 214
Annex E (informative) Service interface .
...