oSIST prEN 50463-4:2025

Railway applications - Energy measurement on board trains - Part 4: Communication

EN 50463-4 applies to the on board and on board to ground communication services. EN 50463-4 covers the data communication using digital interfaces between functions implemented within the EMS, between EMS function and other on-board subsystems and between EMS and ground communication services.

Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 4: Kommunikation

Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 4 : Communication

Železniške naprave - Merjenje energije na vlaku - 4. del: Komunikacija

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Dec-2025
• ICS: 45.060.10 - Tractive stock
• Technical Committee: ŽEN - Electrical applications for railways
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 05-Nov-2025
• Due Date: 25-Mar-2026
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/591 - Standardisation request to the European Committee for Standardisation and the European Committee for Electrotechnical Standardisation as regards railway products in support of Directive (EU) 2016/797
• Ref Project: prEN 50463-4:2025 - Railway applications - Energy measurement on board trains - Part 4: Communication

Relations

• Revises: SIST EN 50463-4:2018/A1:2025 - Railway applications - Energy measurement on board trains - Part 4: Communication
• Effective Date: 10-Dec-2024
• Revises: SIST EN 50463-4:2018 - Railway applications - Energy measurement on board trains - Part 4: Communication
• Effective Date: 10-Dec-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2025
Železniške naprave - Merjenje energije na vlaku - 4. del: Komunikacija
Railway applications - Energy measurement on board trains - Part 4: Communication
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 4: Kommunikation
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 4 : Communication
Ta slovenski standard je istoveten z: prEN 50463-4:2025
ICS:
45.060.10 Vlečna vozila Tractive stock
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN 50463-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 45.060.10 Will supersede EN 50463-4:2017; EN 50463-
4:2017/A1:2025
English Version
Railway applications - Energy measurement on board trains -
Part 4: Communication
Applications ferroviaires - Mesure d'énergie à bord des Bahnanwendungen - Energiemessung auf Bahnfahrzeugen
trains - Partie 4 : Communication - Teil 4: Kommunikation
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-01-23.

It has been drawn up by CLC/TC 9X.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 81059 Ref. No. prEN 50463-4:2025 E

1 Contents Page
2 European foreword . 10
3 Introduction . 12
4 1 Scope . 15
5 2 Normative references . 15
6 3 Terms, definitions and abbreviations . 16
7 3.1 Terms and definitions . 16
8 3.2 Abbreviations . 20
9 4 Requirements . 21
10 4.1 General . 21
11 4.2 Communication between functions of the EMS . 21
12 4.2.1 General . 21
13 4.2.2 Communication protocols stack . 23
14 4.2.3 Communication security . 23
15 4.2.4 VMF/CMF to ECF Interface (VEI) . 23
16 4.2.5 EMF to DHS interface (EMDI). 24
17 4.2.6 Maintenance/testing interfaces (DSI and ESI) . 24
18 4.2.7 DHS to location function . 25
19 4.2.8 DHS to UTC source . 25
20 4.2.9 DHS to Consist Network digital interface (CNI) . 26
21 4.3 Communication between the EMS and ground . 26
22 4.3.1 General . 26
23 4.3.2 EMS set-up . 26
24 4.3.3 Application services (service layer) . 29
25 4.3.4 Data structures (data layer) . 30
26 4.3.5 Message mechanism (message layer) . 86
27 4.3.6 Application protocols for supporting the message mechanism . 98
28 4.3.7 Communication architecture . 105
29 4.3.8 XML schema version control. 108
30 4.4 Interoperability requirements related to cybersecurity . 108
31 5 Conformity assessment . 109
32 5.1 General . 109
33 5.1.1 Introduction . 109
34 5.1.2 Applicability . 109
35 5.1.3 Methodology . 109
36 5.2 PICS and PIXIT . 109
37 5.2.1 General . 109
38 5.2.2 PICS . 109
39 5.2.3 PIXIT . 109
40 5.3 Design review . 110
41 5.4 Type test procedure . 110
42 5.4.1 General . 110
43 5.4.2 Testing the communication . 110
44 5.4.3 Testing the on-board interfaces . 110
45 5.4.4 Testing the on board to ground interface . 112
46 Annex A (informative) VEI–VMF/CMF to ECF interface implementation example . 114
47 A.1 General . 114
48 A.2 Payload format . 114
49 A.3 Encryption . 115
50 Annex B (informative) PICS structure and instruction . 116
51 B.1 Structure . 116
52 B.2 Instructions for completing the PICS pro-forma . 116
53 B.2.1 PICS table structure . 116
54 B.2.2 Abbreviations used in PICS. 117
55 B.2.3 Ref. column . 117
56 B.2.4 Subclause column . 117
57 B.2.5 Capability column . 117
58 B.2.6 Requirement column . 117
59 B.2.7 Implementation column . 117
60 B.2.8 Parameter values column . 118
61 B.3 PICS pro-forma examples . 118
62 B.3.1 Identification of PICS . 118
63 B.3.2 Identification of the implementation under assessment . 119
64 B.3.3 Identification of the IUA supplier . 119
65 B.3.4 Identification of the standards . 120
66 B.3.5 Global statement of conformity . 120
67 B.3.6 Level of conformity . 120
68 Annex C (informative) Access rights . 121
69 Annex D (normative) XML schemas of the message mechanism . 122
70 D.1 General . 122
71 D.2 Message.xsd . 122
72 Annex E (informative) XML schemas of the mandatory data structures . 123
73 E.1 General . 123
74 E.2 BaseType.xsd . 123
75 E.3 CEBDBlock.xsd . 123
76 E.4 EventSet.xsd . 123
77 E.5 Heartbeat.xsd . 123
78 Annex F (informative) XML schemas of the optional data structures . 124
79 F.1 General . 124
80 F.2 BaseTypes_Extension.xsd . 124
81 F.3 ReadingBlock.xsd . 124
82 F.4 CommunicationConfig.xsd . 124
83 F.5 ChangeCommunicationConfig.xsd . 124
84 F.6 AssetData.xsd . 124
85 F.7 State.xsd . 124
86 Annex G (informative) On board to ground communication XML examples . 125
87 G.1 General . 125
88 G.2 Examples of data structures . 125
89 G.2.1 CEBDBlock .
...