SIST EN 50463-3:2018
(Main)Railway applications - Energy measurement on board trains - Part 3: Data handling
Railway applications - Energy measurement on board trains - Part 3: Data handling
This European Standard covers the requirements applicable to the Data Handling System (DHS) of an Energy Measurement System (EMS).
This document also includes the basic requirements for the Data Collecting System (DCS) on-ground, relating to the acquisition and storage and export of Compiled Energy Billing Data (CEBD).
The Conformity Assessment arrangements for the DHS and the DCS are specified in this document.
The settlement system is outside the scope of this standard, and the specification of the interface between DCS and settlement system is outside the scope of this standard.
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 3: Daten-Behandlung
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 3 : Traitement des données
La présente Norme européenne couvre les exigences applicables au système de traitement de données (DHS) d'un système de mesure d'énergie (EMS).
Le présent document comprend également les exigences de base pour le système de collecte des données (DCS) au sol, relatives à l'acquisition, au stockage et à l'exportation des données de facturation d'énergie compilées (CEBD).
Les dispositions d'évaluation de la conformité pour le DHS sont spécifiées dans le présent document.
Le système de règlement et la spécification de l'interface entre le DCS et le système de règlement ne relèvent pas du domaine d'application de la présente norme.
Železniške naprave - Merjenje energije na vlaku - 3. del: Ravnanje s podatki
Ta osnutek evropskega standarda zajema zahteve za sistem ravnanja s podatki (DHS) sistema merjenja energije.
Ta dokument vključuje tudi osnovne zahteve za storitev zbiranja podatkov na tleh v zvezi s pridobivanjem, hranjenjem in z izvažanjem zbranih podatkov o obračunavanju energije.
V tem dokumentu so določeni načini ugotavljanja skladnosti sistema ravnanja s podatki in DCS-ja.
Poravnalni sistem ne spada na področje uporabe tega standarda, ravno tako pa na področje uporabe tega standarda ne spada specifikacija vmesnika med DCS-jem in poravnalnim sistemom.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2018
1DGRPHãþD
SIST EN 50463-3:2013
Železniške naprave - Merjenje energije na vlaku - 3. del: Ravnanje s podatki
Railway applications - Energy measurement on board trains - Part 3: Data handling
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 3: Daten-Behandlung
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 3 : Traitement des
données
Ta slovenski standard je istoveten z: EN 50463-3:2017
ICS:
45.060.10 9OHþQDYR]LOD Tractive stock
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50463-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 45.060.10 Supersedes EN 50463-3:2012
English Version
Railway applications - Energy measurement on board trains -
Part 3: Data handling
Applications ferroviaires - Mesure d'énergie à bord des Bahnanwendungen - Energiemessung auf Bahnfahrzeugen
trains - Partie 3 : Traitement des données - Teil 3: Daten-Behandlung
This European Standard was approved by CENELEC on 2017-05-08. 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, Serbia, 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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50463-3:2017 E
Contents Page
European foreword .6
Introduction .7
1 Scope . 10
2 Normative references. 10
3 Terms, definitions and abbreviations . 10
3.1 Terms and definitions . 10
3.2 Abbreviations . 12
4 Requirements . 12
4.1 General . 12
4.2 Time data . 13
4.2.1 Source . 13
4.2.2 Reference time source . 13
4.2.3 Content . 13
4.2.4 Resolution . 13
4.2.5 Stability . 13
4.2.6 Synchronization . 13
4.2.7 Quality code for time data . 13
4.3 Energy data . 14
4.3.1 Source . 14
4.3.2 Type . 14
4.3.3 Format . 14
4.3.4 Index value overrun . 14
4.3.5 Merging with time data . 14
4.3.6 Quality codes for energy data . 14
4.3.7 k-factor . 15
4.3.8 Accuracy . 15
4.3.9 Transmission from EMF . 15
4.4 Location data . 15
4.4.1 Source . 15
4.4.2 Format . 16
4.4.3 Merging with time data . 16
4.4.4 Accuracy . 16
4.4.5 Quality codes for location data . 16
4.5 Other received or produced data . 17
4.5.1 Types . 17
4.5.2 Data handling prioritization . 17
4.5.3 Time tag . 17
4.6 Consumption point ID (CPID) . 17
4.7 Production of CEBD . 17
4.7.1 General . 17
4.7.2 Type of Data . 17
4.7.3 Time Reference Period . 17
4.7.4 Energy data . 18
4.7.5 Location data . 18
4.7.6 Missing input data . 18
4.7.7 Data integrity . 18
4.7.8 Quality codes. 19
4.7.9 Traction system code . 19
4.8 DHS data storage . 19
4.8.1 Storage periods . 19
4.8.2 Memory Capacity . 19
4.9 Transmission of CEBD from DHS to DCS. 20
4.9.1 General . 20
4.9.2 Type of info . 20
4.9.3 Time between each transfer . 20
4.9.4 Binding to a DCS . 20
4.10 Marking and essential information . 20
4.10.1 Marking of the DHS . 20
4.10.2 Essential information . 20
4.11 Event recording . 21
4.11.1 General . 21
4.11.2 Type of events . 21
4.12 DCS . 22
4.12.1 General . 22
4.12.2 Reception of CEBD from DHS . 22
4.12.3 Request to DHS for CEBD data . 22
4.12.4 Storage of CEBD . 22
4.12.5 Export of CEBD from DCS . 22
4.12.6 Binding the communication with the EMS . 22
4.12.7 EMS discovery. 22
5 Conformity assessment . 22
5.1 General . 22
5.1.1 Introduction . 22
5.1.2 Applicability . 23
5.1.3 Methodology . 23
5.2 Testing framework . 23
5.2.1 General . 23
5.2.2 Reporting . 24
5.3 Design review . 25
5.3.1 General . 25
5.3.2 Interfaces . 25
5.3.3 Access control . 25
5.3.4 Software . 25
5.3.5 RAMS . 25
5.3.6 Internal clock . 25
5.3.7 Location data source . 25
5.3.8 DHS priorities . 25
5.3.9 Transmission of CEBD to DCS . 25
5.3.10 Dataflow security . 25
5.3.11 Event logs . 26
5.4 Type testing . 26
5.4.1 General . 26
5.4.2 Visual inspection. 26
5.4.3 Environmental testing . 26
5.4.4 Mechanical testing . 27
5.4.5 Electrical testing . 27
5.4.6 Access control . 28
5.4.7 Interfaces . 29
5.4.8 Functional testing . 29
5.5 Routine testing . 35
5.5.1 General . 35
5.5.2 Visual inspection. 35
5.5.3 Check of marking . 35
5.5.4 Functional testing . 35
5.5.5 Insulation test . 35
5.6 DCS conformity assessment . 35
5.6.1 General . 35
5.6.2 Design review . 35
5.6.3 Functional Testing . 35
Annex ZZ (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2008/57/EC . 37
Bibliography . 38
Figures
Figure 1 — EMS functional structure and dataflow diagram .9
Figure 2 — Example of energy index value . 11
Tables
Table 1 — Time data quality codes . 13
Table 2 — Energy data quality codes . 15
Table 3 — Location data format . 16
Table 4 — Location data quality codes . 16
Table 5 — Traction system codes . 19
Table ZZ.1 — Correspondence between this European Standard, the TSI “Locomotives and
Passenger Rolling Stock” (REGULATION (EU) No 1302/2014 of 18 November 2014) and
Directive 2008/57/EC amended by Directive 2011/18/EU . 37
Table ZZ.2 — Correspondence between this European Standard, the TSI “Energy”
(REGULATION (EU) No 1301/2014 of 18 November 2014) and Directive 2008/57/EC amended by
Directive 2011/18/EU . 37
European foreword
This document (EN 50463-3:2017) has been prepared by CLC/TC 9X “Electrical and electronic
applications for railways”.
The following dates are fixed:
• latest date by which this document has (dop) 2018-04-06
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-10-06
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50463-3:2012.
EN 50463-3 includes the following significant technical changes with respect to EN 50463-3:2012:
— updated requirements for DCS, CEBD, quality codes and logs (Clause 4).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
This document is Part 3 of the EN 50463 series which consists of the following parts, under the common
title Railway applications — Energy measurement on board trains:
— Part 1: General;
— Part 2: Energy measuring;
— Part 3: Data handling;
— Part 4: Communication;
— Part 5: Conformity assessment.
This series of European Standards follows the functional guidelines description in
EN ISO/IEC 17000:2004, Annex A “Principles of conformity assessment”, tailored to the Energy
Measurement System (EMS).
The requirements for Energy Measurement Systems in the relevant Technical Specifications for
Interoperability are supported by this series of European Standards.
Introduction
The Energy Measurement System provides measurement and data suitable for billing and may also be
used for energy management, e.g. energy saving.
This series of European Standards uses the functional approach to describe the Energy Measurement
System and on-ground Data Collection Service. These functions are implemented in one or more physical
devices. The user of this series of standards is free to choose the physical implementation arrangements.
a) Structure and main contents of the EN 50463 series:
This series of European Standards is divided into five parts. The titles and brief descriptions of each
part are given below:
1) EN 50463-1 — General:
The scope of EN 50463-1 is the Energy Measurement System (EMS).
EN 50463-1 provides system level requirements for the complete EMS and common
requirements for all devices implementing one or more functions of the EMS.
2) EN 50463-2 — Energy measuring:
The scope of EN 50463-2 is the Energy Measurement Function (EMF).
The EMF provides measurement of the consumed and regenerated active energy of a railway
traction unit. If the traction unit is designed for use on AC traction systems the EMF also
provides measurement of reactive energy. The EMF provides the measured quantities via an
interface to the Data Handling System.
The EMF consists of the three functions: Voltage Measurement Function, Current Measurement
Function and Energy Calculation Function. For each of these functions, accuracy classes are
specified and associated reference conditions are defined. EN 50463-2 also defines all specific
requirements for all functions of the EMF.
The Voltage Measurement Function measures the voltage of the Contact Line system and the
Current Measurement Function measures the current taken from and returned to the Contact
Line system. These functions provide signal inputs to the Energy Calculation Function.
The Energy Calculation Function inputs the signals from the Current and Voltage Measurement
Functions and calculates a set of values representing the consumed and regenerated energies.
These values are transferred to the Data Handling System and are used in the creation of
Compiled Energy Billing Data (CEBD).
The standard has been developed taking into account that in some applications the EMF may be
subjected to legal metrological control. All relevant metrological aspects are covered in
EN 50463-2.
EN 50463-2 also defines the conformity assessment of the EMF.
3) EN 50463-3 — Data handling:
The scope of EN 50463-3 is the Data Handling System (DHS) and the associated requirements
of Data Collecting System (DCS).
The on board DHS receives, produces and stores data, ready for transmission to any authorized
receiver of data onboard or on ground. The main goal of the DHS is to produce Compiled
Energy Billing Data (CEBD) and transfer it to an on ground Data Collecting System (DCS). The
DHS can support other functionality on board or on ground with data (e.g. for energy
management, driver advisory systems, etc.), as long as this does not conflict with the main goal.
The DCS on-ground receives Compiled Energy Billing Data and transfer it to settlement system.
EN 50463-3 also defines the conformity assessment of the DHS and for the transfer of CEBD to
an on-ground Data Collecting System (DCS).
4) EN 50463-4 — Communication:
The scope of EN 50463-4 is the communication services.
This part of EN 50463 gives requirements and guidance regarding the data communication
between the functions implemented within EMS as well as between such functions and other on
board units where data are exchanged using a communications protocol stack over a dedicated
physical interface or a shared network.
It includes the reference to the on board to ground communication service and covers the
requirements necessary to support data transfer between DHS and DCS including the transfer of
CEBD on an interoperable basis.
EN 50463-4 also defines the conformity assessment of the communications services.
5) EN 50463-5 — Conformity assessment:
The scope of EN 50463-5 is the conformity assessment procedures for the EMS.
EN 50463-5 also covers re-verification procedures and conformity assessment in the event of
the replacement of a device of the EMS.
b) EMS functional structure and dataflow:
Figure 1 illustrates the functional structure of the EMS, the main sub-functions and the structure of
the dataflow and is informative only. Only the main interfaces required by this standard are displayed
by arrows.
Since the communication function is distributed throughout the EMS, it has been widely omitted for
clarity, except for the train to ground communication. Not all interfaces are shown.
Settlement
System
Time Reference Source
Location Reference Source
Communication
Communication Function
Function
Current Measurement Function EN 50463-4
Voltage Measurement Function
Data
Energy Calculation Function
Data Handling Funtion
Collecting
Energy Measurement Function Data Handling System
System
(EMF) (DHS)
(DCS)
EN 50463-2 (Energy Measuring) EN 50463-3 (Data Handling)
Energy Measurement System (EMS)
EN 50463-1 (General), EN 50463-4 (Communication), EN 50463-5 (Conformity Assessment)
On-board (Traction Unit)
On-ground
Figure 1 — EMS functional structure and dataflow diagram
1 Scope
This European Standard covers the requirements applicable to the Data Handling System (DHS) of an
Energy Measurement System (EMS).
This document also includes the basic requirements for the Data Collecting System (DCS) on-ground,
relating to the acquisition and storage and export of Compiled Energy Billing Data (CEBD).
The Conformity Assessment arrangements for the DHS and the DCS are specified in this document.
The settlement system is outside the scope of this standard, and the specification of the interface
between DCS and settlement system is outside the scope of this standard.
2 Normative references
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.
EN 45545-2:2013+A1:2015, Railway applications — Fire protection on railway vehicles — Part 2:
Requirements for fire behaviour of materials and components
EN 45545-5:2013+A1:2015, Railway applications — Fire protection on railway vehicles — Part 5: Fire
safety requirements for electrical equipment including that of trolley buses, track guided buses and
magnetic levitation vehicles
EN 50121-3-2:2015, Railway applications — Electromagnetic compatibility — Part 3-2: Rolling stock —
Apparatus
EN 50155:2017, Railway applications — Rolling stock — Electronic equipment
EN 50463-1:2017, Railway applications — Energy measurement on board trains — Part 1: General
EN 50463-2:2017, Railway applications — Energy measurement on board trains — Part 2: Energy
measuring
EN 50463-4:2017, Railway applications — Energy measurement on board trains — Part 4:
Communication
EN 50463-5:2017, Railway applications — Energy measurement on board trains — Part 5: Conformity
assessment
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 61373:2010, Railway applications — Rolling stock equipment — Shock and vibration tests
(IEC 61373:2010)
World Geodetic System, revision WGS 84
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50463-1 and the following apply.
NOTE When possible, the following definitions have been taken from the relevant chapters of the International
Electrotechnical Vocabulary (IEV), IEC 60050–311, IEC 60050–312, IEC 60050–313, IEC 60050–314, IEC 60050–
321 and IEC 60050–811. In such cases, the appropriate IEV reference is given. Certain new definitions or
modifications of IEV definitions have been added in this standard in order to facilitate understanding. Expression of
the performance of electrical and electronic measuring equipment has been taken from EN 60359.
3.1.1
Coordinated Universal Time
UTC
time scale which forms the basis of a coordinated radio dissemination of standard frequencies and time
signals, and corresponds exactly in rate with international atomic time, but differs from it by an integral
number of seconds
Note 1 to entry: Coordinated universal time is established by the International Bureau of Weights and Measures
(BIPM) and the International Earth Rotation Services (IERS).
Note 2 to entry: The UTC scales is adjusted by the insertion or deletion of seconds, so called positive or negative
leap seconds, to ensure approximate agreement with UT1.
[SOURCE: IEC 60050-713:1998, 713-05-20]
3.1.2
energy delta value
energy consumed and/or regenerated during a time period
Note 1 to entry: See Figure 2 for example.
3.1.3
energy index value
total accumulated energy consumption and/or energy regeneration at the end of a time period
Note 1 to entry: See Figure 2 for example.
energy index value:
2350.0 2360.0 2372.2 2379.8 2394.1 2405.8
10.0 12.2 7.6 14.3 11.7
energy delta value:
Timeline:
10:35 10:40 10:45 10:50 10:55 11:00
Figure 2 — Example of energy index value
3.1.4
flag
code indicating information relevant to the functioning of the EMS
Note 1 to entry: Examples include operational status, etc.
3.1.5
index value overrun
return to zero of the index value after reaching the maximum value allowed by the register
3.1.6
k-factor
multiplicand necessary to convert a secondary value into a primary value
Note 1 to entry: Each Voltage Measurement Function and/or Current Measurement Function can have a specific k-
factor. If the k-factor is applied to Energy Data, this factor is the product of the k-factors of the Voltage Measurement
Function and/or Current Measurement Function used.
3.1.7
location data
data describing the geographical position of the traction unit
3.1.8
log
list or set of lists of recorded events
3.1.9
primary value
value referred to the measuring inputs of an EMF
3.1.10
secondary value
value of current, voltage, power or energy which is equal to a primary value when multiplied by a specific
k-factor
3.1.11
time data
data describing a time and date of a defined time source
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
CEBD Compiled Energy Billing Data
CPID Consumption Point Identification
DCS Data Collecting System
DHS Data Handling System
ECF Energy Calculation Function
EMF Energy Measurement Function
EMS Energy Measurement System
RAMS Reliability, Availability, Maintainability and Safety
TRP Time Reference Period
UTC Coordinated Universal Time
4 Requirements
4.1 General
The requirements in EN 50463-1:2017, Clause 4 apply to any device containing one or more functions of
the DHS where applicable. EN 50463-3 defines additional requirements specific to the DHS and basic
requirements for the DCS.
The DHS shall comply with all subclauses of 4.1 except for 4.12.
The DCS shall comply with the requirements in 4.12 only.
4.2 Time data
4.2.1 Source
The DHS shall produce time data using an internal time source (clock).
4.2.2 Reference time source
The internal time source shall use as its reference Standard UTC date/time (UTC +0).
4.2.3 Content
Each time data shall include year, month, day, hour, minute and second.
4.2.4 Resolution
The time data shall have resolution of 1 s.
4.2.5 Stability
−6
The internal time source shall have a stability of 20 × 10 or better.
4.2.6 Synchronization
The internal time source shall not deviate from the reference time source by more than 2 s. This shall be
ensured by check of synchronization between the internal time source and one or more external time
source(s) on a regular basis.
All synchronization events shall be logged, except successful automatic synchronization events were
deviation was less than 2 s.
Where applicable, the DHS shall be able to undertake correction to account for leap second off-set if not
already undertaken at source.
4.2.7 Quality code for time data
Each time data in the DHS shall be accompanied by a time data quality code.
One of the following quality codes shall be used with time data:
Table 1 — Time data quality codes
Rank Value Read as Interpretation
1 127 Measured There is no indication of a possible error in the time data or time
source
2 61 Uncertain Synchronization has adjusted the clock more than 2 s,
or there is a possible error in:
a) the internal time source or in the time data provided by it or
b) time data attached to other data received by the DHS
The alternatives presented in the above list are ranked from 1 to 2, where 1 is the highest rank.
NOTE The codes are based on the UN/CEFACT/EDED (EDIFACT Data Element Directory), D.14B, Data
Element 4405 (Status description code).
A synchronization where the clock is adjusted less than 2 s is not regarded as an error and shall in itself
not result in a change of quality code from 127.
4.3 Energy data
4.3.1 Source
The DHS shall be able to receive energy data from one or more ECF.
If the DHS is capable of interfacing with multiple EMF in an EMS configuration, then the DHS shall be
able to identify each EMF uniquely. It shall be ensured that the DHS allocates the energy data to the
correct register and CEBD.
4.3.2 Type
The DHS shall receive energy data from the ECF necessary for the creation of CEBD.
NOTE Each energy data received from an ECF consist of two mandatory values (active energy
consumed/regenerated) and two conditional values (reactive energy consumed/generated, if AC electricity type is
measured by EMF).
4.3.3 Format
The values in the energy data received from an ECF will be in units of Watt-hour (active energy) and var-
hour (reactive energy) or their decimal-multiples.
The energy data received from an ECF is either energy delta values or energy index values or both.
If the only energy data received from an ECF are delta values and the DHS also produces optional index
values, the DHS shall use these delta values to produce the index values.
If the only energy data received from an ECF are index values, the DHS shall use these index values to
produce the delta values.
If the energy data received from an ECF are index values and delta values, the DHS shall use these
inputs to produce energy data of the same type (e.g. delta inputs are used by the DHS to produce delta
values only).
NOTE The algorithms for producing energy delta values in CEBD are specified in 4.7.4.
4.3.4 Index value overrun
The DHS shall be able to detect any index value overrun in an ECF from the energy data received from
the ECF. When this occurs, the DHS shall still be able to calculate required energy delta values.
4.3.5 Merging with time data
Energy data in the DHS shall be accompanied by time data according to 4.2, where required for the
production of CEBD. If the energy data provided by the ECF does not include time data, the DHS shall
add time data without introducing any time displacement error to the energy data.
4.3.6 Quality codes for energy data
Each energy data in the DHS shall be accompanied by an energy data quality code.
One of the following quality codes shall be used with energy data:
Table 2 — Energy data quality codes
Rank Value Read as Interpretation
1 127 Measured The energy data are based on measurements and calculations
in the ECF and there is no indication of a possible error
2 61 Uncertain There is a possible error in the energy data received from the
ECF
3 46 Non- The DHS has no energy data available for the time period
existent represented by the time data.
The alternatives presented in the above list are ranked from 1 to 3, where 1 is the highest rank.
Examples of situations that when identified by the DHS should result in quality code 61: partially
missing energy data, negative values, extreme values, indication of EMF malfunction, energy
data received with quality code 61, attached time data received with quality code 61.
NOTE The codes are based on the UN/CEFACT/EDED (EDIFACT Data Element Directory), D.14B, Data
Element 4405 (Status description code).
If energy data are received from ECF with quality code attached, then these quality codes shall be used
as part of the basis for setting the quality code for each energy data when received to the DHS.
4.3.7 k-factor
Any DHS intended to be able to receive energy data as secondary values from one or more ECF, shall be
able to:
a) convert the secondary values to primary values upon reception of energy data to the DHS, by using
the correct k-factor;
b) store k-factor(s) in a non-volatile access-protected memory;
c) log each change of k-factor.
NOTE An ECF might be configured to send a flag to the DHS for each change of k-factor in the EMF. If not, the
k-factor can also be found in the essential information of the intended ECF.
4.3.8 Accuracy
Energy data production within the DHS shall not introduce errors which degrade the accuracy of the input
data.
4.3.9 Transmission from EMF
The DHS energy data transfer arrangements shall be compatible with its intended EMF(s). The transfer of
energy data from a compatible ECF shall enable the DHS to fulfil the requirements in 4.7.
The transfer arrangements shall ensure the DHS receives a complete set of energy data for each time
reference period before commencing the transfer of energy data for the next time period.
NOTE The energy data might have shorter measurement period than TRP when received to the DHS.
See EN 50463–2:2017, 4.4.8. for requirements of the timelength for which each energy data represents.
4.4 Location data
4.4.1 Source
The DHS shall be able to receive location data from an on-board function providing location data
originating from an external source. It may also be able to receive location data from additional sources of
location data generated on-board the traction unit.
4.4.2 Format
Location data shall be based on the World Geodetic System, revision WGS 84.
Location data used in the DHS shall be expressed as Longitude and Latitude using the format in Table 3:
Table 3 — Location data format
Format Latitude Longitude Minimum number of decimals
Decimal Degrees ±DD.XXXXX ±DDD.XXXXX 5
Abbreviations: D = degree digit, X = decimals. Positive value is North/West, Negative value is
South/East.
4.4.3 Merging with time data
Any location data received by the DHS without time data in compliance with 4.2 shall be compiled with
the corresponding time data by the DHS.
4.4.4 Accuracy
In open air the location data shall have an accuracy of at least 250 m.
4.4.5 Quality codes for location data
Each location data in the DHS shall be accompanied by a location data quality code.
One of the following quality codes shall be used with location data:
Table 4 — Location data quality codes
Rank Value Read as Interpretation
1 127 Measured the location data received by the DHS is trustworthy, i.e.
location data are based on coordinates provided from a
source external to the traction unit, giving longitude and
latitude coordinates and these coordinates are not older
than 15 s
2 56 Estimated location data based on coordinates from an additional
source on-board the traction unit (see 4.4.1), and these
coordinates are not older than 15 s
3 61 Uncertain location data older than 15 s or the DHS has identified
possible error in the location data
4 46 Non- the DHS has no location data available for the
existent measurement period represented by the time data
The alternatives presented in the above list are ranked from 1 to 4, where 1 is the highest
rank.
Examples of situations that when identified by the DHS should result in quality code 61:
partially missing energy data, extreme values, indication of GPS malfunction, location data
received with too high inaccuracy (see 4.4.4) or with quality code 61, attached time data
received with quality code 61.
NOTE The codes are based on the UN/CEFACT/EDED (EDIFACT Data Element Directory),
D.14B, Data Element 4405 (Status description code).
If location data received by the DHS carries quality codes, then these quality codes shall be used as part
of the basis for setting the quality code for each location data when received to the DHS.
If the DHS has more than one location data available at time of use, then the DHS shall use the location
data with the highest rank. If these location data are of equal rank, the location data with newest time data
shall be used.
4.5 Other received or produced data
4.
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