This leaflet intends to fill the existing normative gap on diagnostics for all kinds of railway vehicles, widening system functionality to include the latest technological developments.

Summary 1

1 - Introduction 2

2 - Scope and field of application 3

2.1 - Purpose of the diagnostic concept 3

2.2 - Railway System Architecture 4

2.3 - International bodies 5

2.4 - National Organisation 6

2.5 - Railway Operations 6

2.6 - Structural Sector Subsystem Management 7

2.7 - Structural Command 7

2.8 - Structural Control 8

2.9 - Functional Evolution 8

2.10 -Functional Status 8

2.11 -Functional Sector 8

2.12 -Structural Sector 9

2.13 -Train Failure Diagnostics subsystem 12

3 - Diagnostic Methods and Requirements 24

3.1 - Train Metamodel for the Diagnostics Method 24

3.2 - Diagnostic Method description 25

3.3 - Definition of the "Train Life Cycle" requirement 26

3.4 - Definition of the "Functional Architecture" requirement 26

3.5 - Identification of the "Structural Architecture" requirement 26

3.6 - Qualitative requirements 26

3.7 - Quantitative Requirements 29

4 - Specification for Diagnostics 32

4.1 - Architecture 32

4.2 - Acquisition of diagnostic data 35

4.3 - Classification of diagnostic data 36

4.4 - Classification of diagnostic memories 37

4.5 - Operational data 38

4.6 - Low-power operation 39

5 - Data Transfer 40

5.1 - General 40

5.2 - Dataset 40

5.3 - Transmission using wireless link 44

5.4 - Access Protection 45

5.5 - Transmission Security 45

5.6 - Transmission Time 45

5.7 - Data transfer for a consist of vehicles with traction functionality 46

6 - Standardised interfaces 47

6.1 - Human - machine interface (HMI) 47

6.2 - Computer Interfaces 52

6.3 - Data transmission interface 52

List of abbreviations 53

Glossary 55

Bibliography 58

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