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IEC 61158-5-4
Edition 3.0 2019-04
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 5-4: Application layer service definition – Type 4 elements
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IEC 61158-5-4
Edition 3.0 2019-04
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 5-4: Application layer service definition – Type 4 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-6739-4
– 2 – IEC 61158-5-4:2019 © IEC 2019
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
1.1 General . 8
1.2 Specifications . 9
1.3 Conformance . 9
2 Normative references . 9
3 Terms, definitions, symbols, abbreviations and conventions . 10
3.1 ISO/IEC 7498-1 terms . 10
3.2 ISO/IEC 8822 terms . 10
3.3 ISO/IEC 9545 terms . 10
3.4 ISO/IEC 8824-1 terms . 11
3.5 Fieldbus data-link layer terms . 11
3.6 Fieldbus application layer specific definitions . 11
3.7 Abbreviations and symbols . 17
3.8 Conventions . 18
3.8.1 Overview . 18
3.8.2 General conventions . 19
3.8.3 Conventions for class definitions . 19
3.8.4 Conventions for service definitions . 20
4 Concepts . 21
4.1 Overview . 21
4.2 Architectural relationships . 22
4.2.1 Relationship to the Application Layer of the OSI basic reference model . 22
4.2.2 Relationships to other fieldbus entities . 22
4.3 Fieldbus Application Layer structure . 24
4.3.1 Overview . 24
4.3.2 Fundamental concepts . 24
4.3.3 Fieldbus application processes . 24
4.3.4 Application process objects . 28
4.3.5 Application entities . 30
4.3.6 Fieldbus application service elements . 31
4.3.7 Application relationships . 34
4.4 Fieldbus Application Layer naming and addressing . 36
4.4.1 General . 36
4.4.2 Identifying objects accessed through the FAL . 36
4.4.3 Addressing APs accessed through the FAL . 37
4.5 Architecture summary . 37
4.6 FAL service procedures . 37
4.6.1 FAL confirmed service procedures . 37
4.6.2 FAL unconfirmed service procedures . 38
4.7 Common FAL attributes . 38
4.8 Common FAL service parameters . 39
4.9 APDU size . 39
5 Type 4 communication model specification . 40
5.1 Concepts . 40
5.1.1 Overview . 40
5.1.2 Application entities . 40
5.1.3 Gateway and routing . 42
5.1.4 Architecture summary . 43
5.1.5 FAL service procedures and time sequence diagrams . 44
5.2 Variable ASE . 46
5.2.1 Variable types . 46
5.2.2 Variable model class specification . 48
5.2.3 Basic variable type specifications . 49
5.2.4 Constructed variable type specifications . 53
5.2.5 Route endpoint ASE . 57
5.2.6 Route endpoint ASE service specification . 60
5.3 Application relationship ASE . 64
5.3.1 Overview . 64
5.3.2 Application relationship class specification . 65
5.3.3 Application relationship ASE service specifications . 66
Bibliography . 71
Figure 1 – Relationship to the OSI basic reference model . 22
Figure 2 – Architectural positioning of the fieldbus Application Layer . 23
Figure 3 – Client/server interactions . 25
Figure 4 – Pull model interactions . 26
Figure 5 – Push model interactions . 27
Figure 6 – APOs services conveyed by the FAL . 29
Figure 7 – Application entity structure . 30
Figure 8 – Example FAL ASEs . 32
Figure 9 – FAL management of objects . 32
Figure 10 – ASE service conveyance . 33
Figure 11 – Defined and established AREPs . 36
Figure 12 – FAL architectural components . 37
Figure 13 – FAL AE . 41
Figure 14 – Summary of the FAL architecture . 43
Figure 15 – FAL service procedure overview. 44
Figure 16 – Time sequence diagram for the confirmed services . 45
Figure 17 – Time sequence diagram for unconfirmed services . 46
Table 1 – REQUEST service parameters . 60
Table 2 – RESPONSE service parameters . 61
Table 3 – Error codes by source . 62
Table 4 – Reserve REP service parameters . 63
– 4 – IEC 61158-5-4:2019 © IEC 2019
Table 5 – Free AREP service parameters . 63
Table 6 – Get REP attribute service parameters . 63
Table 7 – Set REP attribute service parameters . 64
Table 8 – AR send service parameters . 68
Table 9 – AR acknowledge service parameters . 68
Table 10 – AR get attributes service parameters . 69
Table 11 – AR set attributes service parameters . 69
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 5-4: Application layer service definition –
Type 4 elements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC Nationa
...