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IEC 61158-3-2
Edition 2.1 2019-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 3-2: Data-link layer service definition – Type 2 elements
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IEC 61158-3-2
Edition 2.1 2019-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 3-2: Data-link layer service definition – Type 2 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6856-8
IEC 61158-3-2
Edition 2.1 2019-04
CONSOLIDATED VERSION
REDLINE VERSION
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 3-2: Data-link layer service definition – Type 2 elements
– 2 – IEC 61158-3-2:2014+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
INTRODUCTION to the Amendment . 6
1 Scope . 7
1.1 General . 7
1.2 Specifications . 7
1.3 Conformance . 7
2 Normative references . 8
3 Terms, definitions, symbols, abbreviations and conventions . 8
3.1 Reference model terms and definitions . 8
3.2 Service convention terms and definitions . 10
3.3 Common data-link service terms and definitions . 11
3.4 Additional Type 2 data-link specific definitions . 12
3.5 Common symbols and abbreviations . 15
3.6 Additional Type 2 symbols and abbreviations . 15
3.7 Common conventions . 15
4 Connection-mode and connectionless-mode data-link service . 16
4.1 Overview . 16
4.2 Facilities of the data-link service . 20
4.3 Model of the data-link service . 21
4.4 Sequence of primitives . 23
4.5 Connection-mode data transfer . 25
4.6 Connectionless-mode data transfer . 27
4.7 Queue maintenance . 30
4.8 Tag filter . 32
5 DL-management services . 33
5.1 Sequence of primitives . 33
5.2 Link synchronization . 34
5.3 Synchronized parameter change . 35
5.4 Event reports . 37
5.5 Bad FCS . 39
5.6 Current moderator . 39
5.7 Enable moderator . 40
5.8 Power-up and online . 41
5.9 Listen only . 42
5.10 Time distribution . 43
Bibliography . 45
Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses . 11
Figure 2 – NUT structure . 18
Figure 3 – Medium access during scheduled time . 18
Figure 4 – Medium access during unscheduled time . 19
Figure 5 – Queue model for the peer and multipoint DLS, DLSAPs and their DLCEPs . 20
Figure 6 – Queue model of a multipoint DLS between a sending DLS-user and one or
more receiving DLS-users . 22
© IEC 2019
Figure 7 – DLS primitive time-sequence diagram . 24
Figure 8 – State transition diagram for sequences of DLS primitives at one DLSAP . 25
Figure 9 – Sequence of primitives for a successful connection-mode transfer . 27
Figure 10 – Sequence of primitives for an unsuccessful connection-mode transfer . 27
Figure 11 – Sequence of primitives for a successful connectionless-mode transfer . 30
Figure 12 – Sequence of primitives for an unsuccessful connectionless-mode transfer . 30
Figure 13 – Sequence of primitives for a queue maintenance request . 32
Figure 14 – Sequence of primitives for a tag filter request. 33
Figure 15 – Sequence of primitives for a local link synchronization . 35
Figure 16 – Sequence of primitives for a DLM-get/set parameters request . 37
Figure 17 – Sequence of primitives for a DLM-tMinus change request . 37
Figure 18 – Sequence of primitives for a DLM-event indication . 39
Figure 19 – Sequence of primitives for a DLM-bad-FCS indication . 39
Figure 20 – Sequence of primitives for a DLM-current-moderator indication . 40
Figure 21 – Sequence of primitives for a DLM-enable-moderator request . 41
Figure 22 – Sequence of primitives for a DLM-power-up indication . 42
Figure 23 – Sequence of primitives for a DLM-online request. 42
Figure 24 – Sequence of primitives for a DLM-listen-only request . 42
Table 1 – Summary of connection-mode and connectionless-mode primitives and
parameters . 24
Table 2 – DL-connection-mode transfer primitives and parameters . 26
Table 3 – DL-connectionless-mode transfer primitives and parameters . 28
Table 4 – Fixed tag services available to the DLS-user . 29
Table 5 – DL-queue maintenance primitives and parameters . 31
Table 6 – DL-connectionless-mode tag filter primitives and parameters . 32
Table 7 – Summary of DL-management primitives and parameters . 34
Table 8 – Link synchronization primitives and parameters . 35
Table 9 – Synchronized parameter change primitives and parameters . 36
Table 10 – DLMS-configuration-data . 36
Table 11 – Event report primitives and parameters . 38
Table 12 – DLMS events being reported . 38
Table 13 – Bad FCS primitives and parameters . 39
Table 14 – Current moderator primitives and parameters . 40
Table 15 – Enable moderator primitives and parameters . 40
Table 16 – Power-up and online primitives and parameters . 41
Table 17 – Listen-only primitives and parameters . 42
Table 18 – DLMS time and time quality parameters . 43
Table 19 – Time distribution source quality . 44
– 4 – IEC 61158-3-2:2014+AMD1:2019 CSV
© IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 3-2: Data-link layer service definition –
Type 2 elements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between
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