SIST EN 61158-3-16:2008
Industrial communication networks - Fieldbus specifications - Part 3-16: Data-link layer service definition - Type 16 elements
Industrial communication networks - Fieldbus specifications - Part 3-16: Data-link layer service definition - Type 16 elements
This standard provides common elements for basic time-critical messaging communications between devices in an automation environment. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This standard defines in an abstract way the externally visible service provided by the Type 16 fieldbus data-link layer in terms of a) the primitive actions and events of the service; b) the parameters associated with each primitive action and event, and the form which they take; and c) the interrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to the Type 16 fieldbus application layer at the boundary between the application and datalink layers of the fieldbus reference model, and systems management at the boundary between the data-link layer and systems management of the fieldbus reference model.
Industrielle Kommunikationsnetze - Feldbusse - Teil 3-16: Dienstfestlegungen des Data Link Layer (Sicherungsschicht) - Typ 16-Elemente
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 3-16: Définition des services des couches de liaison de données - Eléments de type 16
La CEI 61158-3-16:2007 définit de manière abstraite les services visibles de l'extérieur fournis par la couche de liaison de données de bus de terrain Type 16 en termes:
- des actions et événements primitifs de service;
- des paramètres associés à chaque action primitive et événement primitif, et la forme qu'ils prennent;
- de l'interrelation entre ces actions et événements, et leurs séquences valides. Cette première édition et ses parties associées de la sous-série de la CEI 61158-3 annulent et remplacent la CEI 61158-3:2003. L'édition de cette partie constitue un ajout technique. La présente partie et ses parties associées Type 16 annulent et remplacent aussi la CEI 61491 publiée en 2002. Cette édition inclut les changements suivants:
- suppression du précédent bus de terrain de Type 6 et du réceptacle (placeholder) pour une couche de liaison de données de bus de terrain de Type 5 en raison d'un manque de pertinence commerciale;
- ajout de nouveaux types de bus de terrain;
- division de cette partie en plusieurs parties numérotées 3-1, 3-2, ...., 3-19. La présente version bilingue (2013-07) correspond à la version anglaise monolingue publiée en 2007-12.
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 3-16. del: Definicija opravil na nivoju podatkovnih povezav - Elementi tipa 16 (IEC 61158-3-16:2007)
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 3-16. del: Definicija opravil na nivoju podatkovnih povezav - Elementi tipa 16
(IEC 61158-3-16:2007)Industrielle Kommunikationsnetze - Feldbusse - Teil 3-16: Dienstfestlegungen des Data Link Layer (Sicherungsschicht) - Typ 16-ElementeRéseaux de communication industriels - Spécifications des bus de terrain - Partie 3-16: Définition des services des couches de liaison de données - Eléments de type 16Industrial communication networks - Fieldbus specifications - Part 3-16: Data-link layer service definition - Type 16 elements35.110OmreževanjeNetworking35.100.20Podatkovni povezovalni slojData link layer25.040.40Merjenje in krmiljenje industrijskih postopkovIndustrial process measurement and controlICS:Ta slovenski standard je istoveten z:EN 61158-3-16:2008SIST EN 61158-3-16:2008en,de01-junij-2008SIST EN 61158-3-16:2008SLOVENSKI
STANDARDSIST EN 61491:2001SIST EN 61158-3:20041DGRPHãþD
SIST EN 61158-3-16:2008
EUROPEAN STANDARD EN 61158-3-16 NORME EUROPÉENNE
EUROPÄISCHE NORM February 2008
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61158-3-16:2008 E
ICS 35.100.20; 25.040.40 Partially supersedes EN 61158-3:2004 and EN 61491:1998
English version
Industrial communication networks -
Fieldbus specifications -
Part 3-16: Data-link layer service definition -
Type 16 elements (IEC 61158-3-16:2007)
Réseaux de communication industriels -
Spécifications des bus de terrain -
Partie 3-16: Définition des services
des couches de liaison de données -
Eléments de type 16 (CEI 61158-3-16:2007)
Industrielle Kommunikationsnetze -
Feldbusse -
Teil 3-16: Dienstfestlegungen des
Data Link Layer (Sicherungsschicht) -
Typ 16-Elemente (IEC 61158-3-16:2007)
This European Standard was approved by CENELEC on 2008-02-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 61158-3-16:2008
EN 61158-3-16:2008
- 2 -
Foreword The text of document 65C/473/FDIS, future edition 1 of IEC 61158-3-16, prepared by SC 65C, Industrial networks, of IEC TC 65, Industrial-process measurement, control and automation, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61158-3-16 on 2008-02-01. This and the other parts of the EN 61158-3 series supersede EN 61158-3:2004. Together with EN 61158-2:2008 and its companion parts for Type 16, it also partially replaces EN 61491:1998 which is at present being revised (to be issued as a Technical Report). With respect to EN 61158-3:2004 the following changes were made: – deletion of Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; – addition of new fieldbus types; – partition into multiple parts numbered 3-1, 3-2, …, 3-19. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2008-11-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2011-02-01 NOTE
Use of some of the associated protocol types is restricted by their intellectual-property-right holders. In all cases, the commitment to limited release of intellectual-property-rights made by the holders of those rights permits a particular data-link layer protocol type to be used with physical layer and application layer protocols in type combinations as specified explicitly in the EN 61784 series. Use of the various protocol types in other combinations may require permission from their respective intellectual-property-right holders. Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61158-3-16:2007 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61158-2 NOTE
Harmonized as EN 61158-2:2008 (not modified). IEC 61158-4-16 NOTE
Harmonized as EN 61158-4-16:2008 (not modified). IEC 61158-5-16 NOTE
Harmonized as EN 61158-5-16:2008 (not modified). IEC 61158-6-16 NOTE
Harmonized as EN 61158-6-16:2008 (not modified). IEC 61784-1 NOTE
Harmonized as EN 61784-1:2008 (not modified). __________ SIST EN 61158-3-16:2008
- 3 - EN 61158-3-16:2008 Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
ISO/IEC 7498-1 -1) Information technology - Open Systems Interconnection - Basic Reference Model:
The Basic Model EN ISO/IEC 7498-1 19952)
ISO/IEC 7498-3 -1) Information technology - Open Systems Interconnection - Basic Reference Model: Naming and addressing - -
ISO/IEC 10731 -1) Information technology - Open Systems Interconnection - Basic reference model - Conventions for the definition of OSI services - -
1) Undated reference. 2) Valid edition at date of issue. SIST EN 61158-3-16:2008
SIST EN 61158-3-16:2008
IEC 61158-3-16Edition 1.0 2007-12INTERNATIONAL STANDARD
Industrial communication networks – Fieldbus specifications –
Part 3-16: Data-link layer service definition – Type 16 elements
INTERNATIONAL ELECTROTECHNICAL COMMISSION TICS 35.100.20; 25.040.40 PRICE CODEISBN 2-8318-9419-0SIST EN 61158-3-16:2008
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CONTENTS 0HFOREWORD.21H3 1HINTRODUCTION.22H5 2H1 Scope.23H6 3H1.1 Overview.24H6 4H1.2 Specifications.25H6 5H1.3 Conformance.26H6 6H2 Normative references.27H7 7H3 Terms, definitions, symbols, abbreviations and conventions.28H7 8H3.1 Reference model terms and definitions.29H7 9H3.2 Service convention terms and definitions.30H8 10H3.3 Data-link service terms and definitions.31H9 11H3.4 Symbols and abbreviations.32H12 12H3.5 Common conventions.33H13 13H4 Data-link services and concepts.34H14 14H4.1 Overview.35H14 15H4.2 Service channel services (SVC services).36H16 16H4.3 Realtime channel setup services (RTCS services).37H18 17H4.4 RTC services.38H20 18H4.5 File transmission services.39H23 19HBibliography.40H25
Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses.41H10
Table 1 – Summary of DL services and primitives.42H16 Table 2 – Read (RD).43H17 Table 3 – Write (WR).44H18 Table 4 – Initiate_cyclic_communication (ICC).45H19 Table 5 – Disable_cyclic_communication (DCC).46H20 Table 6 – Notify_Error (NER).47H20 Table 7 – Write_cyclic (WRC).48H21 Table 8 – Get_Device_Status (GDS).49H21 Table 9 – Write_Device_Status (SDS).50H22 Table 10 – Notify_Network_Status_Change (NNSC).51H23 Table 11 – File download (FD).52H23 Table 12 – File upload (FU).53H24
SIST EN 61158-3-16:2008
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INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________ INDUSTRIAL COMMUNICATION NETWORKS – FIELDBUS SPECIFICATIONS –
Part 3-16: Data-link layer service definition – Type 16 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 the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. NOTE
Use of some of the associated protocol types is restricted by their intellectual-property-right holders. In all cases, the commitment to limited release of intellectual-property-rights made by the holders of those rights permits a particular data-link layer protocol type to be used with physical layer and application layer protocols in type combinations as specified explicitly in the IEC 61784 series. Use of the various protocol types in other combinations may require permission of their respective intellectual-property-right holders. International Standard IEC 61158-3-16 has been prepared by subcommittee 65C: Industrial networks, of IEC technical committee 65: Industrial-process measurement, control and automation. This first edition and its companion parts of the IEC 61158-3 subseries cancel and replace IEC 61158-3:2003. This edition of this part constitutes a technical addition. This publication, together with its companion parts for Type 16, also partially replaces IEC 61491:2002 which is at present being revised. IEC 61491 will be issued as a technical report. This edition includes the following significant changes with respect to the previous edition: a) deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; b) addition of new types of fieldbuses; c) division of this part into multiple parts numbered 3-1, 3-2, …, 3-19. SIST EN 61158-3-16:2008
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The text of this standard is based on the following documents: FDIS Report on voting 65C/473/FDIS 65C/484/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under 20Hhttp://webstore.iec.ch in the data related to the specific publication. At this date, the publication will be: • reconfirmed; • withdrawn; • replaced by a revised edition, or • amended. NOTE
The revision of this standard will be synchronized with the other parts of the IEC 61158 series. The list of all the parts of the IEC 61158 series, under the general title Industrial communication networks – Fieldbus specifications, can be found on the IEC web site. SIST EN 61158-3-16:2008
61158-3-16 © IEC:2007(E) – 5 –
INTRODUCTION This part of IEC 61158 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the “three-layer” fieldbus reference model described in IEC/TR 61158-1. Throughout the set of fieldbus standards, the term “service” refers to the abstract capability provided by one layer of the OSI Basic Reference Model to the layer immediately above. Thus, the data-link layer service defined in this standard is a conceptual architectural service, independent of administrative and implementation divisions. SIST EN 61158-3-16:2008
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INDUSTRIAL COMMUNICATION NETWORKS – FIELDBUS SPECIFICATIONS –
Part 3-16: Data-link layer service definition – Type 16 elements
1 Scope 1.1 Overview This standard provides common elements for basic time-critical messaging communications between devices in an automation environment. The term “time-critical” is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This standard defines in an abstract way the externally visible service provided by the Type 16 fieldbus data-link layer in terms of a) the primitive actions and events of the service; b) the parameters associated with each primitive action and event, and the form which they take; and c) the interrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to • the Type 16 fieldbus application layer at the boundary between the application and data-link layers of the fieldbus reference model, and • systems management at the boundary between the data-link layer and systems management of the fieldbus reference model. 1.2 Specifications The principal objective of this standard is to specify the characteristics of conceptual data-link layer services suitable for time-critical communications, and thus supplement the OSI Basic Reference Model in guiding the development of data-link protocols for time-critical communications. A secondary objective is to provide migration paths from previously-existing industrial communications protocols. This specification may be used as the basis for formal DL-Programming-Interfaces. Nevertheless, it is not a formal programming interface, and any such interface will need to address implementation issues not covered by this specification, including a) the sizes and octet ordering of various multi-octet service parameters, and b) the correlation of paired request and confirm, or indication and response, primitives. 1.3 Conformance This standard does not specify individual implementations or products, nor do they constrain the implementations of data-link entities within industrial automation systems. There is no conformance of equipment to this data-link layer service definition standard. Instead, conformance is achieved through implementation of the corresponding data-link protocol that fulfills the Type 16 data-link layer services defined in this standard. SIST EN 61158-3-16:2008
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2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 7498-1, Information technology – Open Systems Interconnection – Basic Reference Model: The Basic Model ISO/IEC 7498-3, Information technology – Open Systems Interconnection – Basic Reference Model: Naming and addressing ISO/IEC 10731, Information technology – Open Systems Interconnection – Basic Reference Model – Conventions for the definition of OSI services 3 Terms, definitions, symbols, abbreviations and conventions For the purposes of this document, the following terms, definitions, symbols, abbreviations and conventions apply. 3.1 Reference model terms and definitions This standard is based in part on the concepts developed in ISO/IEC 7498-1 and ISO/IEC 7498-3, and makes use of the following terms defined therein: 3.1.1 DL-address [7498-3]3.1.2 DL-address-mapping [7498-1]3.1.3 called-DL-address [7498-3]3.1.4 calling-DL-address [7498-3]3.1.5 centralized multi-end-point-connection [7498-1]3.1.6 DL-connection [7498-1]3.1.7 DL-connection-end-point [7498-1]3.1.8 DL-connection-end-point-identifier [7498-1]3.1.9 DL-connection-mode transmission [7498-1]3.1.10 DL-connectionless-mode transmission [7498-1]3.1.11 correspondent (N)-entities
correspondent DL-entities
(N=2)
correspondent Ph-entities
(N=1) [7498-1]3.1.12 DL-duplex-transmission [7498-1]3.1.13 (N)-entity DL-entity
(N=2) Ph-entity
(N=1) [7498-1]3.1.14 DL-facility [7498-1]3.1.15 flow control [7498-1]SIST EN 61158-3-16:2008
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3.1.16 (N)-layer
DL-layer
(N=2)
Ph-layer
(N=1) [7498-1]3.1.17 layer-management [7498-1]3.1.18 DL-local-view [7498-3]3.1.19 DL-name [7498-3]3.1.20 naming-(addressing)-domain [7498-3]3.1.21 peer-entities [7498-1]3.1.22 primitive name [7498-3]3.1.23 DL-protocol [7498-1]3.1.24 DL-protocol-connection-identifier [7498-1]3.1.25 DL-protocol-data-unit [7498-1]3.1.26 DL-relay [7498-1]3.1.27 reset [7498-1]3.1.28 responding-DL-address [7498-3]3.1.29 routing [7498-1]3.1.30 segmenting [7498-1]3.1.31 (N)-service
DL-service
(N=2)
Ph-service
(N=1) [7498-1]3.1.32 (N)-service-access-point
DL-service-access-point
(N=2)
Ph-service-access-point
(N=1) [7498-1]3.1.33 DL-service-access-point-address [7498-3]3.1.34 DL-service-connection-identifier [7498-1]3.1.35 DL-service-data-unit [7498-1]3.1.36 DL-simplex-transmission [7498-1]3.1.37 DL-subsystem [7498-1]3.1.38 systems-management [7498-1]3.1.39 DL-user-data [7498-1]3.2 Service convention terms and definitions This standard also makes use of the following terms defined in ISO/IEC 10731 as they apply to the data-link layer: 3.2.1 acceptor 3.2.2 asymmetrical service SIST EN 61158-3-16:2008
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3.2.3 confirm (primitive);
requestor.deliver (primitive) 3.2.4 deliver (primitive) 3.2.5 DL-confirmed-facility 3.2.6 DL-facility 3.2.7 DL-local-view 3.2.8 DL-mandatory-facility 3.2.9 DL-non-confirmed-facility 3.2.10 DL-provider-initiated-facility 3.2.11 DL-provider-optional-facility 3.2.12 DL-service-primitive;
primitive 3.2.13 DL-service-provider 3.2.14 DL-service-user 3.2.15 DL-user-optional-facility 3.2.16 indication (primitive);
acceptor.deliver (primitive) 3.2.17 multi-peer 3.2.18 request (primitive);
requestor.submit (primitive) 3.2.19 requestor 3.2.20 response (primitive);
acceptor.submit (primitive) 3.2.21 submit (primitive) 3.2.22 symmetrical service 3.3 Data-link service terms and definitions 3.3.1
cycle time duration of a communication cycle 3.3.2
cyclic communication periodic exchange of telegrams 3.3.3
cyclic data part of a telegram, which does not change its meaning during cyclic operation of the network 3.3.4
cyclic operation operation in which devices in the communication network are addressed and queried one after the other at fixed, constant time intervals SIST EN 61158-3-16:2008
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3.3.5
device a slave in the communication network, (e.g., a power drive system as defined in the IEC 61800 standard family, I/O stations as defined in the IEC 61131 standard family) 3.3.6
device status four adjacent octets inside the acknowledge telegram containing status information for each device 3.3.7
DL-segment, link, local link single DL-subnetwork in which any of the connected DLEs may communicate directly, without any intervening DL-relaying, whenever all of those DLEs that are participating in an instance of communication are simultaneously attentive to the DL-subnetwork during the period(s) of attempted communication PhSAP PhSAP DL-entity DLS-user-entity DLS-user-entity DLSAP DLSAP DLSAP DLSAP-
addresses group DL-
address DLSAP-
address Ph-layer DL-layer DLS-users DLSAP-
address
NOTE 1
DLSAPs and PhSAPs are depicted as ovals spanning the boundary between two adjacent layers. NOTE 2
DL-addresses are depicted as designating small gaps (points of access) in the DLL portion of a DLSAP. NOTE 3
A single DL-entity may have multiple DLSAP-addresses and group DL-addresses associated with a single DLSAP. Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses 3.3.8
DLSAP distinctive point at which DL-services are provided by a single DL-entity to a single higher-layer entity NOTE
This definition, derived from ISO/IEC 7498-1, is repeated here to facilitate understanding of the critical distinction between DLSAPs and their DL-addresses. SIST EN 61158-3-16:2008
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3.3.9
DL(SAP)-address either an individual DLSAP-address, designating a single DLSAP of a single DLS-user, or a group DL-address potentially designating multiple DLSAPs, each of a single DLS-user NOTE
This terminology is chosen because ISO/IEC 7498-3 does not permit the use of the term DLSAP-address to designate more than a single DLSAP at a single DLS-user. 3.3.10
(individual) DLSAP-address DL-address that designates only one DLSAP within the extended link NOTE
A single DL-entity may have multiple DLSAP-addresses associated with a single DLSAP. 3.3.11
element part of IDNs – each IDN has 7 elements, whereas each one has a specific meaning (e.g., number, name, data) 3.3.12
extended link DL-subnetwork, consisting of the maximal set of links interconnected by DL-relays, sharing a single DL-name (DL-address) space, in which any of the connected DL-entities may communicate, one with another, either directly or with the assistance of one or more of those intervening DL-relay entities NOTE
An extended link may be composed of just a single link. 3.3.13
frame denigrated synonym for DLPDU 3.3.14
group DL-address DL-address that potentially designates more than one DLSAP within the extended link. A single DL-entity may have multiple group DL-addresses associated with a single DLSAP. A single DL-entity also may have a single group DL-address associated with more than one DLSAP 3.3.15
hot plug possibility to open the communication network and insert or remove slaves while the network is still in real-time operation 3.3.16
identification number (IDN) designation of operating data under which a data block is preserved with its attribute, name, unit, minimum and maximum input values, and the data 3.3.17
node single DL-entity as it appears on one local link 3.3.18
protocol convention about the data formats, time sequences, and error correction in the data exchange of communication systems 3.3.19
receiving DLS-user DL-service user that acts as a recipient of DL-user-data SIST EN 61158-3-16:2008
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NOTE
A DL-service user can be concurrently both a sending and receiving DLS-user. 3.3.20
sending DLS-user DL-service user that acts as a source of DL-user-data 3.3.21
service channel (SVC) non real-time transmission of information upon master request during RT channel 3.3.22
slave node, which is assigned the right to transmit by the master 3.3.23
station
node 3.3.24
telegram frame 3.3.25
topology physical network architecture with respect to the connection between the stations of the communication system 3.4 Symbols and abbreviations 3.4.1 DL- Data-link layer (as a prefix) 3.4.2 DLC DL-connection 3.4.3 DLCEP DL-connection-end-point 3.4.4 DLE DL-entity (the local active instance of the data-link layer) 3.4.5 DLL DL-layer 3.4.6 DLPCI DL-protocol-control-information 3.4.7 DLPDU DL-protocol-data-unit 3.4.8 DLM DL-management 3.4.9 DLME DL-management Entity (the local active instance of DL-management) 3.4.10 DLMS DL-management Service 3.4.11 DLS DL-service 3.4.12 DLSAP DL-service-access-point 3.4.13 DLSDU DL-service-data-unit 3.4.14 FIFO First-in first-out (queuing method) 3.4.15 IDN Identification Number 3.4.16 OSI Open systems interconnection SIST EN 61158-3-16:2008
61158-3-16 © IEC:2007(E) – 13 –
3.4.17 Ph- Physical layer (as a prefix) 3.4.18 PhE Ph-entity (the local active instance of the physical layer) 3.4.19 PhL Ph-layer 3.4.20 QoS Quality of service 3.4.21 RE Resource element 3.4.22 RTC Real-time channel 3.4.23 SI Sub Index 3.4.24 SVC Service channel
3.5 Common conventions This standard uses the descriptive conventions given in ISO/IEC 10731. The service model, service primitives, and time-sequence diagrams used are entirely abstract descriptions; they do not represent a specification for implementation. Service primitives, used to represent service user/service provider interactions (see ISO/IEC 10731), convey parameters that indicate information available in the user/provider interaction. This standard uses a tabular format to describe the component parameters of the DLS primitives. The parameters that apply to each group of DLS primitives are set out in tables throughout the remainder of this standard. Each table consists of up to six columns, containing the name of the service parameter, and a column each for thos
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