IEC 61784-2-17:2023

IEC 61784-2-17 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 2-17: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –
CPF 17
Réseaux industriels – Profils –
Partie 2-17: Profils de bus de terrain supplémentaires pour les réseaux en temps
réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 17

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IEC 61784-2-17 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 2-17: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 –

CPF 17
Réseaux industriels – Profils –

Partie 2-17: Profils de bus de terrain supplémentaires pour les réseaux en

temps réel fondés sur l’ISO/IEC/IEEE 8802-3 – CPF 17

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6906-0

– 2 – IEC 61784-2-17:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms and acronyms . 7
3.3 Symbols . 8
3.4 Conventions . 8
4 CPF 17 (RAPIEnet) – RTE communication profiles . 9
4.1 General overview . 9
4.2 CP 17/1 . 9
4.2.1 Physical layer . 9
4.2.2 Datalink layer . 9
4.2.3 Application layer . 10
4.2.4 Performance indicator selection . 11
Bibliography . 16

Table 1 – CPF 17 symbols . 8
Table 2 – CPF 17: Overview of profile sets . 9
Table 3 – CP 17/1: DLL service selection . 9
Table 4 – CP 17/1: DLL protocol selection . 10
Table 5 – CP 17/1: AL service selection . 10
Table 6 – CP 17/1: AL protocol selection . 10
Table 7 – CP 17/1: PI overview . 11
Table 8 – CP 17/1: PI dependency matrix . 11
Table 9 – Consistent set of PIs small size automation system . 15
Table 10 – Parameters for Calculation of Consistent set of PIs . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 2-17: Additional real-time fieldbus profiles
based on ISO/IEC/IEEE 8802-3 –
CPF 17
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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6) All users should ensure that they have the latest edition of this publication.
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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.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
Attention is drawn to the fact that the 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 layer
protocol type to be used with other layer protocols of the same type, or in other type
combinations explicitly authorized by their respective intellectual property right holders.
NOTE Combinations of protocol types are specified in the IEC 61784-1 series and the IEC 61784-2 series.
IEC 61784-2-17 has been prepared by subcommittee 65C: Industrial networks, of IEC
technical committee 65: Industrial-process measurement, control and automation. It is an
International Standard.
– 4 – IEC 61784-2-17:2023 © IEC 2023
This first edition, together with the other parts of the same series, cancels and replaces the
fourth edition of IEC 61784-2 published in 2019. This first edition constitutes a technical
revision.
This edition includes the following significant technical changes with respect to
IEC 61784-2:2019:
a) split of the original IEC 61784-2 into several subparts, one subpart for the material of a
generic nature, and one subpart for each Communication Profile Family specified in the
original document.
The text of this International Standard is based on the following documents:
Draft Report on voting
65C/1209/FDIS 65C/1237/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 61784-2 series, published under the general title
Industrial networks – Profiles – Part 2: Additional real-time fieldbus profiles based on
ISO/IEC/IEEE 8802-3, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
The IEC 61784-2 series provides additional Communication Profiles (CP) to the existing
Communication Profile Families (CPF) of the IEC 61784-1 series and additional CPFs with
one or more CPs. These profiles meet the industrial automation market objective of identifying
Real-Time Ethernet (RTE) communication networks coexisting with ISO/IEC/IEEE 8802-3 –
commonly known as Ethernet. These RTE communication networks use provisions of
ISO/IEC/IEEE 8802-3 for the lower communication stack layers and additionally provide more
predictable and reliable real-time data transfer and means for support of precise
synchronization of automation equipment.
More specifically, these profiles help to correctly state the compliance of RTE communication
networks with ISO/IEC/IEEE 8802-3, and to avoid the spreading of divergent implementations.
Adoption of Ethernet technology for industrial communication between controllers and even
for communication with field devices promotes the use of Internet technologies in the field
area. This availability would be unacceptable if it causes the loss of features required in the
field area for industrial communication automation networks, such as:
• real-time,
• synchronized actions between field devices like drives,
• efficient, frequent exchange of very small data records.
These new RTE profiles can take advantage of the improvements of Ethernet networks in
terms of transmission bandwidth and network span.
Another implicit but essential requirement is that the typical Ethernet communication
capabilities, as used in the office world, are fully retained, so that the software involved
remains applicable.
The market is in need of several network solutions, each with different performance
characteristics and functional capabilities, matching the diverse application requirements.
RTE performance indicators, whose values will be provided with RTE devices based on
communication profiles specified in the IEC 61784-2 series, enable the user to match network
devices with application-dependent performance requirements of an RTE network.

– 6 – IEC 61784-2-17:2023 © IEC 2023
INDUSTRIAL NETWORKS –
PROFILES –
Part 2-17: Additional real-time fieldbus profiles
based on ISO/IEC/IEEE 8802-3 –
CPF 17
1 Scope
This part of IEC 61784-2 defines Communication Profile Family 17 (CPF 17). CPF 17
specifies a Real-Time Ethernet (RTE) communication profile (CP) and related network
components based on the IEC 61158 series (Type 21), ISO/IEC/IEEE 8802-3 and other
standards.
For each RTE communication profile, this document also specifies the relevant RTE
performance indicators and the dependencies between these RTE performance indicators.
NOTE 1 All CPs are based on standards or draft standards or International Standards published by the IEC or on
standards or International Standards established by other standards bodies or open standards processes.
NOTE 2 The RTE communication profile uses ISO/IEC/IEEE 8802-3 communication networks and its related
network components and in some cases amend those standards to obtain RTE features.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements 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 All parts of the IEC 61158 series, as well as the IEC 61784-1 series and the IEC 61784-2 series, are
maintained simultaneously. Cross-references to these documents within the text therefore refer to the editions as
dated in this list of normative references.
IEC 61158 (all parts), Industrial communication networks – Fieldbus specifications
IEC 61158-3-21:2019, Industrial communication networks – Fieldbus specifications –
Part 3-21: Data-link layer service definition – Type 21 elements
IEC 61158-4-21:2023, Industrial communication networks – Fieldbus specifications –
Part 4-21: Data-link layer protocol specification – Type 21 elements
IEC 61158-5-21:2019, Industrial communication networks – Fieldbus specifications –
Part 5-21: Application layer service definition – Type 21 elements
IEC 61158-6-21:2019, Industrial communication networks – Fieldbus specifications –
Part 6-21: Application layer protocol specification – Type 21 elements
IEC 61784-2-0:2023, Industrial networks – Profiles – Part 2-0: Additional real-time fieldbus
profiles based on ISO/IEC/IEEE 8802-3 – General concepts and terminology
ISO/IEC/IEEE 8802-3, Telecommunications and exchange between information technology
systems – Requirements for local and metropolitan area networks – Part 3: Standard for
Ethernet
IEEE Std 802-2014, IEEE Standard for Local and Metropolitan Area Networks: Overview and
Architecture
IEEE Std 802.1AB-2016, IEEE Standard for Local and metropolitan area networks – Station
and Media Access Control Connectivity Discovery
IEEE Std 802.1AS-2020, IEEE Standard for Local and Metropolitan Area Networks – Timing
and Synchronization for Time-Sensitive Applications
IEEE Std 802.1Q-2018, IEEE Standard for Local and Metropolitan Area Networks – Bridges
and Bridged Networks
IETF RFC 768, J. Postel, User Datagram Protocol, August 1980, available at
https://www.rfc-editor.org/info/rfc768 [viewed 2022-02-18]
IETF RFC 791, J. Postel, Internet Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc791 [viewed 2022-02-18]
IETF RFC 792, J. Postel, Internet Control Message Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc792 [viewed 2022-02-18]
IETF RFC 793, J. Postel, Transmission Control Protocol, September 1981, available at
https://www.rfc-editor.org/info/rfc793 [viewed 2022-02-18]
3 Terms, definitions, abbreviated terms, acronyms, and conventions
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61784-2-0,
ISO/IEC/IEEE 8802-3, IEEE Std 802-2014, IEEE Std 802.1AB-2016, IEEE Std 802.1AS-2020
and IEEE Std 802.1Q-2018 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.2 Abbreviated terms and acronyms
For the purposes of this document, abbreviated terms and acronyms defined in IEC 61784-2-0
and the following apply.
CP Communication Profile [according to IEC 61784-1-0]
CPF Communication Profile Family [according to IEC 61784-1-0]
ICMP Internet Control Message Protocol (see IETF RFC 792)
IETF Internet Engineering Task Force
IP Internet Protocol (see IETF RFC 791)
LLDP Link Layer Discovery Protocol (see IEEE Std 802.1AB-2016)
n.a. Not applicable
Phy PHY Physical layer entity sublayer (see ISO/IEC/IEEE 8802-3)
PI Performance indicator
pps Packets per second
RSTP Rapid Spanning Tree Algorithm and Protocol (see IEEE Std 802.1Q-2018)

– 8 – IEC 61784-2-17:2023 © IEC 2023
TCP Transmission Control Protocol (see IETF RFC 793)
UDP User Datagram Protocol (see IETF RFC 768)
3.3 Symbols
For the purposes of this document, symbols defined in IEC 61784-2-0 and Table 1 apply.
NOTE Definitions of symbols in this Subclause 3.3 do not use the italic font, as they are already identified as
symbols.
Table 1 – CPF 17 symbols
Symbol Definition Unit
APDUsize Size of the application protocol data unit in octets octets
BW Non-RTE bandwidth, in % %
NRTE
LDR Link data rate in bit per seconds bps
LTC Total cable length in meter m
M Number packets in the port transmit queue of node i in front on of this packet –
N Number of nodes between sending and receiving end-stations –
NF Maximum number of frames allowed to be sent per second for one end station pps
E/S_MAX
NF Number of frames allowed to be sent per second for one RTE end station pps
RTE/S
Posize Size of the protocol overhead in octets octets
T Cable propagation delay time in microseconds µs
CPD
T Cable propagation delay in nanoseconds per meter (depending on the ns/m
CPD/M
characteristics of the selected cable)
T Delivery time in microseconds µs
DELAY
T Maximum delivery time in microseconds µs
DELAY_MAX
T Minimum delivery time in microseconds µs
DELAY_MIN
Throughput_R Throughput RTE octets/s
TE
Throughput_R Maximum throughput RTE octets/s
TE
MAX
T Node latency delay time in microseconds µs
NLD
T Node latency delay time of node i in microseconds µs
NLD_i
T Node propagation delay time in microseconds µs
NPD
T Node propagation delay time of node i in microseconds µs
NPD_i
T Packet transmit time in microseconds µs
PKT
T Packet transmit time of node i in microseconds µs
PKT_i
T Receiver stack traversal time including Phy and MAC in microseconds µs
RCV
T Sender stack traversal time including Phy and MAC in microseconds µs
SND
T Packet transmit time of packet j in microseconds in the port transmit queue of node µs
TX_PKT_ij
i in front on of this packet (depending on APDU size of node i)
T Packet transmit time of packet j in microseconds in the port transmit queue in front µs
TX_PKT_j
on of this packet (depending on APDU size of node i)

3.4 Conventions
For the purposes of this document, the conventions defined in IEC 61784-2-0 apply.

4 CPF 17 (RAPIEnet) – RTE communication profiles
4.1 General overview
Communication Profile Family 17 (CPF 17) defines one communication profile based on the
IEC 61158 series protocol Type 21. This profile corresponds to the communication system
commonly known as RAPIEnet.
• Profile 17/1 (RAPIEnet)
This profile is based on ISO/IEC/IEEE 8802-3 (Ethernet) MAC and physical layers and
selections of AL, and DLL services and protocol definitions from the IEC 61158 series
Type 21.
Table 2 shows the overview of RAPIEnet profile set.
Table 2 – CPF 17: Overview of profile sets
Layer Profile 17/1
Application IEC 61158-5-21, IEC 61158-6-21
Data-link IEC 61158-3-21, IEC 61158-4-21
Physical ISO/IEC/IEEE 8802-3
4.2 CP 17/1
4.2.1 Physical layer
The physical layer shall be according to ISO/IEC/IEEE 8802-3.
The data rate shall be at least 100 Mbit/s and full-duplex mode shall be used at least for one
port.
The auto negotiation and crossover function (see ISO/IEC/IEEE 8802-3) shall be used.
4.2.2 Datalink layer
4.2.2.1 DLL services selection
Table 3 specifies the DLL service selection within IEC 61158-3-21.
Table 3 – CP 17/1: DLL service selection
Clause Header Presence Constraints
1 Scope YES —
2 Normative references YES —
3 Terms, definitions, symbols, abbreviations and Partial If applicable
conventions
4 Data-link layer services and concepts YES —
5 Data-link management services YES —
6 MAC control service YES —
7 Ph-control service YES —
4.2.2.2 DLL protocol selection
Table 4 specifies the DLL protocol selection within IEC 61158-4-21.

– 10 – IEC 61784-2-17:2023 © IEC 2023
Table 4 – CP 17/1: DLL protocol selection
Clause Header Presence Constraints
Scope YES —
Normative references YES —
Terms, definitions, symbols and abbreviations Partial If applicable
Overview of the data-link protocol YES —
General structure and encoding YES —
DLPDU structure and procedure YES —
DLE elements of procedure YES —
Constants and error codes YES —

4.2.3 Application layer
4.2.3.1 AL service selection
Table 5 specifies the AL service selection within IEC 61158-5-21.
Table 5 – CP 17/1: AL service selection
Clause Header Presence Constraints
1 Scope YES —
2 Normative references YES —
3 Terms, definitions, symbols, abbreviations, and Partial If applicable
conventions
4 Concepts YES —
5 Data type ASE YES —
6 Communication model specification YES —

4.2.3.2 AL protocol selection
Table 6 specifies the AL protocol selection within IEC 61158-6-21.
Table 6 – CP 17/1: AL protocol selection
Clause Header Presence Constraints
1 Scope YES —
2 Normative references YES —
Terms, definitions, symbols, abbreviations, and
3 Partial If applicable
conventions
4 FAL syntax description YES —
5 Transfer Syntax YES —
6 FAL protocol state machines YES —
7 AP context state machine YES —
8 FAL service protocol machine YES —
9 AR protocol machine YES —
10 DLL mapping protocol machine YES —

4.2.4 Performance indicator selection
4.2.4.1 Performance indicator overview
Table 7 shows the performance indicators overview of CP 17/1.
Table 7 – CP 17/1: PI overview
Performance indicator Applicable Constraints
Delivery Time YES None
Number of end stations YES None
Basic network topology YES None
Not practically limited by the
Number of switches between end stations RAPIEnet nodes are 2-port switches
protocol
Throughput RTE YES None
Non-RTE bandwidth YES None
Time synchronization accuracy YES None
Non time-based synchronization accuracy NO None
Redundancy recovery time YES None

4.2.4.2 Performance indicator dependencies
4.2.4.2.1 Performance indicator dependency matrix
Table 8 shows the dependencies between performance indicators for CP 17/1.
Table 8 – CP 17/1: PI dependency matrix
Influencing PI
Dependent PI
Delivery time YES NO YES NO NO NO
Number of end
YES NO NO NO NO NO
stations
Basic network
NO NO NO NO NO YES
topology
Throughput RTE NO NO NO YES NO NO
Non-RTE bandwidth NO NO NO YES NO NO
Time synchronization
NO YES NO NO NO NO
accuracy
Redundancy recovery
NO YES YES YES NO NO
time
Delivery time
Number of end
stations
Basic network
topology
Throughput
RTE
Non-RTE
bandwidth
Time
synchronization
accuracy
Redundancy
recovery time
– 12 – IEC 61784-2-17:2023 © IEC 2023
4.2.4.2.2 Delivery time
The delivery time for communication between two RTE end stations can be calculated by
Formula (1).
N
T =TT+ +T + T +T
(1)
DELAY SND PKT CPD ∑ NLD _i RCV
i=0
where
T is the delivery time in microseconds;
DELAY
is the sender stack traversal time including Phy and MAC in microseconds;
T
SND
T is the packet transmit time in microseconds, see Formula (2);
PKT
T is the cable propagation delay time in microseconds, see Formula (3);
CPD
T is the node latency delay time of node i in microseconds, see Formula (4);
NLD_i
T is the receiver stack traversal time including Phy and MAC in microseconds;
RCV
N is the number of nodes between sending and receiving end-stations.
The packet transmit time T can be calculated by Formula (2).
PKT
(APDUsize+×POsize)8
T = (2)
PKT
LDR
where
T is the packet transmit time in microseconds;
PKT
APDUsize is the size of the application protocol data unit in octets;
LDR is the link data rate in bit per seconds;
POsize is the size of the protocol overhead in octets.
The cable propagation delay time T can be calculated by Formula (3).
CPD
TT × L
(3)
CPD CPD/M TC
where
T is the cable propagation delay time in microseconds;
CPD
T is the cable propagation delay in nanoseconds per meter (depending on the
CPD/M
characteristics of the selected cable);
L is the total cable length in meter.
TC
=
The node latency delay time T can be calculated by Formula (4).
NLD_i
M
T = TT++ T
NLD_i NPD_i PKT_i ∑ TX __PKT ij (4)
j=0
where
T is the node latency delay time of node i in microseconds;
NLD_i
T is the node propagation delay time of node i in microseconds;
NPD_i
T is the packet transmit time of node i in microseconds, see Formula (2);
PKT_i
T is the packet transmit time of packet j in microseconds in the port transmit queue
TX_PKT_ij
of node i in front on of this packet (depending on APDU size of node i), see
Formula (2);
M is the number of packets in the port transmit queue of node i in front on of this
packet.
4.2.4.2.3 Number of end stations
The maximum number of the end stations shall be 256.
4.2.4.2.4 Basic network topology
Basic network topology shall be a ring or a linear topology.
4.2.4.2.5 Redundancy recovery time
Redundancy recovery time of Media redundancy requires ring topology.
The traffic load in the ring shall be less than 90 %.
In case of copper media, the redundancy recovery time for communication between any two
end stations is less than 160 ms (100 Mbit/s), 10 ms (1 000 Mbit/s).
In case of fiber optic media, the redundancy recovery time for communication between any
two end stations is less than 8 ms (100 Mbit/s), 4 ms (1 000 Mbit/s).
4.2.4.2.6 Throughput RTE
Throughput RTE depends on the link data rate and protocol overhead. Throughput RTE for
one direction of a CP 17/1 link operating can be calculated on the basis of Formula (5).
Throughput_(RTE= APDUsize× NF≤ NF )
(5)
RTE/S E/S_MAX
where
APDUsize is the size of the application protocol data unit in octets;
NF is the number of frames allowed to be sent per second for one RTE end station;
RTE/S
NF is the maximum number of frames allowed to be sent per second for one end
E/S_MAX
station, see Formula (6).
– 14 – IEC 61784-2-17:2023 © IEC 2023
The maximum number of frames allowed to be sent per second for one end station NF
E/S_MAX
can be calculated by Formula (6).
LDR
NF = (6)
E/S_MAX
(APDUsize+×POsize)8
where
LDR is the link data rate in mega bit per seconds;
APDUsize is the size of the application protocol data unit in octets;
POsize is the size of the protocol overhead in octets.
4.2.4.2.7 Non-RTE bandwidth
The time not occupied by RTE communication can be used for non-RTE communication.
Non-RTE bandwidth can be calculated as shown below.
4.2.4.2.8 Relation between throughput RTE and non-RTE bandwidth
The total link bandwidth is limited by the end station throughput, which is the same as the end
station maximum packet rate. The total link bandwidth is therefore a sum of end station RTE
and non-RTE packet rates and can be calculated using Formula (7).
NF −NF
E/S_MAX RTE/S
BW ×100%
(7)
NRTE
NF
E/S_MAX
where
BW is the non-RTE bandwidth, in %.;
NRTE
NF is the maximum number of frames allowed to be sent per second for one end
E/S_MAX
station;
NF is the number of frames allowed to be sent per second for one RTE end station.
RTE/S
4.2.4.3 Consistent set of performance indicators
Parameters used for the calculation of Table 9 are shown in Table 10. All these parameters
are the result of the described scenario and the related calculations of performance indicators.
=
Table 9 – Consistent set of PIs small size automation system
Performance indicator Value Constraints
Delivery Time 110 µs to 4 100 µs Processing time is 10 µs, no
failure at 100 Mbit/s (full-duplex)
22 µs to 240 µs Processing time is 10 µs no
failure at 1 000 Mbit/s
(full-duplex)
Number of end stations 256 –
Number of switches between end stations 0 RAPIEnet nodes are 2-port
switches
Throughput RTE 100 Mbit/s (full-duplex)
0 octets/s to 5,55 × 10 octets/s
1 000 Mbit/s (full-duplex)
0 octets/s to 5,55 × 10 octets/s
Non-RTE bandwidth 0 % to 100 % —
Time synchronization accuracy < 10 µs —
Redundancy recovery time n.a. Linear topology
Ring topology (100BASE-TX)
< 160 ms
Ring topology (100BASE-FX)
< 8 ms
Ring topology (1000BASE-TX)
< 10 ms
Ring topology (1000BASE-FX)
< 4 ms
Table 10 – Parameters for Calculation of Consistent set of PIs
Parameter Definition Value
T Sender stack traversal time including Phy and MAC Depends on the selected hardware
SND
platform and the embedded software
implementation
T Receiver stack traversal time including Phy and MAC Depends on the selected hardware
RCV
platform and the embedded software
implementation
APDUsize Size of the application protocol data 32 octets
LDR Link Data Rate 100 Mbit/s
1 000 Mbit/s
POsize Size of the protocol overhead 40 octets
T Cable propagation delay (depending on the 5 ns/m
CPD/M
characteristics of the selected cable)
L Total cable length 100 m
TC
T Node propagation delay time 10 µs 100 Mbit/s
NPD
0,5 µs 1 000 Mbit/s
Number of nodes between sending and receiving end-
N Minimum: 0
stations
Maximum: 254
– 16 – IEC 61784-2-17:2023 © IEC 2023
Bibliography
IEC 61158-1, Industrial communication networks – Fieldbus specifications – Part 1: Overview
and guidance for the IEC 61158 and IEC 61784 series
IEC 61158-2, Industrial communication networks – Fieldbus specifications – Part 2: Physical
layer specification and service definition
IEC 61784-1 (all parts), Industrial networks – Profiles – Part 1: Fieldbus profiles
IEC 61784-1-0, Industrial networks – Profiles – Part 1-0: Fieldbus profiles – General concepts
and terminology
IEC 61784-2 (all parts), Industrial networks – Profiles – Part 2: Additional real-time fieldbus
profiles based on ISO/IEC/IEEE 8802-3
IEC 61918, Industrial communication networks – Installation of communication networks in
industrial premises
ISO/IEC 7498-1, Information technology – Open Systems Interconnection –
Basic Reference Model: The Basic Model
ISO/IEC 9646 (all parts), Information technology – Open Systems Interconnection –
Conformance testing methodology and framework
ISO/IEC TR 10000-1:1998, Information technology – Framework and taxonomy of
International Standardized Profiles – Part 1: General principles and documentation framework
ISO/IEC 11801-1:2017, Information technology – Generic cabling for customer premises –
Part 1: General requirements
___________
– 18 – IEC 61784-2-17:2023 © IEC 2023
SOMMAIRE
AVANT-PROPOS . 19
INTRODUCTION . 21
1 Domaine d’application . 22
2 Références normatives . 22
3 Termes, définitions, abréviations, acronymes et conventions . 23
3.1 Termes et définitions . 23
3.2 Abréviations et acronymes . 23
3.3 Symboles . 24
3.4 Conventions . 25
4 CPF 17 (RAPIEnet) – Profils de communication RTE . 25
4.1 Présentation générale . 25
4.2 CP 17/1 . 25
4.2.1 Couche physique . 25
4.2.2 Couche liaison de données . 26
4.2.3 Couche application . 26
4.2.4 Sélection des indicateurs de performance. 27
Bibliographie . 33

Tableau 1 – Symboles applicables à la CPF 17 . 24
Tableau 2 – CPF 17: présentation de l’ensemble de profils . 25
Tableau 3 – CP 17/1: sélection des services DLL. 26
Tableau 4 – CP 17/1: sélection du protocole DLL . 26
Tableau 5 – CP 17/1: sélection des services AL . 26
Tableau 6 – CP 17/1: sélection du protocole AL . 27
Tableau 7 – CP 17/1: vue d’ensemble des indicateurs de performance . 27
Tableau 8 – CP 17/1: matrice de dépendance entre les indicateurs de performance . 28
Tableau 9 – Ensemble cohérent d’indicateurs de performance d’un système
d’automatisation de petite taille . 31
Tableau 10 – Paramètres de calcul de l’ensemble cohérent d’indicateurs de
performance . 32

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
RÉSEAUX INDUSTRIELS –
PROFILS –
Partie 2-17: Profils de bus de terrain supplémentaires pour les réseaux
en temps réel fondés sur l’ISO/IEC/IEEE 8802-3 –
CPF 17
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