IEC 61784-1-3:2023

IEC 61784-1-3 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –
Part 1-3: Fieldbus profiles – Communication Profile Family 3

Réseaux industriels – Profils –
Partie 1-3: Profils de bus de terrain – Famille de profils de communication 3

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IEC 61784-1-3 ®
Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial networks – Profiles –

Part 1-3: Fieldbus profiles – Communication Profile Family 3

Réseaux industriels – Profils –

Partie 1-3: Profils de bus de terrain – Famille de profils de communication 3

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 35.100.20; 35.240.50 ISBN 978-2-8322-6587-1

– 2 – IEC 61784-1-3:2023 © IEC 2023
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, abbreviated terms, symbols, and conventions . 10
3.1 Terms and definitions . 10
3.2 Abbreviations and symbols . 10
3.2.1 Common abbreviations and symbols . 10
3.2.2 Other abbreviations and symbols . 10
3.3 Conventions . 10
4 CPF 3 (PROFIBUS & PROFINET) . 11
4.1 General overview . 11
4.2 CP 3/1 (PROFIBUS DP) . 12
4.2.1 Physical layer . 12
4.2.2 Data-link layer . 14
4.2.3 Application layer . 39
4.3 CP 3/2 (PROFIBUS PA) . 95
4.3.1 Physical layer . 95
4.3.2 Data-link layer . 99
4.3.3 Application layer . 111
Annex A (informative) CPF 3 (PROFIBUS & PROFINET) communication concepts . 112
A.1 Basic characteristics . 112
A.1.1 General . 112
A.1.2 PROFIBUS DP . 112
A.2 Physical layer profiles . 113
A.3 Communication feature list (GSD) . 113
Bibliography . 115

Figure 1 – CP 3/2 Slave devices usable in applications . 12

Table 1 – CPF 3: overview of profile sets . 11
Table 2 – CP 3/1: PhL selection . 12
Table 3 – CP 3/1: PhL selection of Clause 3 . 14
Table 4 – CP 3/1: PhL selection of Clause 4 . 14
Table 5 – CP 3/1: General DLL service selection . 15
Table 6 – CP 3/1: DLL service selection for DP-V0 master (class 1) . 16
Table 7 – CP 3/1: DLM service selection for DP-V0 master (class 1) . 17
Table 8 – CP 3/1: DLL service selection for DP-V1 master (class 1) . 18
Table 9 – CP 3/1: DLM service selection for DP-V1 master (class 1) . 19
Table 10 – CP 3/1: DLL service selection for DP-V0 master (class 2). 19
Table 11 – CP 3/1: DLL service selection for DP-V1 master (class 2). 20
Table 12 – CP 3/1: DLL service selection for DP-V0 slave . 22
Table 13 – CP 3/1: DLM service selection for DP-V0 slave . 23
Table 14 – CP 3/1: DLL service selection for DP-V1 slave . 24

Table 15 – CP 3/1: DLM service selection for DP-V1 slave . 25
Table 16 – CP 3/1: General DLL protocol selection . 26
Table 17 – CP 3/1: DLL protocol selection of Clause 5 . 26
Table 18 – CP 3/1: DLL protocol selection of Clause 6 . 27
Table 19 – CP 3/1: DLL protocol selection of Clause 7 . 27
Table 20 – CP 3/1: Time variable selection for DP-V0 master (class 1) . 28
Table 21 – CP 3/1: Timer and counter selection for DP-V0 master (class 1) . 29
Table 22 – CP 3/1: DLPDU selection for DP-V0 master (class 1) . 29
Table 23 – CP 3/1: MAC state selection for DP-V0 master (class 1) . 30
Table 24 – CP 3/1: Time selection for DP-V1 master (class 1) . 31
Table 25 – CP 3/1: Timer and counter selection for DP-V1 master (class 1) . 32
Table 26 – CP 3/1: DLPDU selection for DP-V1 master (class 1) . 32
Table 27 – CP 3/1: MAC state selection for DP-V1 master (class 1) . 33
Table 28 – CP 3/1: CS protocol selection for DP-V1 master (class 1) . 33
Table 29 – CP 3/1: Time selection for DP-V1 master (class 2) . 34
Table 30 – CP 3/1: Timer and counter selection for DP-V1 master (class 2) . 34
Table 31 – CP 3/1: DLPDU selection for DP-V1 master (class 2) . 35
Table 32 – CP 3/1: Time selection for DP-V0 slave . 35
Table 33 – CP 3/1: Timer and counter selection for DP-V0 slave . 36
Table 34 – CP 3/1: DLPDU selection for DP-V0 slave . 36
Table 35 – CP 3/1: MAC state selection for DP-V0 slave . 37
Table 36 – CP 3/1: Time selection for DP-V1 slave . 37
Table 37 – CP 3/1: Timer and counter selection for DP-V1 slave . 38
Table 38 – CP 3/1: DLPDU selection for DP-V1 slave . 38
Table 39 – CP 3/1: CS protocol selection for DP-V1 slave . 39
Table 40 – CP 3/1, 3/2: AL service selection . 39
Table 41 – CP 3/1, 3/2: AL service selection of Clause 6 . 40
Table 42 – CP 3/1, 3/2: AL service selection of I/O data ASE . 40
Table 43 – CP 3/1, 3/2: AL service selection of Diagnosis ASE . 41
Table 44 – CP 3/1, 3/2: AL service selection of Context ASE . 41
Table 45 – CP 3/1, 3/2: AL service selection of Management ASE . 42
Table 46 – CP 3/1, 3/2: AL service selection of AR ASE . 43
Table 47 – CP 3/1, 3/2: AL service selection of Clause 6 . 44
Table 48 – CP 3/1, 3/2: AL service selection of Process data ASE . 44
Table 49 – CP 3/1, 3/2: AL service selection of I/O data ASE . 45
Table 50 – CP 3/1, 3/2: AL service selection of Alarm ASE . 45
Table 51 – CP 3/1, 3/2: AL service selection of Context ASE . 45
Table 52 – CP 3/1, 3/2: AL service selection of Load region ASE . 46
Table 53 – CP 3/1, 3/2: AL service selection of Function invocation ASE . 46
Table 54 – CP 3/1, 3/2: AL service selection of Time ASE . 46
Table 55 – CP 3/1, 3/2: AL service selection of AR ASE . 47
Table 56 – CP 3/1, 3/2: AL service selection of Clause 6 . 48
Table 57 – CP 3/1, 3/2: AL service selection of I/O data ASE . 48

– 4 – IEC 61784-1-3:2023 © IEC 2023
Table 58 – CP 3/1, 3/2: AL service selection of Diagnosis ASE . 49
Table 59 – CP 3/1, 3/2: AL service selection of Context ASE . 49
Table 60 – CP 3/1, 3/2: AL service selection of Management ASE . 49
Table 61 – CP 3/1, 3/2: AL service selection of AR ASE . 50
Table 62 – CP 3/1, 3/2: AL service selection of Clause 6 . 51
Table 63 – CP 3/1, 3/2: AL service selection of Process data ASE . 51
Table 64 – CP 3/1, 3/2: AL service selection of Context ASE . 52
Table 65 – CP 3/1, 3/2: AL service selection of Load region ASE . 52
Table 66 – CP 3/1, 3/2: AL service selection of Function invocation ASE . 53
Table 67 – CP 3/1, 3/2: AL service selection of Time ASE . 53
Table 68 – CP 3/1, 3/2: AL service selection of AR ASE . 54
Table 69 – CP 3/1, 3/2: AL service selection of Clause 6 . 55
Table 70 – CP 3/1, 3/2: AL service selection of I/O data ASE . 56
Table 71 – CP 3/1, 3/2: AL service selection of Diagnosis ASE . 57
Table 72 – CP 3/1, 3/2: AL service selection of Context ASE . 58
Table 73 – CP 3/1, 3/2: AL service selection of AR ASE . 59
Table 74 – CP 3/1, 3/2: AL service selection of Clause 6 . 60
Table 75 – CP 3/1, 3/2: AL service selection of Process data ASE . 60
Table 76 – CP 3/1, 3/2: AL service selection of I/O data ASE . 61
Table 77 – CP 3/1, 3/2: AL service selection of diagnosis ASE . 61
Table 78 – CP 3/1, 3/2: AL service selection of Alarm ASE . 62
Table 79 – CP 3/1, 3/2: AL service selection of Context ASE . 62
Table 80 – CP 3/1, 3/2: AL service selection of Load region ASE . 63
Table 81 – CP 3/1, 3/2: AL service selection of Function invocation ASE . 63
Table 82 – CP 3/1, 3/2: AL service selection of Time ASE . 63
Table 83 – CP 3/1, 3/2: AL service selection of AR ASE . 64
Table 84 – CP 3/1, 3/2: AL protocol selection . 65
Table 85 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 11 . 65
Table 86 – CP 3/1, 3/2: AL protocol selection of APDUs . 67
Table 87 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives . 68
Table 88 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 69
Table 89 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 11 . 69
Table 90 – CP 3/1, 3/2: AL protocol selection of APDUs . 71
Table 91 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives . 72
Table 92 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 74
Table 93 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 6 . 74
Table 94 – CP 3/1, 3/2: AL protocol selection of APDUs . 76
Table 95 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives . 77
Table 96 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 77
Table 97 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 11 . 78
Table 98 – CP 3/1, 3/2: AL protocol selection of APDUs . 80
Table 99 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives . 82
Table 100 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 83

Table 101 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 11 . 83
Table 102 – CP 3/1, 3/2: AL protocol selection of APDU selection . 85
Table 103 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives. 86
Table 104 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 87
Table 105 – CP 3/1, 3/2: AL protocol selection of Clause 4 to 11 . 87
Table 106 – CP 3/1, 3/2: AL protocol selection of APDUs . 89
Table 107 – CP 3/1, 3/2: AL protocol selection of FSPM services primitives. 91
Table 108 – CP 3/1, 3/2: AL protocol selection of DMPM services primitives . 93
Table 109 – CP 3/2: PhL selection . 95
Table 110 – CP 3/2: PhL selection of Clause 12 for devices and their MAUs . 97
Table 111 – CP 3/2: PhL selection of recommended IS parameters . 98
Table 112 – CP 3/2: PhL selection of Clause 21 for devices and their MAUs . 98
Table 113 – CP 3/2: General DLL protocol selection . 100
Table 114 – CP 3/2: DLL protocol selection of Clause 4 . 100
Table 115 – CP 3/2: DLL protocol selection of Clause 5 . 101
Table 116 – CP 3/2: DLL protocol selection of Clause 6 . 101
Table 117 – CP 3/2: DLL protocol selection of Clause 7 . 102
Table 118 – CP 3/2: Time variable selection for DP-V0 master (class 1) . 103
Table 119 – CP 3/2: Timer and counter selection for DP-V0 master (class 1) . 103
Table 120 – CP 3/2: DLPDU selection for DP-V0 master (class 1) . 104
Table 121 – CP 3/2: Time variable selection for DP-V1 master (class 1) . 105
Table 122 – CP 3/2: Timer and counter selection for DP-V1 master (class 1) . 106
Table 123 – CP 3/2: DLPDU selection for DP-V1 master (class 1) . 106
Table 124 – CP 3/2: Time variable selection for DP-V1 master (class 2) . 107
Table 125 – CP 3/2: Timer and counter selection for DP-V1 master (class 2) . 108
Table 126 – CP 3/2: DLPDU selection for DP-V1 master (class 2) . 108
Table 127 – CP 3/2: Time variable selection for DP-V0 slave . 109
Table 128 – CP 3/2: Timer and counter selection for DP-V0 slave . 109
Table 129 – CP 3/2: DLPDU selection for DP-V0 slave . 110
Table 130 – CP 3/2: Time variable selection for DP-V1 slave . 110
Table 131 – CP 3/2: Timer and counter selection for DP-V1 slave . 111
Table 132 – CP 3/2: DLPDU selection for DP-V1 slave . 111

– 6 – IEC 61784-1-3:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL NETWORKS –
PROFILES –
Part 1-3: Fieldbus profiles –
Communication Profile Family 3

FOREWORD
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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
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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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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.
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 61784-1-3 has been prepared by subcommittee 65C: Industrial networks, of IEC technical
committee 65: Industrial-process measurement, control and automation. It is an International
Standard.
This first edition, together with the other parts of the same series, cancels and replaces the fifth
edition of IEC 61784-1 published in 2019. This first edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to
IEC 61784-1:2019:
a) split of the original IEC 61784-1 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/1207/FDIS 65C/1236/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 61784-1 series, published under the general title Industrial networks
– Profiles – Part 1: Fieldbus profiles, 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.
– 8 – IEC 61784-1-3:2023 © IEC 2023
INTRODUCTION
The IEC 61784-1 series provides a set of Communication Profiles (CP) in the sense of
ISO/IEC TR 10000-1. These answer the need of identifying the protocol families co-existing
within the IEC 61158 series, as a result of the international harmonization of fieldbus
technologies available on the market. More specifically, these profiles help to correctly state
the compliance with the IEC 61158 series, and to avoid the spreading of divergent
implementations, which would limit its use, clearness and understanding. Additional profiles to
address specific market concerns, such as functional safety or information security, can be
addressed by future parts of the IEC 61784-1 series.
The IEC 61784-1 series contains several Communication Profile Families (CPF), which specify
one or more communication profiles. Such profiles identify, in a strict sense, protocol subsets
of the IEC 61158 series via protocol specific communication profiles. They do not define device
profiles that specify communication profiles together with application functions needed to
answer the need of a specific application ("application profiles").
It is agreed that these latter classes of profiles would facilitate the use of the IEC 61158 series
of standards; the profiles defined in the IEC 61784-1 series are a necessary step to achieve
that task.
It is also important to clarify that interoperability – defined as the ability of two or more network
systems to exchange information and to make mutual use of the information that has been
exchanged (see ISO/IEC TR 10000-1) – can be directly achieved on the same link only for those
devices complying with the same communication profile.
Profiles contained in the IEC 61784-1 series are constructed of references to IEC 61158-2 and
the IEC 61158-3, IEC 61158-4, IEC 61158-5 and IEC 61158-6 series, and other IS, TS or
worldwide-accepted standards, as appropriate . Each profile is required to reference at least
one part of the IEC 61158 series in addition to IEC 61158-1.
Two or more Profiles, which are related to a common family, are specified within a
"Communication Profile Family" (CPF).

___________
International Standardised Profiles may contain normative references to specifications other than International
Standards; see ISO/IEC JTC 1 N 4047: The Normative Referencing of Specifications other than International
Standards in JTC 1 International Standardized Profiles – Guidelines for ISP Submitters.

INDUSTRIAL NETWORKS –
PROFILES –
Part 1-3: Fieldbus profiles –
Communication Profile Family 3

1 Scope
This part of IEC 61784-1 defines Communication Profile Family 3 (CPF 3). CPF 3 specifies a
set of protocol specific communication profiles (CPs) based on the IEC 61158 series (Type 3
and Type 10) and other standards, to be used in the design of devices involved in
communications in factory manufacturing and process control.
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 Some CPs of CPF 3 are specified in IEC 61784-2-3.
Each CP selects an appropriate consistent and compatible subset of services and protocols
from the relevant set that is defined and modelled in the IEC 61158 series. For the selected
subset of services and protocols, the profile also describes any possible or necessary
constraints in parameter values.
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 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-25, Explosive atmospheres – Part 25: Intrinsically safe electrical systems
IEC 61010 (all parts), Safety requirements for electrical equipment for measurement, control
and laboratory use
IEC 61131-2, Industrial-process measurement and control − Programmable controllers – Part 2:
Equipment requirements and tests
IEC 61158 (all parts), Industrial communication networks – Fieldbus specifications
IEC 61158-2:2023, Industrial communication networks – Fieldbus specifications – Part 2:
Physical layer specification and service definition
IEC 61158-3-3:2014, Industrial communication networks – Fieldbus specifications – Part 3-3:
Data-link layer service definition – Type 3 elements
IEC 61158-4-3:2019, Industrial communication networks – Fieldbus specifications – Part 4-3:
Data-link layer protocol specification – Type 3 elements

– 10 – IEC 61784-1-3:2023 © IEC 2023
IEC 61158-5-3:2014, Industrial communication networks – Fieldbus specifications – Part 5-3:
Application layer service definition – Type 3 elements
IEC 61158-6-3:2019, Industrial communication networks – Fieldbus specifications – Part 6-3:
Application layer protocol specification – Type 3 elements
IEC 61784-1-0:2023, Industrial networks – Profiles – Part 1-0: Fieldbus profiles – General
concepts and terminology
IEC 61784-2-3:2023, Industrial networks – Profiles – Part 2-3: Additional real-time fieldbus
profiles based on ISO/IEC/IEEE 8802-3 – CPF 3
ISO 15745-3:2003, Industrial automation systems and integration – Open systems application
integration framework – Part 3: Reference description for IEC 61158-based control systems
TIA-485-A:1998, Electrical Characteristics of Generators and Receivers for Use in Balanced
Digital Multipoint Systems
3 Terms, definitions, abbreviated terms, symbols, and conventions
3.1 Terms and definitions
For the purposes of this document, all terms and definitions provided in the IEC 61158 series
and IEC 61784-1-0 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 Abbreviations and symbols
3.2.1 Common abbreviations and symbols
For the purposes of this document, all abbreviations and symbols defined in the IEC 61158
series and IEC 61784-1-0 apply.
CP communication profile
CPF communication profile family
MAU medium attachment unit
3.2.2 Other abbreviations and symbols
CE "Conformité Européenne" (i.e., "European Conformity")
DP-V0 PROFIBUS DP version 0
DP-V1 PROFIBUS DP version 1
EMC electro-magnetic compatibility
IS intrinsically safe (as an adjective)
intrinsic safety (as a noun)
RS 485 MAU according to TIA-485-A
RS 485-IS MAU according to TIA-485-A and applicable to IS
3.3 Conventions
For the purposes of this document, the conventions defined in IEC 61784-1-0 apply.

4 CPF 3 (PROFIBUS & PROFINET )
4.1 General overview
Communication Profile Family 3 (CPF 3) defines communication profiles using Type 3 and
Type 10 of IEC 61158 series, which corresponds to parts of the communication systems
commonly known as PROFIBUS and PROFINET. CP 3/1 and CP 3/2 are specified in this
document. CP 3/4, CP3/5, and CP 3/6 are RTE specific PROFINET profiles and specified in
IEC 61784-2-3.
Table 1 gives an overview of the specified profile sets.
Table 1 – CPF 3: overview of profile sets
Layer Profile 3/1 Profile 3/2
Application IEC 61158-5-3, IEC 61158-6-3
Data-link IEC 61158-3-3, IEC 61158-3-3,
IEC 61158-4-3 IEC 61158-4-3
Asynchronous transmission Synchronous transmission
a a a a a
Physical
0 2 3 4 1
NOTE PROFIBUS uses Profile 3/1 and 3/2. PROFIBUS DP is the name of AL protocol and service part, which is
identical for CP 3/1 and CP 3/2 and uses the Type 3 DL parts.
a
These numbers are the CP identifier used within Communication Feature List (GSD) in keyword "Physical
Interface".
Coding: 0: RS 485 (TIA-485-A);optional RS 485-IS
1: Manchester coded and bus powered (MBP); optional IS (MBP-IS) and lower power (MBP-LP)
2: Plastic fiber;
3: Glass multi mode fiber or Glass single mode fiber;

4: PCF fiber.
NOTE 1 See Annex A for an overview of PROFIBUS communications concepts and definition of DP-V0, DP-V1 and
Options.
An implementation profile like temperature transmitter or master device shall select from CPF 3
these behaviors that are needed for a certain device type. The manufacturer of a device shall
describe the selection for CP 3/1 and CP 3/2 by writing a Communication Feature List (GSD)
according ISO 15745-3:2003, 6.2. The GSD is necessary to specify an implementation profile.
It is recommended to perform a conformance test, which is not normative but specified within
the consortium PROFIBUS International. Each CP 3/1 and CP 3/2 conformant device shall have
a type specific GSD, which is part of the conformance test.
The CPF3 specifies in this document two distinct profiles:
a) Profile 3/1
Profile 3/1 is a subset of IEC 61158 Type 3 services and protocols and uses the as physical
layer (PhL) four different media, see Table 1. A Communication Profile (CP) identifier
identifies these.
b) Profile 3/2
Profile 3/2 is a subset of IEC 61158 Type 3 services and protocols and uses the Manchester
coded bus powered (MBP) synchronous transmission of PhL specified in Type 3. Based on
___________
PROFIBUS and PROFINET are trademarks of PROFIBUS Nutzerorganisation e.V. (PNO). PNO is a non-profit
trade organization to support the fieldbus PROFIBUS. This information is given for the convenience of users of
this document and does not constitute an endorsement by IEC of the trademark holder or any of its products.
Compliance with this profile does not require use of the registered trademark. Use of the trademark PROFIBUS
and PROFINET requires permission of the trade name holder.

– 12 – IEC 61784-1-3:2023 © IEC 2023
different transmission technologies for PROFIBUS DP, the DLL contains different interfaces
to the PhL. That causes different communication profiles for PROFIBUS DP.
The MBP non-IS PhL is the basis for the extended specification for IS (MBP-IS) and low
power (MBP-LP) capability. MBP-LP supports IS. Slave devices with a MAU supporting
MBP-LP are also usable in systems that require MBP-IS or MBP. Slave devices with a MAU
supporting MBP-IS are also usable in a system that requires MBP. Figure 1 shows this
hierarchy.
Figure 1 – CP 3/2 Slave devices usable in applications
NOTE 2 Additional CPs are defined in IEC 61784-2-3.
NOTE 3 CP 3/3 has been withdrawn.
4.2 CP 3/1 (PROFIBUS DP)
4.2.1 Physical layer
4.2.1.1 PhL selection
Table 2 specifies the selection of IEC 61158-2 for devices of all types of this profile. 4.2.1.2
specifies additional considerations.
Table 2 – CP 3/1: PhL selection
Clause Header Presence Constraints
1 Scope YES —
2 Normative references Partial Relevant references only
3 Terms and definitions Partial See Table 3
4 Symbols and abbreviated terms Partial See Table 4
5 DLL – PhL interface — —
5.1 General YES —
5.2 – 5.3 — NO —
5.4 Type 3: Required services — —
5.4.1 Synchronous transmission NO —
5.4.2 Asynchronous transmission YES —
Next — NO —
subclauses
6 Systems management – PhL interface — —
6.1 General YES —
6.2 Type 1: Systems management – PhL interface NO —
6.3 Type 3: Systems management – PhL interface — —
6.3.1 Synchronous transmission NO —
6.3.2 Asynchronous transmission YES —
Next — NO —
subclauses
Clause Header Presence Constraints
7 DCE Independent sublayer (DIS) — —
7.1 General YES —
7.2 Type 1: DIS NO —
7.3 Type 3: DIS — —
7.3.1 Synchronous transmission NO —
7.3.2 Asynchronous transmission YES —
Next
— NO —
subclauses
8 DTE – DCE interface and MIS-specific functions — —
8.1 General YES —
8.2 Type 1: DTE – DCE interface NO —
8.3 Type 3: DTE – DCE interface — —
8.3.1 Synchronous transmission NO —
8.3.2 Asynchronous transmission YES —
Next — NO —
subclauses
9 Medium dependent sublayer (MDS) — —
9.1 General YES —
9.2 – 9.4 — NO —
9.5 Type 3: MDS: Wire and optical media — —
9.5.1 Synchronous Transmission NO —
9.5.2 Asynchronous Transmission YES —
Next — NO —
subclauses
10 MDS – MAU interface — —
10.1 General YES —
10.2 – 10.4 — NO —
10.5 Type 3: MDS – MAU interface: Wire and optical — —
media
10.5.1 Synchronous Transmission NO —
10.5.2 Asynchronous Transmission YES —
Next — NO —
subclauses
11 – 21 — NO —
22 Type 3: Medium Attachment Unit: Asynchronous — —
Transmission, wire medium
22.1 Medium Attachment Unit for non intrinsic Safety YES For RS 485
22.2 Medium Attachment Unit for intrinsic Safety YES For RS 485-IS
23 Type 3: Medium Attachment Unit: Asynchronous YES For Plastic, Glass and PCF
Transmission, optical medium fiber
Next clauses — NO —
Annex A – H — NO —
Annex I (normative) Type 3: Connector specification — —
I.1 Connector for synchronous transmission NO —
I.2 Connector for asynchronous transmission YES For RS 485
I.3 Connector for fiber optic cable YES For Plastic, Glass and PCF
fiber
– 14 – IEC 61784-1-3:2023 © IEC 2023
Clause Header Presence Constraints
Annex J (normative) Type 3: Redundancy of PhL and medium YES Redundancy is optional
Annex K (normative) Type 3: Optical network topology YES For Plastic, Glass and PCF
fiber
Annex L Reference design examples for asynchronous YES For RS 485-IS
transmission, wire medium, intrinsically safe
Next annexes — NO —
Table 3 – CP 3/1: PhL selection of Clause 3
Clause Header Presence Constraints
3.1 Common terms and definitions Par
...