IEC 61158-6-14:2014

IEC 61158-6-14 ®
Edition 3.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial communication networks – Fieldbus specifications –
Part 6-14: Application layer protocol specification – Type 14 elements

Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 6-14: Spécification du protocole de la couche application – Eléments
de type 14
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IEC 61158-6-14 ®
Edition 3.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial communication networks – Fieldbus specifications –

Part 6-14: Application layer protocol specification – Type 14 elements

Réseaux de communication industriels – Spécifications des bus de terrain –

Partie 6-14: Spécification du protocole de la couche application – Eléments

de type 14
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XD
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-1764-1

– 2 – IEC 61158-6-14:2014 © IEC 2014
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
1.1 General . 10
1.2 Specifications . 10
1.3 Conformance . 11
2 Normative references . 11
3 Terms, definitions, symbols, abbreviations and conventions . 12
3.1 Referenced terms and definitions . 12
3.2 Fieldbus application layer specific terms and definitions . 13
3.3 Abbreviations and symbols . 15
3.4 Conventions . 17
4 Abstract syntax . 18
4.1 Fixed format PDU description . 18
4.2 Object definitions in FAL management ASE . 27
4.3 Definition of objects used in Type 14 application access entity . 33
5 Transfer syntax . 36
5.1 Encoding of basic data types . 36
5.2 Encoding of Type 14 APDU header . 42
5.3 Encoding of FAL management entity service parameters . 43
5.4 Encoding of AAE Services . 49
6 Structure of FAL protocol state machines . 58
7 AP-Context state machine . 59
7.1 Primitives exchanged between ALU and ALE . 59
7.2 Protocol state machine descriptions . 59
7.3 State transitions . 60
7.4 Function descriptions . 66
8 FAL management state machines . 66
8.1 Primitives . 66
8.2 Protocol state machine descriptions . 67
8.3 State transitions . 68
8.4 Function descriptions . 70
9 Application access entity protocol machine . 74
9.1 Primitives . 74
9.2 AAE state machine . 76
9.3 Event ASE protocol machine . 78
9.4 Domain ASE protocol machine . 79
9.5 Block ASE protocol machine . 83
10 Application relationship state machine . 85
10.1 Primitives . 85
10.2 AREP state description . 87
10.3 State transitions . 87
10.4 Function descriptions . 88
11 DLL mapping protocol machine . 88
11.1 Concept . 88

11.2 Primitives . 89
11.3 State description . 89
11.4 State transitions . 89
11.5 Function description . 90
Bibliography . 91

Figure 1 – State transition diagram . 17
Figure 2 – Exchanged primitives of protocol state machine . 59
Figure 3 – ACE protocol state machine . 60
Figure 4 – FME protocol state machine . 68
Figure 5 – AAE state transition diagrams . 76
Figure 6 – Event ASE state transition diagrams . 78
Figure 7 – Domain ASE state transition diagram . 80
Figure 8 – Block ASE state transition diagrams . 84
Figure 9 – AREP state transition diagrams . 87
Figure 10 – ESME state transition . 90

Table 1 – State machine description elements . 17
Table 2 – Definition of Type 14 MOB header object . 27
Table 3 – Definition of Type 14 device descriptor object . 27
Table 4 – Definition of the time synchronization object . 28
Table 5 – Definition of maximum response time object . 28
Table 6 – Definition of the Type 14 communication scheduling management object . 29
Table 7 – Definition of the device application information object . 29
Table 8 – Definition of FB application information header. 29
Table 9 – Definition of domain application information header . 30
Table 10 – Definition of Type 14 link object header . 30
Table 11 – Definition of Type 14 FRT link object header . 31
Table 12 – Definition of FB application information object . 31
Table 13 – Definition of Type 14 link object . 31
Table 14 – Definition of Type 14 FRT link object . 32
Table 15 – Definition of domain application information object . 33
Table 16 – Definition of domain object . 33
Table 17 – Definition of simple variable object . 34
Table 18 – Definition of event object . 34
Table 19 – Definition of Type 14 socket mapping object . 35
Table 20 – Definition of Type 14 socket timer object . 35
Table 21 – Definition of ErrorType object . 36
Table 22 – Encoding of Boolean value TRUE . 36
Table 23 – Encoding of Boolean value FALSE . 36
Table 24 – Encoding of Unsigned8 data type . 37
Table 25 – Encoding of Unsigned16 data type . 37
Table 26 – Encoding of Unsigned32 data type . 37
Table 27 – Encoding of Unsigned64 data type . 37

– 4 – IEC 61158-6-14:2014 © IEC 2014
Table 28 – Encoding of Int8 data type . 38
Table 29 – Encoding of Int16 data type . 38
Table 30 – Encoding of Int32 data type . 38
Table 31 – Encoding of Int64 data type . 39
Table 32 – Encoding of Real type . 39
Table 33 – Encoding of VisibleString data type . 39
Table 34 – Encoding of OctetString data type . 40
Table 35 – Encoding of BitString data type . 40
Table 36 – Encoding of TimeOfDay data type . 40
Table 37 – Encoding of BinaryDate data type . 41
Table 38 – Encoding of PrecisionTimeDifference data type . 42
Table 39 – Encoding of Type 14 application layer service message header . 42
Table 40 – Encoding of EM_DetectingDevice request parameters . 43
Table 41 – Encoding of EM_OnlineReply request parameters . 43
Table 42 – Encoding of EM_GetDeviceAttribute request parameters . 44
Table 43 – Encoding of EM_GetDeviceAttribute positive response parameters . 44
Table 44 – Encoding of EM_GetDeviceAttribute negative response parameters . 45
Table 45 – Encoding of EM_ActiveNotification request parameters . 46
Table 46 – Encoding of EM_ConfiguringDevice request parameters. 47
Table 47 – Encoding of EM_ConfiguringDevice positive response parameters . 48
Table 48 – Encoding of EM_ConfiguringDevice negative response parameters . 48
Table 49 – Encoding of EM_SetDefaultValue request parameters . 48
Table 50 – Encoding of EM_SetDefaultValue positive response parameters . 48
Table 51 – Encoding of clear device attribute service refuse packet . 49
Table 52 – Encoding of DomainDownload request parameters . 49
Table 53 – Encoding of domain download service response packet . 49
Table 54 – Encoding of DomainDownload negative response parameters . 49
Table 55 – Encoding of DomainUpload request parameters . 50
Table 56 – Encoding of DomainUpload positive response parameters . 50
Table 57 – Encoding of DomainUpload negative response parameters . 50
Table 58 – Encoding of EventRoport request parameters . 51
Table 59 – Encoding of EventRoportAcknowledge request parameters . 51
Table 60 – Encoding of EventRoportAcknowledge positive response parameters . 51
Table 61 – Encoding of EventRoportAcknowledge negative response parameters . 51
Table 62 – Encoding of ReportConditionChanging request parameters . 52
Table 63 – Encoding of ReportConditionChanging positive response parameters . 52
Table 64 – Encoding of ReportConditionChanging negative response parameters . 52
Table 65 – Encoding of Read request parameters . 52
Table 66 – Encoding of Read positive response parameters . 53
Table 67 – Encoding of Read negative response parameters . 53
Table 68 – Encoding of Write request parameters . 53
Table 69 – Encoding of Write positive response parameters . 53
Table 70 – Encoding of Write negative response parameters . 54

Table 71 – Encoding of VariableDistribute request parameters . 54
Table 72 – Encoding of FRTRead request parameters . 54
Table 73 – Encoding of FRTRead positive response parameters . 54
Table 74 – Encoding of FRTRead negative response parameters . 55
Table 75 – Encoding of FRTWrite request parameters . 55
Table 76 – Encoding of FRTWrite positive response parameters . 55
Table 77 – Encoding of FRTWrite negative response parameters . 55
Table 78 – Encoding of FRTVariableDistribute request parameters . 56
Table 79 – Encoding of BlockTransmissionOpen request parameters . 56
Table 80 – Encoding of BlockTransmissionOpen positive response parameters . 56
Table 81 – Encoding of BlockTransmissionOpen negative response parameters . 56
Table 82 – Encoding of BlockTransmissionClose request parameters . 57
Table 83 – Encoding of BlockTransmissionClose positive response parameters . 57
Table 84 – Encoding of BlockTransmissionClose negative response parameters . 57
Table 85 – Encoding of BlockTransmit request parameters . 57
Table 86 – Encoding of BlockTransmissionHeartbeat request parameters . 58
Table 87 – Primitives delivered by ALU to ALE . 59
Table 88 – Primitives delivered by ALE to ALU . 59
Table 89 – ACE state descriptions . 60
Table 90 – ACE state transitions (sender) . 60
Table 91 – ACE state transitions (receiver) . 63
Table 92 – APServiceType() descriptions. 66
Table 93 – Primitives delivered by application layer user to FME . 66
Table 94 – Primitives delivered by FME to application layer user . 66
Table 95 – Primitive parameters exchanged between FME and application layer user . 67
Table 96 – Primitives delivered by FME to ESME . 67
Table 97 – Primitives delivered by ESME to FME . 67
Table 98 – Primitives parameters exchanged between FME and ESME . 67
Table 99 – State transitions of Type 14 FME . 68
Table 100 – RcvNewIpAddress() descriptions . 70
Table 101 – Attribute_Set() descriptions . 71
Table 102 – RestoreDefaults() descriptions . 71
Table 103 – NewAddress() descriptions . 71
Table 104 – Restart_Type 14RepeatTimer() descriptions . 71
Table 105 – Clear_DuplicatePdTagFlag() descriptions . 71
Table 106 – Type 14RepeatTimerExpire() descriptions . 72
Table 107 – Send_EM_ReqRspMessage() descriptions . 72
Table 108 – Send_EM_CommonErrorRsp() descriptions . 72
Table 109 – SntpSyncLost() descriptions . 72
Table 110 – IPAddressCollision() descriptions . 73
Table 111 – RecvMsg() descriptions . 73
Table 112 – QueryMatch() descriptions . 73
Table 113 – MessageIDMatch() descriptions . 73

– 6 – IEC 61158-6-14:2014 © IEC 2014
Table 114 – DevId_Match() descriptions . 73
Table 115 – PdTag_Match() descriptions . 74
Table 116 – Set_Attribute_Data() descriptions . 74
Table 117 – Set_DuplicatePdTagFlag() descriptions . 74
Table 118 – Primitives issued by ALU to AAE . 74
Table 119 – Primitives issued by AAE to ALU . 75
Table 120 – Primitives parameters exchanged between AAE and ALU . 75
Table 121 – Primitives issued by AAE to ESME . 75
Table 122 – Primitives issued by ESME to AAE . 75
Table 123 – Primitive parameters exchanged between AAE and ESME . 76
Table 124 – AAE state descriptions . 76
Table 125 – AAE state transitions (sender) . 76
Table 126 – AAE state transitions (receiver) . 77
Table 127 – ServiceType() descriptions . 78
Table 128 – State value of event management . 78
Table 129 – Event ASE state transition table . 79
Table 130 – Domain state value . 79
Table 131 – Domain ASE state transition table . 80
Table 132 – Domain_DownloadSucceed() description . 82
Table 133 – Domain_WriteBuffer() description . 83
Table 134 – IncreamentInvokeDomainCounter() description . 83
Table 135 – DecreamentInvokeDomainCounter() description . 83
Table 136 – State value of Block transmission . 83
Table 137 – Block ASE state transition table . 84
Table 138 – BlockTransmissionOpenSucceed() descriptions . 85
Table 139 – BlockTransmissionCloseSucceed() descriptions . 85
Table 140 – ReceiveBlockTransmissionHeartbeat_timeout() description . 85
Table 141 – Primitives issued by FME(or AAE) to AREP . 86
Table 142 – Primitives issued by AREP to FME(or AAE) . 86
Table 143 – Primitives parameters exchanged between AREP and FME(or AAE) . 86
Table 144 – Primitives issued by AREP to ESME . 86
Table 145 – Primitives issued by ESME to AREP . 86
Table 146 – Primitive parameters exchanged between AREP and ESME . 87
Table 147 – AREP state descriptions . 87
Table 148 – AREP state transitions . 87
Table 149 – AREPType() descriptions. 88
Table 150 – ServiceType() descriptions . 88
Table 151 – The primitives exchanged between transport layer and ESME . 89
Table 152 – Primitives parameters exchanged between Transport Layer and ESME . 89
Table 153 – ESME state description . 89
Table 154 – ECFME state transitions . 90
Table 155 – ServiceType()description . 90

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 6-14: Application layer protocol specification –
Type 14 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
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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
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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 the associated protocol type is restricted by its
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 its intellectual-property-right holders.
NOTE Combinations of protocol types are specified in IEC 61784-1 and IEC 61784-2.
International Standard IEC 61158-6-14 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This third edition cancels and replaces the second edition published in 2010. This edition
constitutes a technical revision. The main changes with respect to the previous edition are
listed below:
– 8 – IEC 61158-6-14:2014 © IEC 2014
• corrections of editorial errors;
• specification changes for CPF4;
• update of the requirements for all conformance classes;
• update of the requirements for all conformance services.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/764/FDIS 65C/774/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.
A list of all parts of the IEC 61158 series, published under the general title Industrial
communication networks – Fieldbus specifications, can be found on the IEC web site.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://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.
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 61158-1.
The application protocol provides the application service by making use of the services
available from the data-link or other immediately lower layer. The primary aim of this standard
is to provide a set of rules for communication expressed in terms of the procedures to be
carried out by peer application entities (AEs) at the time of communication. These rules for
communication are intended to provide a sound basis for development in order to serve a
variety of purposes:
• as a guide for implementors and designers;
• for use in the testing and procurement of equipment;
• as part of an agreement for the admittance of systems into the open systems environment;
• as a refinement to the understanding of time-critical communications within OSI.
This standard is concerned, in particular, with the communication and interworking of sensors,
effectors and other automation devices. By using this standard together with other standards
positioned within the OSI or fieldbus reference models, otherwise incompatible systems may
work together in any combination.

– 10 – IEC 61158-6-14:2014 © IEC 2014
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 6-14: Application layer protocol specification –
Type 14 elements
1 Scope
1.1 General
The Fieldbus Application Layer (FAL) provides user programs with a means to access the
fieldbus communication environment. In this respect, the FAL can be viewed as a “window
between corresponding application programs.”
This standard provides common elements for basic time-critical and non-time-critical
messaging communications between application programs in an automation environment and
material specific to Type 14 fieldbus. 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 specifies interactions between remote applications and defines the externally
visible behavior provided by the Type 14 fieldbus application layer in terms of
a) the formal abstract syntax defining the application layer protocol data units conveyed
between communicating application entities;
b) the transfer syntax defining encoding rules that are applied to the application layer
protocol data units;
c) the application context state machine defining the application service behavior visible
between communicating application entities;
d) the application relationship state machines defining the communication behavior visible
between communicating application entities.
The purpose of this standard is to define the protocol provided to
a) define the wire-representation of the service primitives defined in IEC 61158-5-14, and
b) define the externally visible behavior associated with their transfer.
This standard specifies the protocol of the Type 14 fieldbus application layer, in conformance
with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI application layer structure
(ISO/IEC 9545).
1.2 Specifications
The principal objective of this standard is to specify the syntax and behavior of the application
layer protocol that conveys the application layer services defined in IEC 61158-5-14.
A secondary objective is to provide migration paths from previously-existing industrial
communications protocols. It is this latter objective which gives rise to the diversity of
protocols standardized in the IEC 61158-6 series.

1.3 Conformance
This standard does not specify individual implementations or products, nor does it constrain
the implementations of application layer entities within industrial automation systems.
Conformance is achieved through implementation of this application layer protocol
specification.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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 IEC 61784-1 and IEC 61784-2 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 61158-3-14, Industrial communication networks – Fieldbus specifications – Part 3-14:
Data-link layer service definition – Type 14 elements
IEC 61158-4-14, Industrial communication networks – Fieldbus specifications – Part 4-14:
Data-link layer protocol specification – Type 14 elements
IEC 61158-5-14, Industrial communication networks – Fieldbus specifications – Part 5-14:
Application layer service definition – Type 14 elements
IEC 61158-6 (all parts), Industrial communication networks – Fieldbus specifications – Part 6:
Application layer protocol specification
ISO/IEC 646, Information technology – ISO 7-bit coded character set for information
interchange
ISO/IEC 2375, Information technology – Procedure for registration of escape sequences and
coded character sets
ISO/IEC 7498-1, Information technology – Open Systems Interconnection – Basic Reference
Model – Part 1: The Basic Model
ISO/IEC 8802-3, Information technology – Telecommunications and information exchange
between systems – Local and metropolitan area networks – Specific requirements – Part 3:
Carrier sense multiple access with collision detection (CSMA/CD) access method and
physical layer specifications
ISO/IEC 8822, Information technology – Open Systems Interconnection – Presentation
service definition
ISO/IEC 8824:1990, Information technology – Abstract Syntax Notation One (ASN.1):
Specification of basic notation
ISO/IEC 9545, Information technology – Open Systems Interconnection – Application Layer
structure
___________
Withdrawn.
– 12 – IEC 61158-6-14:2014 © IEC 2014
ISO/IEC 10731, Information technology – Open Systems Interconnection – Basic Reference
Model – Conventions for the definition of OSI services
ISO/IEC/IEEE 60559, Information technology – Microprocessor Systems – Floating-Poi
...