IEC 62769-7:2015

IEC 62769-7 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field Device Integration (FDI) –
Part 7: FDI Communication Devices

Intégration des appareils de terrain (FDI) –
Partie 7: Appareils de communication FDI

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IEC 62769-7 ®
Edition 1.0 2015-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field Device Integration (FDI) –

Part 7: FDI Communication Devices

Intégration des appareils de terrain (FDI) –

Partie 7: Appareils de communication FDI

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100 ISBN 978-2-8322-2641-4

– 2 – IEC 62769-7:2015 © IEC 2015
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, abbreviated terms, acronyms and conventions . 10
3.1 Terms and definitions . 10
3.2 Abbreviated terms and acronyms . 11
3.3 Conventions for graphical notation . 11
4 General . 11
5 FDI Communication Package . 13
5.1 General . 13
5.2 EDD . 13
5.2.1 General rules . 13
5.2.2 Device component . 14
5.2.3 CommunicationDevice component . 15
5.2.4 Communication service provider component . 16
5.2.5 Connection Point component . 17
5.2.6 Connection Point collection. 18
5.2.7 Network component . 18
5.2.8 ValidateNetwork . 19
5.2.9 ValidateModules . 20
5.2.10 UIP specifics . 21
5.2.11 Deployment . 21
6 Communication relations . 21
7 FDI Communication Server definition . 22
7.1 General . 22
7.2 General characteristics . 22
7.3 Information Model . 23
7.3.1 General . 23
7.3.2 CommunicationServerType . 25
7.3.3 ServerCommunicationDeviceType . 29
7.3.4 ServerCommunicationServiceType . 33
7.4 OPC UA Server Profile for FDI Communication Server . 37
7.5 Mapping the FDI Server IM to the FDI Communication Server IM . 37
7.5.1 General . 37
7.5.2 Information Model differences . 37
7.6 Installer. 39
7.7 FDI Communication Package . 39
7.7.1 General . 39
7.7.2 EDD for Lightweight Communication Server. 39
7.7.3 EDD for Multi-Channel Communication Server . 40
7.7.4 Documentation . 40
7.8 Handling and behavior . 40
7.8.1 General . 40
7.8.2 Deployment . 41

7.8.3 Server configuration . 41
7.8.4 Start up . 42
7.8.5 Shutdown . 42
7.8.6 Watchdog . 42
7.8.7 Establish the OPC UA connection . 42
7.8.8 Instantiate the Communication Server . 43
7.8.9 Configure the communication hardware . 43
7.8.10 Configure the Network . 43
7.8.11 Parameterize . 43
7.8.12 Initialize . 43
7.8.13 Create the communication service object . 43
7.8.14 Communication relation . 44
7.8.15 Connect . 44
7.8.16 Disconnect . 45
7.8.17 Abort indication . 45
7.8.18 Scan . 45
7.8.19 SetAddress . 45
8 FDI Communication Gateway definition . 45
8.1 General . 45
8.2 Information Model . 45
8.2.1 General . 45
8.2.2 CommunicationGatewayType . 46
8.2.3 GatewayCommunicationDeviceType . 47
8.2.4 GatewayCommunicationServiceType . 50
8.3 FDI Communication Package . 54
8.3.1 General . 54
8.3.2 EDD . 54
8.4 Handling and behavior . 56
8.4.1 General . 56
8.4.2 Deployment . 57
8.4.3 Start up . 57
8.4.4 Configure the communication hardware . 57
8.4.5 Configure the Network . 57
8.4.6 Parameterize . 57
8.4.7 Communication relation . 57
8.4.8 Connect . 57
8.4.9 Disconnect . 57
8.4.10 Abort indication . 58
8.4.11 Scan . 58
8.4.12 Communication Error Handling . 58
Annex A (informative) Layered protocols . 59
A.1 General . 59
A.2 Convention for protocol specific annex creation . 59
A.2.1 Connection Point . 59
A.3 FDI Communication Package definition . 60
A.3.1 Communication services . 60
A.3.2 Connection Point . 60
A.3.3 Network . 60
A.4 Representation in the IM . 61

– 4 – IEC 62769-7:2015 © IEC 2015
Annex B (normative) Namespace and Mappings . 62
Bibliography . 63

Figure 1 – FDI architecture diagram . 9
Figure 2 – FDI communication infrastructure architecture . 12
Figure 3 – Communication relation . 21
Figure 4 – Communication relation state chart . 22
Figure 5 – FDI Communication Server AddressSpace . 24
Figure 6 – CommunicationServerType . 25
Figure 7 – ServerCommunicationDeviceType . 29
Figure 8 – ServerCommunicationServiceType . 33
Figure 9 – Information Model differences (example) . 38
Figure 10 – FDI Communication Server state machine . 41
Figure 11 – Communication relation state chart . 44
Figure 12 – Gateway information model . 46
Figure 13 – CommunicationGatewayType . 47
Figure 14 – GatewayCommunicationDeviceType . 48
Figure 15 – GatewayCommunicationServiceType . 51
Figure 16 – Nested Communication . 56

Table 1 – ValidateNetwork Action arguments . 20
Table 2 – ValidateModules Action arguments . 20
Table 3 – CommunicationServerType definition . 25
Table 4 – MethodSet of CommunicationServerType . 25
Table 5 – Reset Method arguments . 26
Table 6 – Reset Method AddressSpace definition . 26
Table 7 – Initialize Method arguments . 27
Table 8 – Initialize Method AddressSpace definition . 27
Table 9 – AddComponent Method arguments . 28
Table 10 – AddComponent Method AddressSpace definition . 28
Table 11 – RemoveComponent Method arguments . 29
Table 12 – RemoveComponent Method AddressSpace definition . 29
Table 13 – ServerCommunicationDeviceType definition . 30
Table 14– MethodSet of ServerCommunicationDeviceType . 30
Table 15 – Scan Method arguments . 31
Table 16 – Scan Method AddressSpace definition . 31
Table 17 – ResetScan Method arguments . 31
Table 18 – ResetScan Method AddressSpace definition. 32
Table 19 – SetAddress Method arguments . 32
Table 20 – ServerCommunicationServiceType definition . 33
Table 21 – MethodSet of ServerCommunicationServiceType . 34
Table 22 – Connect Method arguments . 35
Table 23 – Disconnect Method arguments . 35

Table 24 – Transfer Method arguments . 36
Table 25 – GetPublishedData Method arguments. 37
Table 26 – FDICommunicationServer_Facet definition . 37
Table 27 – CommunicationGatewayType definition . 47
Table 28 – GatewayCommunicationDeviceType definition . 48
Table 29– MethodSet of GatewayCommunicationDeviceType . 48
Table 30 – Scan Method arguments . 49
Table 31 – Scan Method AddressSpace definition . 49
Table 32 – ScanNext Method arguments . 50
Table 33 – ScanNext Method AddressSpace definition . 50
Table 34 – GatewayCommunicationServiceType definition . 51
Table 35 – MethodSet of GatewayCommunicationServiceType . 52
Table 36 – Connect Method arguments . 53
Table 37 – Transfer Method arguments . 54

– 6 – IEC 62769-7:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIELD DEVICE INTEGRATION (FDI) –

Part 7: FDI Communication Devices

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,
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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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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
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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.
International Standard IEC 62769-7 has been prepared by subcommittee 65E: Devices and
integration in enterprise systems, of IEC technical committee 65: Industrial-process
measurement, control and automation.
The text of this standard is based on the following documents:
CDV Report on voting
65E/350/CDV 65E/420/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 the ISO/IEC Directives, Part 2.
A list of all parts in the 62769 series, published under the general title Field Device Integration
(FDI), can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 8 – IEC 62769-7:2015 © IEC 2015
INTRODUCTION
The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of patents concerning
a) Method for the Supplying and Installation of Device-Specific Functionalities, see Patent
Family DE10357276;
b) Method and device for accessing a functional module of automation system, see Patent
Family EP2182418;
c) Methods and apparatus to reduce memory requirements for process control system
US2013232186;
software applications, see Patent Family
d) Extensible Device Object Model, see Patent Family US12/893,680.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holders of these patent rights have assured the IEC that he/she is willing to negotiate
licences either free of charge or under reasonable and non-discriminatory terms and
conditions with applicants throughout the world. In this respect, the statement of the holder of
this patent right is registered with IEC. Information may be obtained from:
a) ABB Research Ltd
Claes Rytoft
Affolterstrasse 4
Zurich, 8050
Switzerland
b) Phoenix Contact GmbH & Co KG
Intellectual Property, Licenses & Standards
Flachsmarktstrasse 8, 32825 Blomberg
Germany
c) Fisher Controls International LLC
John Dilger, Emerson Process Management LLLP
st
301 S. 1 Avenue, Marshaltown, Iowa 50158
USA
d) Rockwell Automation Technologies, Inc.
1 Allen-Bradley Drive
Mayfield Heights, Ohio 44124
USA
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights other than those identified above. IEC shall not be held responsible for
identifying any or all such patent rights.
ISO (www.iso.org/patents) and IEC (http://patents.iec.ch) maintain on-line data bases of
patents relevant to their standards. Users are encouraged to consult the data bases for the
most up to date information concerning patents.

FIELD DEVICE INTEGRATION (FDI) –

Part 7: FDI Communication Devices

1 Scope
This part of IEC 62769 specifies the elements implementing communication capabilities called
Communication Devices (IEC 62769-5).
The overall FDI architecture is illustrated in Figure 1. The architectural components that are
within the scope of this document have been highlighted in this illustration. The document
scope with respect to FDI Packages is limited to Communication Devices. The Communication
Server shown in Figure 1 is an example of a specific Communication Device.
User Interface
FDI Package
Description
FDI Package
User
Device Business User
Interface
Definition User Logic Interface User
Plug-in
FDI Client Device Business
Interface Interface
Definition Logic
Description Plug-in
UID
Interpreter
UID
FDI Server
UIP
Information Model Management
Services
Information Model Business Logic
User Interface
Processor
OPC UA
Plug-in
Device Object
Business
Device Object
Logic
Device Object
User Interface Services
Platform UI Services
(Drawing, Input Devices)
System Services
OPC UA
Services
OPC UA
OPC UA Client
Services
System
Communication
Communication
Hardware
Server
Data
Specified by this part of this International Standard
Store
Specified by other parts of this International Standard
Not specified by this International Standard
IEC
Figure 1 – FDI architecture diagram
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.
OPC UA
Hosting Services
Device Access
Services
OPC UA Services
Business Logic
Interface
– 10 – IEC 62769-7:2015 © IEC 2015
IEC 61804-3, Function blocks (FB) for process control and Electronic Device Description
Language (EDDL) – Part 3: EDDL syntax and semantics
IEC 61804-4, Function blocks (FB) for process control and Electronic Device Description
Language (EDDL) – Part 4: EDD interpretation
IEC 62541 (all parts), OPC Unified Architecture
IEC TR 62541-1, OPC Unified Architecture – Part 1: Overview and Concepts
IEC 62541-4, OPC Unified Architecture – Part 4: Services
IEC 62541-6, OPC Unified Architecture – Part 6: Mappings
IEC 62541-7, OPC Unified Architecture – Part 7: Profiles
IEC 62541-100, OPC Unified Architecture – Part 100: OPC UA for Devices
IEC 62769-1, Field Device Integration (FDI) – Part 1: Overview
NOTE IEC 62769-1 is technically identical to FDI-2021.
IEC 62769-2, Field Device Integration (FDI) – Part 2: FDI Client
NOTE IEC 62769-2 is technically identical to FDI-2022.
IEC 62769-3, Field Device Integration (FDI) – Part 3: FDI Server
NOTE IEC 62769-3 is technically identical to FDI-2023.
IEC 62769-4:2015, Field Device Integration (FDI) – Part 4: FDI Packages
NOTE IEC 62769-4 is technically identical to FDI-2024.
IEC 62769-5, Field Device Integration (FDI) – Part 5: FDI Information Model
NOTE IEC 62769-5 is technically identical to FDI-2025.
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 62769-1 as well as
the following apply.
3.1.1
gateway
communication device that enables to bridge between different physical networks or different
protocols
3.2 Abbreviated terms and acronyms
For the purposes of this document, the abbreviated terms and acronyms given in IEC 62769-1
and the following apply.
HTTP Hypertext Transfer Protocol
IP Internet Protocol
PHY Physical communication hardware
SNMP Simple Network Management Protocol
TCP Transmission Control Protocol
URI Uniform Resource Identifier
3.3 Conventions for graphical notation
This document uses the graphical notation defined in IEC 62769-5.
4 General
The abstract term FDI Communication Device represents an entity implementing
communication functions over a network using a specific protocol. The group of FDI
Communication Devices splits into two main groups.
a) The FDI Communication Server is a dedicated OPC UA Server providing access to one or
more field device networks. The FDI Communication Server is specified in Clause 7.
b) The FDI Communication Gateway enables to bridge between different physical networks
or different protocols. The bridging business logic is implemented in the EED component
that is provided with an FDI Communication Package. The FDI Communication Gateway is
specified in Clause 8.
NOTE The main differences between a Gateway and a Communication Server are:in terms of FDI the FDI
Communication Server is a dedicated OPC UA Server providing access to one or more field device networks. A
Gateway is a communication device that enables to bridge between different physical networks or different
protocols. The logical representation of a Gateway device within the FDI Server hosted Information Model enables
the FDI Server to process communication in heterogeneous network topologies.

– 12 – IEC 62769-7:2015 © IEC 2015
FDI Server
Information Model
CommunicationServerType:
CommunicationServerName
SubDevices
FDI
ServerCommunicationDeviceType:
Communication OPC UA
Network_B_Channel
Server
Communication
ServerCommunicationServiceType:
Services
CommunicationServiceProvider_B
Hardware Driver
ConnectionPointType:
PHY
CP_B_Master
NetworkType:
Network B
Network_B
ConnectionPointType:
Gateway_B1
CP_B1
CommunicationGatewayType:
Gateway_B1
Network G
SubDevices
[1.n]
GatewayCommunicationDeviceType:
Module 1
FI G101
GatewayCommunicationServiceType:
CommunicationServiceProvider_G
Communication
ConnectionPointType:
Relation
CP_G_Module
NetworkType:
Network_G
ConnectionPointType: DeviceType:
CP_G1 FI G101
IEC
Figure 2 – FDI communication infrastructure architecture
The FDI Server hosted Information Model contains a representation of the network topology.
(see also IEC 62769-5). The Information Model shown in Figure 2 is an example excerpt to
illustrate how the Information Model used elements reflect the actual network topology.
a) The instance of CommunicationServerType (named CommunicationServerName)
represents the FDI Communication Server. The FDI Communication Server implements
physical communication network access (Communication hardware). Clause 7 describes
related Information Model specifics, required FDI Communication Package content and
handling of elements therein. (For subdevices see IEC 62769-5).
b) The instance of ServerCommunicationDeviceType and ServerCommunication-ServiceType
(named Network_B_Channel) maps to the FDI Communication Server implemented
communication services. The ServerCommunicationDeviceType is specified in 7.3.3. The
ServerCommunicationServiceType is specified in 7.3.4.
c) The instance of CommunicationGatewayType (named Gateway_B1) represents the
physical Gateway. Clause 8 describes the related Information Model specifics, the
required FDI Package content and the handling of elements therein.
Module 1
Module 2
Module n
d) The instance of GatewayCommunicationDeviceType (named Module 1) maps to a physical
or logical module enabling communication to the network to which this module is
connected. The GatewayCommunicationDeviceType is specified in 8.3.2.3. The related
Gateway specifics are described in Clause 8.
e) The instance of GatewayCommunicationServiceType (named
CommunicationServiceProvider_G) represents the Gateways’ ability to process
communication services. The Gateway specific implementation of
GatewayCommunicationServiceType is based on Business Logic that enables to run
communication services in heterogeneous communication networks.
f) A communication relation (more details are described in Clause 6) between a physical
device and the device representation managed by the FDI Server is always associated to
communication service objects that are instances of a
GatewayCommunicationServiceType or ServerCommunicationServiceType. The ability of
instantiating multiple communication service objects supports protocols enables to operate
multiple logical connections between a bus master and a device.
g) The Information Model represents the connections between the physical devices shown on
the left side of Figure 2 based on instances of ConnectionPointType NetworkType and the
depicted relations. ConnectionPointType and NetworkType are specified in IEC 62769-5.
5 FDI Communication Package
5.1 General
The FDI Server imports the FDI Communication Package like any other FDI Device Package.
Clause 5 specifies the FDI Communication Package details.
5.2 EDD
5.2.1 General rules
The FDI Communication Package contained EDD is not restricted, but bound to a protocol
specific annex (IEC 62769-4:2015, Annex F).
The EDD elements as specified in IEC 62769-4:2015, Annex F, and provided with an FDI
Communication Package shall describe:
a) Parameter and parameter structures. Mandatory protocol specific parameter definitions
are found in IEC 62769-4:2015, Annex F. The parameter shall contain any parameter that
requires adjustment for proper communication service operation.
b) Physical Layer identification. Protocol specific definitions are found in IEC 62769-4:2015,
Annex F.
c) Communication devices modularity: The modularity information shall be based on using
the EDDL constructs COMPONENT (see IEC 61804-3).
FDI envisions communication device modularity to cope with communication hardware
providing multiple physical or logical communication channels to access multiple logical or
physical communication networks. Each module element of the whole communication
device shall be described by a separate EDD element.
d) The COMPONENT definition shall be used to support the system implemented topology
configuration. Protocol specific definitions are found in IEC 62769-4:2015, Annex F. The
related COMPONENT definitions are described in 5.2.2, 5.2.3, 5.2.4, and 5.2.7.
e) The Business Logic shall contain a method enabled to validate the network (see 5.2.8).
The validation function considers the elements only directly connected to the network. The
validation function shall be referred by the EDDL specified CHECK_CONFIGURATION
attribute.
f) The Business Logic can contain a method enabled to validate the module configuration
(see 5.2.9) or the network configuration (see 5.2.8). The validation function considers the
elements only directly connected to the related parent element in the topology. The

– 14 – IEC 62769-7:2015 © IEC 2015
validation function shall be referred by the EDDL specified CHECK_CONFIGURATION
attribute.
g) Connection Point data: The Connection Point (see 5.2.4 and 5.2.6) shall be described
through EDDL constructs COMPONENT, COLLECTION and VARIABLE. The
COMPONENT definition associates the Connection Point element to the Communication
Device. The VARIABLE definitions represent the properties of a specific Connection Point.
The COLLECTION represents the Connection Point structure as such. Protocol specific
definitions are found in IEC 62769-4:2015, Annex F.
h) MENU:
The Menu structure shall follow the Menu conventions for PC based applications
according to IEC 61804-4 enabling access to
1) FDI Communication Device Type (Bus) parameters: These parameters shall be made
accessible by means of “offline_root_menu”.
2) Topology Configuration Dialogs shall be made available by means of the menu entry
point “topology_configuration”. Protocol specific definitions are found in IEC 62769-
4:2015, Annex F.
5.2.2 Device component
Each FDI Communication Package shall contain an EDD element describing the device.
COMPONENT
{
LABEL "";
CAN_DELETE TRUE;
CHECK_CONFIGURATION ;
CLASSIFICATION NETWORK_COMPONENT;
COMPONENT_RELATIONS
{

}
}
COMPONENT_RELATION
{
LABEL "Relation type description";
RELATION_TYPE CHILD_COMPONENT;
ADDRESSING {}
COMPONENTS
{

{
AUTO_CREATE ;
REQUIRED_RANGES
{
{ MIN_VALUE ; MAX_VALUE ;}
}
}
}
MINIMUM_NUMBER ;
MAXIMUM_NUMBER ;
}
: The COMPONENT identifier identifies the component description for
the device type.
: The string value shall contain a string that allows a human user to determine the
function of the FDI Communication Server object.
: The Value refers to the METHOD implementing the module topology
configuration validation function. (Implementation details are specified in 5.2.9.)

The attribute COMPONENT_RELATIONS allows to describe how modules can be connected. The
definition of the COMPONENT_RELATIONS is optional. If used it shall describe the relations to
the CommunicationDevice definition
...