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Scope: Core (OPC-10000-*) All specs

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OPC-10000-80 – OPC Unified Architecture - Part 80: UAFX Overview and Concepts

5.4.1 General

Descriptor (see 6.4 ). See OPC 10000-83 for more details regarding OfflineEngineering and Descriptors . Assets and FunctionalEntities being used in applications, their available input, output, and configuration data, and communication ... capabilities are shared between engineers using Descriptors . The Descriptor allows product and system configuration data to be added by different engineers using their engineering tools at each phase
OPC-10000-80 – OPC Unified Architecture - Part 80: UAFX Overview and Concepts

5.4.3 Application engineering

information needed for Controller A and B Connections . Engineer B may import additional Descriptors describing components used with their Controller or other Controllers to be connected. Engineer B then adds
OPC-10000-80 – OPC Unified Architecture - Part 80: UAFX Overview and Concepts

6.4 OfflineEngineering

structured set of documents describing the functionality, capabilities, and configuration of the AutomationComponents . Descriptors may also contain supporting documentation such as user manuals and drawings
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

5.5.2 Generation, deployment, and modification

offline or online information. OfflineEngineering (see OPC 10000-83 ) offers the concept of Descriptors that describe the AutomationComponents ; see Figure 11 label 1. Using these Descriptors or retrieving information online
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

5.5.6.2.5 DataSetMetaData

DataSetMetaData Connections are configured by an engineering tool on behalf of Descriptors and are deployed to a ConnectionManager (see 5.5.2 ). Independent of the lifetime of a Connection, another engineering tool
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.2.2 AutomationComponentType definition

HasComponent Method 3:CloseConnections Defined in 6.2.5 M 0:HasComponent Object 3:Descriptors 0:FolderType M 0:HasComponent Variable 3:AggregatedHealth 3:AggregatedHealthDataType 3:AggregatedHealthType M 0:HasComponent Object ... Assets 0:Organizes Object 3:<Asset> 3:FxAssetType OP 3:Descriptors 0:HasComponent Object 3:<Descriptor> 3:AcDescriptorType OP 5:Diagnostics 0:HasComponent Variable 3:EstablishCallCount
OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

D.4.1 Raspberry Pi example

D.36 provides a zoomed-in view of the AutomationComponent MyRaspberryPiAC. It illustrates the multiple Descriptors that the AC exposes. One for the original Raspberry Pi application, one for the SenseHat
OPC-10000-82 – OPC Unified Architecture - Part 82: UAFX Networking

5.6.4.1 General

Applications will typically be sharing data in both directions between the Controllers, thus requiring Descriptors to be shared in both directions. The default networking configuration of End Station Component
OPC-10000-82 – OPC Unified Architecture - Part 82: UAFX Networking

5.6.4.2 Application and QoS engineering

line controller using this conveyor belt ( Controller ) as part of controlling a production line. Descriptors , defined in OPC 10000‑83 , enable the engineers to share application information between their respective
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

1 Scope

tools. How engineering tools implement the processes and functionality for the internal handling of Descriptors is left to the engineering tool vendors
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

5.2 Descriptor organization

Descriptor manifest file and Information Model file(s) and can contain attachment files, embedded Descriptors, or Common Services . Figure 6 - Organization of the files in a Descriptor The Descriptor manifest ... image files, certificates, or even software binaries (e.g., for firmware updates). Embedded Descriptors are useful for including information that is available in other Descriptors . For example, product-specific information could
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

5.5 Digital signature fundamentals

user that applies a change to it. Digital signatures are also present in embedded Descriptors . The digital signature as it resides inside a Descriptor is detailed in Figure 8 . Figure
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

6.1 Descriptor examples overview

Descriptor examples overview The following subclauses describe some examples of Descriptors being used in OfflineEngineering . These subclauses are not introductions to special definitions of Descriptors . The intention is to demonstrate
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

6.2 Descriptor with product information

product from an online AutomationComponent . The OPC UA FX Information Model defines a folder Descriptors in the AutomationComponentType , which can contain instances of AcDescriptorType . AcDescriptorType is fully defined
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

6.3 Descriptor with configuration information

connection establishment. A Descriptor with configuration information is typically built based on data from Descriptors with product information. In this case, the relevant Descriptors with product information are either included
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

6.4 Descriptor with product family information

drives product family There are two examples of designing product family information with Descriptors . Each member of a product family or subfamily is described by its own Descriptor with product ... information. All these Descriptors are embedded in a new Descriptor for the product family, and the Root AML Files of the embedded Descriptors become Root AML Files of this
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

6.5 Descriptor for modular AutomationComponents

shows the situation where the head end and the modules are described with embedded Descriptors . Figure 16 - Modular device Descriptor with embedded Descriptors In Figure 16 , a module can also
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.3.1 Overview

contains several kinds of files: The Descriptor manifest, Information Model files, attachment files, embedded Descriptors , and Common Services files. This is illustrated in Figure 17 . There is no prescribed folder
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.3.4 Attachment files

Attachment files are any files that are neither manifest files, Information Model files, Embedded Descriptors , or common service files. Attachment files are useful for providing additional information for the understanding
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.3.5 Embedded Descriptors

Embedded Descriptors A Descriptor may include one or more Embedded Descriptor s. Embedded Descriptors shall be compliant with all Descriptor requirements defined in the UAFX Offline Descriptor Profile
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.5.2 Open Packaging Conventions Relationships

ISO/IEC 29500-2:2021 clause 6.5.3.4). All Information Model attachments and embedded Descriptors in a Descriptor shall be the target of a relationship reference, and all these files shall ... files as the starting points and with all Information Model , attachments, and embedded Descriptors in a Descriptor referenced from the Root AML files either directly or indirectly (i.e., over
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.5.4 AutomationML ExternalReference

also be a Pack URI syntax for reference targets that are contained in Descriptors . The alias may be used to reference classes or instances. In this case, the reference
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

7.8.1 General

General Digital signatures for Descriptors are based on the XML Signature specification and shall follow the structure and requirements defined in ISO/IEC 29500-2:2021 , Clause 13. A Descriptor shall ... following: the Manifest, all Information Model files, all attachment files, .rels files, all Embedded Descriptors , and all Common Services files. The links to the external references
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

8.1 Engineering tools overview

Engineering tools overview In order to create, read, write, edit and manage Descriptors , some tooling is required in OfflineEngineering . This clause provides a brief overview of the tooling functions that
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

8.3.1 Descriptor Export

Information Model ( 8.3.6 ); Collect and select the files (AML files, attachment files, embedded Descriptors ) and place their files into a file structure. Part of this step is also to decide
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

8.3.2 Descriptor Import

this information can retrieve this data from the online AutomationComponent by browsing the Descriptors folder and reading the AcDescriptorType instances. A third option would be the engineering tool that already
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

8.4 Example workflow for sharing a Descriptor in OfflineEngineering

Controllers may be from different vendors or the same vendor. In Figure 23 , Descriptors are shared between the engineering tools in an export/import manner. The engineering tools consume the Descriptors ... allow meaningful communication. The yellow and orange boxes represent the information taken from the Descriptors by the engineering tools and downloaded together with the user programs into the Controllers
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

8.5 Version compatibility between engineering tools and Descriptors

Version compatibility between engineering tools and Descriptors In handling Descriptors with different OPC UA FxVersions, the following rules apply: Engineering tools shall document the supported OPC UA FxVersion. Engineering tools ... that are able to export or import Descriptors of a specific OPC UA FxVersion shall also be able to export or import Descriptors of a previous OPC UA FxVersion (backward
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

5.2.3 UAFX AutomationComponent

related types. It also includes at least one instance of AcDescriptorType in the Descriptors Folder , where the AcDescriptor supports at least one of the UAFX AutomationComponent AcDescriptor DescriptorFile or UAFX
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

5.4.2 UAFX OfflineEngineering Descriptor

Descriptor. UAFX Engineering Tool Offline UAFX Tool Descriptor Import Supports the importing of UAFX Descriptors . Offline UAFX Tool Descriptor Export Supports the exporting of UAFX Descriptors . Offline UAFX Tool UAFX ... Libraries. Offline UAFX Tool Descriptor Lifecycle Supports the handling of Descriptors with different FxVersions . UAFX OfflineEngineering Security - General Offline UAFX Descriptor Digital Signature Descriptor is signed using a digital signature
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.1 UAFX Offline Security Policy - Rsa-Pkcs-Sha256 Facet

Pkcs-Sha256 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with average security needs. Table 51 - UAFX Offline Security Policy - Rsa-Pkcs-Sha256 Facet Group
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.2 UAFX Offline Security Policy - Rsa-Pss-Sha256 Facet

Sha256 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with average security needs. Table 52 - UAFX Offline Security Policy - Rsa-Pss-Sha256 Facet Group Conformance
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.3 UAFX Offline Security Policy - Rsa-Pkcs-Sha384 Facet

Pkcs-Sha384 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with high security needs. Table 53 - UAFX Offline Security Policy - Rsa-Pkcs-Sha384 Facet Group
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.4 UAFX Offline Security Policy - Rsa-Pss-Sha384 Facet

Sha384 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with high security needs. Table 54 - UAFX Offline Security Policy - Rsa-Pss-Sha384 Facet Group Conformance
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.5 UAFX Offline Security Policy - Rsa-Pkcs-Sha512 Facet

Pkcs-Sha512 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with very high security needs. Table 55 - UAFX Offline Security Policy - Rsa-Pkcs-Sha512 Facet
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.6 UAFX Offline Security Policy - Rsa-Pss-Sha512 Facet

Sha512 Facet. This security Facet defines a public-key cryptography security policy for Descriptors with very high security needs. Table 56 - UAFX Offline Security Policy - Rsa-Pss-Sha512 Facet Group
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.7 UAFX Offline Security Policy - ECC-nistP256 Facet

nistP256 Facet. This security Facet defines an elliptic curve cryptography security policy for Descriptors with average security needs. NIST curves are widely implemented and offer better performance than RSA. Table
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.8 UAFX Offline Security Policy - ECC-nistP384 Facet

nistP384 Facet. This security Facet defines an elliptic curve cryptography security policy for Descriptors with high security needs. NIST curves are widely implemented and offer better performance than RSA. Table
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.2.9 UAFX Offline Security Policy - ECC-nistP521 Facet

nistP521 Facet. This security Facet defines an elliptic curve cryptography security policy for Descriptors with very high security needs. NIST curves are widely implemented and offer better performance than
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.9 UAFX Engineering Tool Import 2024 Profile

Profile. This Profile includes the functionality needed by an engineering tool capable of importing Descriptors . This Profile supersedes the UAFX Engineering Tool Import Profile. Table 66 - UAFX Engineering Tool Import
OPC-10000-84 – OPC Unified Architecture - Part 84: UAFX Profiles

6.6.5.10 UAFX Engineering Tool Export Profile

Profile. This Profile includes the functionality needed by an engineering tool capable of exporting Descriptors . Table 67 - UAFX Engineering Tool Export Profile Group Conformance Unit / Profile Title Optional UAFX OfflineEngineering