1. Electrical wiring harness interoperability: functionalities of AP242 ed2; preparation of the STEP 'electrical' Implementer Forum By Sophie Hérail (CIMPA subcontractor for AFNeT)
May 17 & 18, (Paris) – ‹1›

2. Table of content Introduction
Business values for Electrical Harness interoperability
Overview of STEP AP242 ed2 for Electrical Harness
Interdependencies with other standards
Scope
Development status & content
Pilots
Preparation of the requirements and scope for AP242 edition3
Preparation of the Electrical Implementer Forum and of its relationships with the Cax-IF and PDM-IF
Summary/next actions
May 17 & 18, (Paris) – ‹2›

3. Business values for Electrical Harness interoperability
New aerospace product increasingly include complex electrical system and harnesses.
There is no international standard available for electrical harness information interoperability.
With STEP AP242, the goal is to ensure the availability of interoperability functionallity for the electrical harnesses and wiring systems in the following areas:
Interoperability between functional and physical harness design
Long term archiving and retrieval of physical harness for:
Certification,
Support in operation,
Reuse.
Ease downstream process in the extended enterprise,
Migration of legacy data to new electrical harness systems,
Support interoperability of multi-discipline model-based design.
E-Fan X hybrid-electric flight demonstrator
More and more electrical systems in aerospace products
May 17 & 18, (Paris) – ‹3›

4. Electrical design information flow: Examples of different applications involved
Preliminary Design
Detail Design
(Harness Level)
Manufacturing
engineering
Maintenance
Visualization
Flattening
Block diagram
Simulation
Wiring diagram
Fonctional
Stick line representation
3D representation
L-T Archiving & Retrieval
Installation
Lot of electrical harness disciplines using different tools that need to interoperate
May 17 & 18, (Paris) – ‹4›

5. STEP AP242 for Electrical Harness interoperability – Overview & target
Preliminary inst. Design
3D Electrical Harness design definition with semantic
Electrical System
Conversion for 3D light Visualization
Functional definition
STEP
AP242
Elec DB
Simulation
Elec. Harness L-T Archiving & Retrieval
3D Elec harness Test & Manufacturing
CAD 3D Elec. harness design exchange in the EE
OEM
Tier 1
Tier 2
Heterogeneous COTS applications
May 17 & 18, (Paris) – ‹5›

6. Introduction – Scope of STEP AP242 ed2
Physical electrical harness model for design & construction,
Electrical functional connectivity information (wire list)
Main extension of STEP AP242 ed2: Electrical Wiring Harness design
May 17 & 18, (Paris) – ‹6›

7. STEP AP242 ed2 for Electrical Harness – Scope of edition 2
Electrical harness design (2D, 3D…)
Electrical devices: connectors, backshelves, splices, braid, wrap, terminals…
Connectivity information: Wire List…
Scope: focus on physical electrical harness (topology, wires, lengths, protections…)
May 17 & 18, (Paris) – ‹7›

8. STEP AP242 ed2 development overview & associated Implementer Forum
Ballot of STEP AP242 ed2 Committee Draft has been successful in Oct. 2016
Draft International Standard of STEP AP242 ed2 sent to ISO in Feb. 2018
2018 – S1: Preparation of the First Draft International Standard
For an International Standard planned to be published beg. of 2019
Launch of the Electrical harness Implementer Forum in S2 2018
DIS ballot in S – Planned start of Electrical Implementer Forum in S2 2018
May 17 & 18, (Paris) – ‹8›

9. Scope of the AP242 ed2 Activity model for electrical Harness
Activity model (DIS version)
Focus of STEP AP242 ed2: Physical harness design
(Scope extension planned for AP242 ed3)
May 17 & 18, (Paris) – ‹9›

10. Domain Model overview of AP242 ed2 Electrical Harness model
Simplified view of main objects of Electrical Harness Domain Model technical capability
May 17 & 18, (Paris) – ‹10›

11. Content of the Draft International Standard for Electrical Harness
The Electrical Harness Domain Model Technical Capability is consistent with other domain in the scope of AP242 ed2 (PDM, Kinematic, composite, PMI…) & covers Wiring Harness design information to manufacture the harness.
STEP AP242 ed2 = Integrated model across several domains
May 17 & 18, (Paris) – ‹11›

12. Overview of the STEP AP242 ed2 Electrical Harness tutorial V1
Tutorial based on a representative example (common cases, simple to complex connector, …). Version 2 in development based on STEP AP242 ed2 FDIS.
Tutorial as the basis for future recommended practices of “Electrical” Implementer Forum
May 17 & 18, (Paris) – ‹12›

13. CoreTechnologie pilot status : CATIA V5 <=> AP242 ed2 CD xml
Started end of 2014 to check STEP AP242 ed2 CD Electrical wiring harness model and identify missing concepts.
1st implementation of STEP AP242 ed2 CD Electrical Harness xml to check the quality of the data model
May 17 & 18, (Paris) – ‹13›

14. Datakit pilot status: UG-NX <=> AP242 ed2 CD xml
Verify interoperability capability between 2 main CAD systems: CATIA V5 and NX
May 17 & 18, (Paris) – ‹14›

15. Dassault Systemes STEP AP242 ed2 Elec. harness implementation plan
Future extension planned by Dassault Systemes for 3D Experience  AP242 ed2 for electrical harness
May 17 & 18, (Paris) – ‹15›

16. Preparation of the requirements and scope for AP242 ed3
STEP AP242 edition3 project is in preparation, planned to be launched in 2019.
Some potential extension have already been identified for electrical domain:
Equipotential / signal concepts
Link to electrical harness simulation (e.g. voltage drop, etc.)
Functional information: logical link, function, net…
EWIS requirements, safety rules,…
Electrical libraries
Optical fibre specificities
Manufacturing process (form board…),
Some potential extensions already identified: OEMs to provide their needs
May 17 & 18, (Paris) – ‹16›

17. Preparation of the Electrical Implementer Forum
The Electrical Implementer Forum is planned to be launch in S2 2018
Electrical Implementer Forum will work in close relationship with Cax-IF and PDM-IF
It will be based on STEP AP242 ed2
Elec. Harness software editors and integrators:
Already 2 vendors involved in pilot development:
Datakit & Core Technologie
Start of discussion with major PLM editors
Tutorial V2 in preparation: draft of future recommended practices
Test cases: 2 test cases already available
Launch of Electrical Implementer Forum planned in S2 2018
May 17 & 18, (Paris) – ‹17›

18. Preparation of the Electrical Implementer Forum
The Users group defines the priorities of implementation of the STEP Elec. Harness interfaces and services through the definition of use cases & test cases
Representatives of the industries participate in the Elec. Harness user group.
The Implementation Group is in charge of:
The definition of STEP Elec Recommended Practices and possible associated integration / sharing services
The Interoperability test rounds
Coordination of the Elec. IF activities will be supported by experts of STEP associations
Electrical Implementer Forum
Aerospace, transportation,
& energy industries… 1
User Group
Implementation group 2 1
Use cases and priority of implementation of Electrical interoperability functionalities 2
Status of Electrical Test Rounds & rec. Practices, recom. of enhancement to the STEP standards
Participation to users group allow to influence vendors according to industries needs
May 17 & 18, (Paris) – ‹18›

19. Summary – next actions Finalize AP242 ed2 FDIS & IS in S2 2018
Next meetings: 19 – 21 June in Toulouse (tutorial V2)
Prepare the launch of the Electrical harness Implementer Forum in S2 2018
Manufacturers: participate to user group to influence vendors according your needs!
Elec. Harness software editors: preparation for joining in 2019!
Prepare the white paper of AP242 ed3 to extend the scope of wiring harness interoperability :
Equipotential / signal concepts
Functional information: logical link, function, net…
EWIS requirements, safety rules,…
Electrical libraries
Optical fibre specificities
Fabrication procedure (form board…)
: according to priorities and levels of support of the industries
May 17 & 18, (Paris) – ‹19›

20. Thank you!
May 17 & 18, (Paris) – ‹20›