PDM-UG: External File Reference

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This page belongs to the PDM Usage Guide.

External files may also be associated with product data in a way that is consistent but simpler than that used for documents. While the requirement to assign documents to various product data is basically supported by three additional entities: document_product_equivalence, document, and applied_document_reference, external files need only the applied_document_reference entity to be related as a reference to other product data.

The Instance Model: EXPRESS entities and attributes

The EXPRESS entities and attributes used to support the requirements of external file association to product data are illustrated in Diagram 43.

Image:Diagram_43_External_File_Association_to_Product_Data_Instance_Diagram.png
Diagram 43: External File Association to Product Data Instance Diagram

The Instance Model: STEP exchange file format (ISO10303 Part 21 syntax)

#70=PRODUCT('MP-03-2','my part',$,(#60));
#80=PRODUCT_DEFINITION_FORMATION('03','3rd modification',#70);
#90=PRODUCT_DEFINITION('/NULL',$,#80,#50);
...
#120=DOCUMENT_TYPE('geometry');
#130=DOCUMENT_FILE('measure file id','measure data',$,#120,'',$);
#140=APPLIED_DOCUMENT_REFERENCE(#130,'',(#90));
#150=OBJECT_ROLE('informative',$);
#160=ROLE_ASSOCIATION(#150,#140);
#170=DOCUMENT_REPRESENTATION_TYPE('digital',#130);
Example 45: exchange file segment for external file association to product data
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