We have found one software suitable in our database for this conversion.
If any kind of dwg to plmxml conversion is possible, it would be export of CAD/3D modeling data between standard DWG format and PLNXML format. Unfortunately, we have not been able to find any specifics about such conversion or export, just that it should be doable.
Updated: January 12, 2023
DWG
A dwg file extension is used for common CAD file format, originally used by AutoCAD. A DWG is a proprietary format and can only be created in AutoCAD. Other CAD programs can usually import it, but not create its proprietary form. It's because of this, that DWGs are often exported to DXF interchange format, so they can be seamlessly used in other CAD programs.
PLMXML
Files with plmxml file extension can be found as product data files meant for high content transfer over the Internet. Based on W3C XML schemas.