I see a joint press release today from Siemens and Emerson announcing their support for global standards. As I see it, EDDL brought them together, but the real benefit for users is that they’ll support “each other’s” standards.
Emerson is known for supporting Foundation Fieldbus (FF) and Siemens will add support for FF to its devices.
Siemens is known for supporting PROFIBUS and PROFINET and Emerson will support those standards in its offerings.
The clear winners are the users. They now have more vendors supporting more standards.