A couple years late, but maybe it could help someone else !
As I was looking for the same info, I found an old manual describing all the members of class 0x0047. Please look for ENET-AP005 page 50+ (https://belorg.by/wp-content/uploads/rockwell/ap/enet-ap005_-en-p.pdf)
Unfortunatly, it is no more available on RockwellWebsite.