In a database (DBC or xml), signal could have a long name property. This property is not avaible in Xnet databse editor or in LabVIEW. That could be a probleme when several signal have the same first 32 character.
Always with Xnet, when reading signal value (or reading frame and convert frame to signals), the result is always a number. In database, some signal have a convertion table to string for a better understading