HART 5 DD/EDD Registrations will be accepted provided the device (device type, device revision) was already Compliance Registered before March 31, 2011.


HART 5 DD/EDD Revisions will be accepted for Registration provided that a DD/EDD for that device type and device revision is already registered.

  • Updates made to DD/EDDs must comply with HART EDD compatibility rules. 
  • HART 5 EDDs must be built with the latest versions of HART 5 Universal Commands Rev 5, DD Rev 2 (Univ5_2.ddl) and Common Practice Commands Rev 7, DD Rev 4 (Cmn7_4.ddl)