In Germany, ACCs currently only use Elementary Surveillance, which is a data block consisting of the 24-bit a/c ID, the Flight ID (which is usually set via the FMS), Mode A code and Mode C altitude in 25ft increments.
The controller can actually see Mode A, Mode C and Flight ID read-out (the latter being a surprise to pilots who
still enter crap for the Flight ID).
Enhanced Surveillance is not used as of now. Once it is in use, it will probably only contain the data which is standard as per ICAO: Roll Angle, True Track Angle, Ground Speed, Track Angle Rate, True Airspeed, Magnetic Heading, Indicated Airspeed, Mach, Barometric Altitude Rate and Inertial Vertical Velocity.
What will actually be displayed on the controller's display though hasn't been decided yet (and will probably be subject of very lengthy discussions
).
Regards,
Robert