HEIDENHAIN TNC 320 User Manual page 16

Fundamentals
TNC model, software and features
New and modified cycle functions 77185x-02
Cycle 270 CONTOUR TRAIN DATA has been added
Cycle 39 CYL. SURFACE CONTOUR has been added (option 1)
The character set of Machining Cycle 225 ENGRAVING has been
expanded with the CE character, ß, the @ character and system
time
Cycles 252-254 have been expanded with the optional
parameter Q439
Cycle 22 ROUGH-OUT has been expanded by the optional
parameters Q401, Q404
Cycle 484 CALIBRATE IR TT has been expanded by the optional
parameter Q536
Further information: Cycle Programing User's Manual
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HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016