HEIDENHAIN TNC 320 User Manual page 663

Functions of the TNC 320 and the iTNC 530 compared
Function
SLII Cycles 20 to 24:
Behavior with islands not
contained in pockets
Set operations for SL cycles
with complex contour formulas
Radius compensation is active
during CYCL CALL
Paraxial positioning blocks in
contour subprogram
Miscellaneous functions M in
contour subprogram
Cylinder surface machining
general:
Contour definition
Offset definition on cylinder
surface
Offset definition for basic
rotation
Circle programming with C/CC
APPR/DEP blocks in contour
definition
Cylinder surface machining
Cycle 28:
Complete roughing-out of slot
Definable tolerance
Cylinder surface machining
Cycle 29
Cycles 25x for pockets, studs
and slots:
Plunging movements
HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
TNC 320
Cannot be defined with
complex contour formula
Real set operation possible
Error message is issued
Error message is issued
Error message is issued
in
With X/Y coordinates,
independent of machine type
With datum shift in X/Y,
regardless of machine type
Function available
Function available
Function not available
with
Function available
Function available
with Direct plunging to contour of ridge
In limit ranges (geometrical
conditions of tool/contour) error
messages are triggered if plunging
movements lead to unreasonable/
critical behavior
iTNC 530
Restricted definition in complex
contour formula is possible
Only restricted performance of
real set operation possible
Radius compensation is
canceled, program is executed
Program is executed
M functions are ignored
Machine-dependent, with
existing rotary axes
Machine-specific datum shift in
rotary axes
Function not available
Function not available
Function available
Function not available
Function available
Circular approach to contour of
ridge
In limit ranges (geometrical
conditions of tool/contour), vertical
plunging is used if required
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