HEIDENHAIN TNC 320 User Manual page 532

16
Tables and overviews
16.5 Functions of the TNC 320 and the iTNC 530 compared
Function
Effect of Q parameters
Automatic cancelation of tool
radius compensation
NC blocks with M91
Tool shape compensation
Mid-program startup in a point
table
Empty CC block (pole of last tool
position is used) in NC program
Axis-specific scaling of RND block
Reaction if a contour element
with length 0 is defined before or
after a RND or CHF block
532
TNC 320
Q60 to Q99 (or QS60 to QS99) are
always local
Block with R0
DEP block
END PGM
No consideration of tool radius
compensation
Tool shape compensation is not
supported, because this type of
programming is considered to be
axis-value programming, and the
basic assumption is that axes do
not form a Cartesian coordinate
system
The tool is positioned above the
next position to be machined
Last positioning block in the
working plane must contain both
coordinates of the working plane
RND block is scaled, the result is
an ellipse
Error message is issued
TNC 320 | User's Manual HEIDENHAIN Conversational Programming | 5/2013
iTNC 530
Q60 to Q99 (or QS60 to QS99)
are local or global, depending
on MP7251 in converted cycle
programs (.cyc). Nested calls may
cause problems
Block with R0
DEP block
PGM CALL
Programming of Cycle 10
ROTATION
Program selection
Consideration of tool radius
compensation
Tool shape compensation is
supported
The tool is positioned above
the last position that has been
completely machined
Last positioning block in
the working plane does not
necessarily need to contain both
coordinates of the working plane.
Can cause problems with RND or
CHF blocks
Error message is issued
Error message is issued if a
contour element with length 0 is
located before the RND or CHF
block
Contour element with length 0
is ignored if the contour element
with length 0 is located after the
RND or CHF block