HEIDENHAIN iTNC 530 User Manual page 646

Addresses
H Polar coordinate angle
H Rotation angle with G73
H Tolerance angle with M112
I X coordinate of the circle center/pole
J Y coordinate of the circle center/pole
K Z coordinate of the circle center/pole
L Set a label number with G98
L Jump to a label number
L Tool length with G99
M M functions
N Block number
P Cycle parameters in machining cycles
P Value or Q parameter in Q-parameter definition
Q Q parameter
R Polar coordinate radius
R Circular radius with G02/G03/G05
R Rounding radius with G25/G26/G27
R Tool radius with G99
S Spindle speed
S Oriented spindle stop with G36
T Tool definition with G99
T Tool call
T Next tool with G51
U Axis parallel to X axis
V Axis parallel to Y axis
W Axis parallel to Z axis
X X axis
Y Y axis
Z Z axis
* End of block
Contour cycles
Sequence of Program Steps for Machining
with Several Tools
List of subcontour programs
Define contour data
Define/Call drill
Contour cycle: pilot drilling
Cycle call
Define/Call roughing mill
Contour cycle: rough-out
Cycle call
Define/Call finishing mill
Contour cycle: floor finishing
Cycle call
Define/Call finishing mill
Contour cycle: side finishing
Cycle call
End of main program, return
Contour subprograms
Radius compensation of the contour subprograms
Contour Programming Sequence
of the Contour Elements
Internal Clockwise (CW)
(pocket) Counterclockwise (CCW)
External Clockwise (CW)
(island) Counterclockwise (CCW)
G37 P01 ...
G120 Q1 ...
G121 Q10 ...
G122 Q10 ...
G123 Q11 ...
G124 Q11 ...
M02
G98 ...
G98 L0
Radius
Compensation
G42 (RR)
G41 (RL)
G41 (RL)
G42 (RR)