HEIDENHAIN TNC 320 (340 55x-05) ISO programming User Manual

Page 475

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*) Non-modal function

Define machining plane

G17
G18
G19
G20

Working plane X/Y, tool axis Z
Working plane Z/X, tool axis Y
Working plane Y/Z, tool axis X
Tool axis IV

Dimensions

G90
G91

Absolute dimensions
Incremental dimensions

Unit of measure

G70
G71

Inches (set at start of program)
Millimeters (set at start of program)

Other G functions

G29

G38
G51*
G79*
G98*

Transfer the last nominal position value as a pole
(circle center)
STOP program run
Next tool number (with central tool file)
Cycle call
Set label number

Addresses

%
%

Program beginning
Program call

#

Datum number with G53

A
B
C

Rotation about X axis
Rotation about Y axis
Rotation about Z axis

D

Q-parameter definitions

DL
DR

Length wear compensation with T
Radius wear compensation with T

E

Tolerance with M112 and M124

F
F
F
F

Feed rate
Dwell time with G04
Scaling factor with G72
Factor for feed-rate reduction F with M103

G

G Functions

H
H
H

Polar coordinate angle
Rotation angle with G73
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

G Functions

L
L
L

Set a label number with G98
Jump to a label number
Tool length with G99

M

M functions

N

Block number

P
P

Cycle parameters in machining cycles
Value or Q parameter in Q-parameter definition

Q

Q parameter

R
R
R
R

Polar coordinate radius
Circular radius with G02/G03/G05
Rounding radius with G25/G26/G27
Tool radius with G99

S
S

Spindle speed
Oriented spindle stop with G36

T
T
T

Tool definition with G99
Tool call
Next tool with G51

U
V
W

Axis parallel to X axis
Axis parallel to Y axis
Axis parallel to Z axis

X
Y
Z

X axis
Y axis
Z axis

*

End of block

Addresses

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