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G functions and addresses addresses – HEIDENHAIN TNC 426B (280 472) ISO programming User Manual

Page 388

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G functions

Coordinate transformations

G53

Datum shift in datum table

G54

Datum shift in program

G28

Mirror image

G73

Rotation of the coordinate system

G72

Scaling factor (reduce or enlarge contour)

G80

Tilting the Working Plane

Cycles for multipass milling

G60

Running point tables (not TNC 410)

G230 Multipass milling of smooth surfaces

G231 Multipass milling of tilted surfaces

Special Cycles

* G04

Dwell time with F seconds

G36Oriented spindle stop

* G39

Program call

G62

Tolerance deviation for fast contour milling (not TNC 410)

Define machining plane

G17

Working plane: X/Y; tool axis: Z

G18

Working plane: Z/X; tool axis: Y

G19

Working plane: Y/Z; tool axis: X

G20

Tool axis IV

Dimensions

G90

Absolute dimensions

G91

Incremental dimensions

Unit of measure

G70

Inches (set at start of program)

G71

Millimeters (set at start of program)

Other G functions

G29

Transfer the last nominal position value as a pole (circle center)

G38

Program run STOP

* G51

Next tool number (with central tool file)

G55

Programmable probing function

* G79

Call the cycle

* G98

Set label number

*) Non-modal function

G functions

Tool movements

G00 Straight-line interpolation, Cartesian coordinates, rapid traverse

G01 Straight-line interpolation, Cartesian coordinates

G02 Circular interpolation, Cartesian coordinates, clockwise

G03 Circular interpolation, Cartesian coordinates, counterclockwise

G05 Circular interpolation, Cartesian coordinates, without indication of direction

G06Circular interpolation, Cartesian coordinates, tangential contour approach

* G07 Paraxial positioning block

G10 Straight-line interpolation, polar coordinates, rapid traverse

G11 Straight-line interpolation, polar coordinates

G12 Circular interpolation, polar coordinates, clockwise

G13 Circular interpolation, polar coordinates, counterclockwise

G15 Circular interpolation, polar coordinates, without indication of direction

G16 Circular interpolation, polar coordinates, tangential contour approach

Chamfer/Rounding/Approach contour/Depart contour

* G24

Chamfer with length R

* G25

Corner rounding with radius R

* G26Tangential contour approach with radius R

* G27

Tangential contour departure with radius R

Define the tool
* G99

With tool number T, length L, radius R

Tool radius compensation

G40

No tool radius compensation

G41

Tool radius compensation, left of the contour

G42

Tool radius compensation, right of the contour

G43

Paraxial compensation for G07, lengthening

G44

Paraxial compensation for G07, shortening

Blank form definition for graphics

G30

(G17/G18/G19) min. point

G31

(G90/G91) max. point

Drilling cycles

G83

Pecking

G84

Tapping with a floating tap holder

G85

Rigid tapping

G86Thread cutting (not TNC 410)

G200 Drilling

G201 Reaming

G202 Boring

G203 Universal drilling

G204

Back boring

G205 Universal peck drilling (only NC software 280 474-xx)

G206Tapping with floating tap holder (only NC software 280 474-xx)

G207 Rigid tapping (only NC software 280 474-xx)

G208 Bore milling (only NC software 280 474-xx)

Cycles for milling pockets, studs and slots

G74

Slot milling

G75

Rectangular pocket milling in clockwise direction

G76Rectangular pocket milling in counterclockwise direction

G77

Circular pocket milling in clockwise direction

G78

Circular pocket milling in counterclockwise direction

G210 Slot milling with reciprocating plunge

G211 Round slot with reciprocating plunge

G212 Rectangular pocket finishing

G213 Rectangular stud finishing

G214 Circular pocket finishing

G215 Circular stud finishing

Cycles for creating point patterns

G220 Circular pattern

G221 Linear pattern

SL cycles, group 1

G37

Contour geometry, list of subcontour program numbers

G56Pilot drilling

G57

Rough-out

G58

Contour milling in clockwise direction (finishing)

G59

Contour milling, counterclockwise (finishing)

SL cycles, group 2 (not TNC 410)

G37

Contour geometry, list of subcontour program numbers

G120 Contour data (applies to G121 to G124)

G121 Pilot drilling

G122 Rough-out

G123 Floor finishing

G124 Side finishing

G125 Contour train (machining open contour)

G127

Cylinder surface

G functions and addresses

Addresses

Add. Function

%

Start of program

%

Program call

#

Datum number with G53

A

Rotation about X-axis

B

Rotation about Y-axis

C

Rotation about Z-axis

D

Q-parameter definitions

DL Wear compens. of length with T
DR Wear compens. of radius with T

E

Tolerance with M112 and M124

F

Feed rate

F

Dwell time with G04

F

Scaling factor with G72

F

Reduction factor F with M103

G

G functions

H

Polar coordinate angle

H

Angle of rotation with G73

H

Max. permissible 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

Setting a label number
with G98

L

Jump to a label number

L

Tool length with G99

Add. Function

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

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29.06.2006, 08:07

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