Fanuc subprogram- M98 and M99

Use of Subprogram – M98and M99

                         This type of program used to make program length short. A subprogram is widely used in mass production manufacturing industries.

Example:

 

Normal Program:

 

POINT	X COORDINATE	Z COORDINATE
1	62.0	2.0
2	18.0	2.0
3	18.0	0.0
4	20.0	-1.0
5	20.0	-20.0
6	40.0	-30.0
7	40.0	-60.0
8	50.0	-65.0
9	60.0	-65.0
10	62.0	-65.0

 

 

O0001;

N1;

T0000;

G28 X0.0 Z0.0;

T0505;

G92 S1200 M03;

G96 S95;

G00 X62.0 Z2.0;

M07;

G42;

G71 U1.0 R1.0;

G71 P10 Q20 U0.0 W0.0 F0.1;

N10 G00 X18.0;

G01 Z0.0 F0.1;

G01 X20.0 Z-1.0 F0.1;

G01 Z-20.0 F0.1;

G01 X40.0 Z-30.0 F0.1;

G01 Z-60.0 F0.1;

G02 X50.0 Z-65.0 R5.0 F0.1;

G01 X60.0 F0.1;

N20 G01 X62.0 F0.3;

G00 Z10.0;

G40;

M05;

M09;

G97;

T0000;

G28 X0.0 Z0.0;

M30;

 

First create subprogram:

O0002;

G00 x18.0;

G01 X20.0 Z-1.0 F0.1;

G01 Z-20.0 F0.1;

G01 X40.0 Z-30.0 F0.1;

G01 Z-60.0 F0.1;

G02 X50.0 Z-65.0 R5.0 F0.1;

G01 X60.0 F0.1;

M99;

 

Program by using Subprogram: 

O0001;

N1;

T0000;

G28 X0.0 Z0.0;

T0505;

G92 S1200 M03;

G96 S90;

G00 X62.0 Z2.0;

M07;

G42;

M98 P0002; ------------------    [M98- subprogram call, P0002-                                                              subprogram number]

G00 X62.0;

G00 Z10.0;

G40;

M05;

M09;

G97;

T0000;

G28 X0.0 Z0.0;

M30;