General Programming Functions

In this section, we will discuss some of the commonly used functions that need to be used in a program.

Units

1. G20 or G70 for inch units
2. G21 or G71 for mm units

Feed Specification

1. G98    feed in mm/min or inch/min
2. G99    feed in mm/rev or inch/rev.

Speed Function

1. G96    Surface speed in m/min or feet/min
2. G97    Speed in rev/min

Tool Function

Program Number

Block Number

Miscellaneous Functions

1. M00-Program Stop
2. M01-Optional Stop
3. M02-End of Program
4. M03-Spindle Start in Clockwise
5. M04-Spindle Start in Counter Clockwise
6. M05-Spindle Stop
7. M08-Coolant ON
8. M09-Coolant OFF
9. M13-Main Spindle Clockwise/Coolant ON
10. M14-Main Spindle Counter Clockwise/Coolant ON
11. M30-End of Program and Rewind