CNC I/O requirements

Brown colored fonts are - OUTPUT
Green colored fonts are - INPUT

Spindle:

1. Clock Wise
2. Counter clock wise
3. Spindle index
4. PWM

Axis:

1. Step
2. Direction
3. Enable / Disable (recommended for stepper systems)
4. Home
5. Limits +ve
6. Limits -ve

Others:

1. Coolant Flood
2. Emergency Switch Input
3. Manual pulse generator (MPG)
4. Machine LAMP