CNC Machinist Calculator UltraM20 Cycle general purpose indexer
Fadal M-code · Mill
Sends an index signal to a general purpose indexer. On some machines it is also used for auto doors or Hydrosweep.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
M20
How it works
Non modal.
Example program
N10 G0 Z1. M9
N11 M20 (INDEX THE FIXTURE)
N12 G4 P1000
N11 M20 (INDEX THE FIXTURE)
N12 G4 P1000
Example is in inch. Check offsets and clearances first.
Watch out for
- What M20 does depends on the machine options. Check your machine before use.
Related codes
M20 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Gantry loader call |
| DMG Mori MAPPS (Fanuc) | Automatic power shut off |
| Mazak (EIA) | Robot service call |
| Okuma OSP | Tailstock Barrier OFF |
| Hurco WinMax (NC) | Pulse indexer one step |
| Swiss (Citizen Star) | C axis off (Citizen) |
Every M-code for Fadal in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.
Open M20 in the app All Fadal M-codes