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M21 Optional block skip act
Doosan (Fanuc) M-code · Mill and lathe
Activate the optional block skip function, causing blocks preceded by a slash to be executed.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
M21 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Haas NGC | Tailstock advance |
| DMG Mori MAPPS (Fanuc) | External output |
| Mazak (EIA) | Robot service call |
| Okuma OSP | Tailstock Barrier ON |
Every M-code for Doosan (Fanuc) 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 M21 in the app All Doosan M-codes