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M21 Robot service call
Mazak (EIA) M-code · Mill and lathe
Send a request signal to the robot for a service operation (call 2).
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 |
| Doosan (Fanuc) | Optional block skip act |
| DMG Mori MAPPS (Fanuc) | External output |
| Okuma OSP | Tailstock Barrier ON |
Every M-code for Mazak (EIA) 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 Mazak M-codes