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M1 Optional program stop
Heidenhain TNC (ISO) M-code · Mill
Stops the program only when optional stop is switched on at the panel. Spindle and coolant stop.
Format
M1
Addresses
| Address | What it does |
|---|---|
M1 | No addresses |
How it works
Non-modal. Acts at end of block.
Example program
N70 G00 Z+100 *
N80 M1 *
N90 T2 G17 S3000 *
N80 M1 *
N90 T2 G17 S3000 *
Example is in inch. Check offsets and clearances first.
Watch out for
- Good before a new tool to check the first part.
Related codes
M1 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Optional stop |
| Haas NGC | Optional stop |
| Doosan (Fanuc) | Optional program stop |
| DMG Mori MAPPS (Fanuc) | Optional stop |
| Mazak (EIA) | Optional stop |
| Okuma OSP | Optional Stop (Lathes & Mills) |
| Mitsubishi M70 M80 | Optional stop |
| Brother Speedio | Optional stop |
| Siemens 840D 828D | Optional stop |
| Fagor 8055 8065 | Optional stop |
| LinuxCNC Tormach | Optional pause |
| Mach3 Mach4 | Optional stop |
| Centroid CNC12 Acorn | Optional stop |
| Hurco WinMax (NC) | Optional stop |
| Fadal | Optional stop |
| Swiss (Citizen Star) | Optional stop |
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