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M200 Stop and show a message
Centroid CNC12 Acorn M-code · Mill and lathe
Pauses the job and shows a message box until CYCLE START. The text can include variables like printf. With M0 jogging unlocked the operator can jog.
Format
M200 "TEXT" [#var]
Addresses
| Address | What it does |
|---|---|
TEXT | Message in quotes, up to 1024 characters |
#var | Variables for each percent sign |
How it works
One shot.
Example program
G0 Z1. ; CLEAR
M5 M9 ; SPINDLE AND COOLANT OFF
M200 "FLIP THE PART AND PRESS CYCLE START"
M5 M9 ; SPINDLE AND COOLANT OFF
M200 "FLIP THE PART AND PRESS CYCLE START"
Example is in inch. Check offsets and clearances first.
Watch out for
- A message is much clearer than a bare M0. Tell the operator what to do.
- Use %f for a number, %s for a string variable, %c for a letter.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M200 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Tool load monitor off |
| DMG Mori MAPPS (Fanuc) | Chip conveyor start (forward direction) |
| Mazak (EIA) | Milling point machining start |
| Hurco WinMax (NC) | Tilt axis preference |
| Swiss (Citizen Star) | Waiting M code (Star) |
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