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06 Mar SUMMARY OF M-CODES

Posted at 18:58h in Articles, Misc, Support by

SUMMARY OF M-CODES

Summary of M-Codes All MachMotion CNC controls use the Mach3 or Mach4 software. Use the M-code list below as a reference.

Mach 3 G-Code Language Reference
Mach 4 G- and M-Code Language Reference

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M Code List

M-code
Functions
M0
Program stop
M1
Optional program stop
M3/M4
Rotate spindle clockwise / counterclockwise
M5
Stop spindle rotation
M6
Tool change (by two macros)
M7
Mist on
M8
Flood on
M9
Mist & flood off
M30
Program end and rewind
M47
Repeat program from first line
M48
Enable speed and feed override
M98
Call subroutine
M99
Return from subroutine/repeat
Custom M-code*
Functions
M200
Output 5 on
M201
Output 5 off
M202
Output 6 on
M203
Output 6 off
M204
Output 7 on
M205
Output 7 off
M206

Output 8 on

M207
Output 8 off
M208
Output 9 on
M209
Output 9 off
M210
Output 10 on
M211
Output 10 off
M212
Output 11 on
M213
Output 11 off
M214
Output 12 on
M215
Output 12 off

*These custom M-codes are used to control the relay outputs on the breakout board. Outputs 5-12 must be enabled with the port set to 2 and the pin set to the corresponding relay on the breakout board (R4 = pin 4).

A
A axis of machine
B
B axis of machine
C
C axis of machine
D
Tool radius compensation number
F
Feedrate
G
See G-codes table
H
Tool length offset index
I
X axis offset for arc
X offset in G87 canned cycle
J
Y axis offset for arcs
Y offset in G87 canned cycle
K
Z axis offset for arcs
Z offset in G87 canned cycle
L
Number or repetitions in canned cycles/subroutines
L1/L2: tool offset settings / fixture offset (with G10)
M
See M-codes
N
Line number
O
Subroutine label number
P
Dwell time in a canned cycle
Dwell time with G4
Tool / Fixture number (with G10)
Tool radius (with G41 / G42
Q
Feed increment in G83 canned cycle
Repetitions of subroutine call
R
Arc radius
Canned cycle retract level
S
Spindle speed
T
Tool selection
X
X axis of machine
Y
Y axis of machine
Z
Z axis of machine

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