Fanuc M Codes

Fanuc M Codes control the overall machine, causing it to stop, start, turn on coolant, etc. Where other codes pertain to the path traversed by cutting tools Different CNC machine tools may use the same code to perform different functions even machines that have the same Fanuc CNC control System

M00 program stop	M21 tool magazine right
M01 optional stop	M22 tool magazine left
M02 end of program (no rewind)	M23 tool magazine up
M03 spindle CW	M24 tool magazine down
M04 spindle CCW	M25 tool clamp
M05 spindle stop	M26 tool unclamp
M06 tool change	M27 clutch neutral ON
M07 mist coolant ON	M28 clutch neutral OFF
M08 flood coolant ON	M30 end program (rewind stop)
M09 spindle orientation ON	M98 call sub-program
M19 spindle orientation ON	M99 end sub-program

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