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M99 Fanuc style subprogram return

LinuxCNC Tormach M-code · Mill and lathe

Returns from a Fanuc style subprogram. Native LinuxCNC subroutines end with O-word ENDSUB or RETURN.

Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.

Format

M99

Addresses

AddressWhat it does
noneNo words

How it works

Non modal.

Example program

O100 SUB
G1 Z-0.1 F10
G0 Z0.1
O100 ENDSUB (NATIVE RETURN)

Example is in inch. Check offsets and clearances first.

Watch out for

Related codes

M98

M99 on other controls

The same number can mean something different on another control.

ControlMeaning
FanucSubprogram end and return
Haas NGCSubprogram return or loop
Doosan (Fanuc)End of sub program
DMG Mori MAPPS (Fanuc)Sub-program end Repeat program
Mazak (EIA)EIA → EIA Return to main EIA program
Okuma OSPSubprogram return (Lathes & Mills)
Mitsubishi M70 M80Subprogram end and return
Brother SpeedioSubprogram end
Heidenhain TNC (ISO)Cycle call in a positioning block
Mach3 Mach4Subprogram return
Centroid CNC12 AcornReturn from subprogram or macro
Hurco WinMax (NC)Subprogram return
FadalEnd of subprogram, or line jump
Swiss (Citizen Star)Subprogram return or program loop

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