HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 249)

HEIDENHAIN TNC 128 249
9.2 Miscellaneous functions f
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9.2 Miscellaneous functions for
program run control, spindle
and coolant
Overview
The machine tool builder can influence the behavior of the
miscellaneous functions described below. Refer to your
machine manual.
M Effect Effective at block... Start End
M0 Stop program run
Spindle STOP 
M1 Optional program STOP
Spindle STOP if necessary
Coolant OFF if necessary (not
effective during Test Run, function
determined by the machine tool
builder) 
M2 Stop program run
Spindle STOP
Coolant OFF
Go to block 1
Clear the status display (depends on
the clearMode machine parameter) 
M3 Spindle ON clockwise 
M4 Spindle ON counterclockwise 
M5 Spindle STOP 
M6 Tool change
Spindle STOP
Program STOP 
M8 Coolant ON 
M9 Coolant OFF 
M13 Spindle ON clockwise
Coolant ON 
M14 Spindle ON counterclockwise
Coolant ON 
M30 Same as M2 