M Functions Of Spindle Control - Siemens Sinumerik 840D sl Programming Manual

Motion commands
3.5 S-, T-, M- and B functions
M00 (program stop)
The machining is stopped in the NC block with M00. One can now, e.g., remove chips, re-
measure, etc. A signal is output to the PLC. The program can be continued with NC start.
M01 (optional stop)
M01 can be set via
● HMI/dialog box "Program control" or the
● VDI interface
The program processing of the NC is maintained with M01 only if the corresponding signal of
the VDI interface is set or "Program control" was selected in the HMI/dialog box.
M30 or M02 (end of program)
A program is ended with M30 or M02.
Note
A signal is output to the PLC with M00, M01, M02 or M30.
Note
Data on whether spindle is stopped with the commands M00, M01, M02 or M30 or the
coolant supply is interrupted is available in the documentation of your machine manufacturer.
3.5.4

M functions of spindle control

Table 3- 12
M function
M19
M29
The spindle is traversed to the spindle position defined in the setting data 43240
$SA_M19_SPOS[spindle number] with M19. The positioning mode is stored in
$SA_M19_SPOS.
The M function number for the changeover of the spindle mode (M29) can also be set over a
machine data variable. MD20095 $MC_EXTERN_RIGID_TAPPING_N_NR is used to pre-set
the M function number. Only the M function numbers that are not used as standard M
functions can be assigned. For example, M0, M5, M30, M98, M99 etc are not allowed.
66
M functions of spindle control
Function
Positioning the spindle
Changeover of spindle to the axis/open-loop control mode
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling