5 Switching, Auxiliary and Miscellaneous Functions 01.93
5.2 Miscellaneous function M
M2 End of program
M02 signals the end of the program and resets the program to the beginning. It is written in
the last block of the program. The control is reset. M02 can be written in a separate block or in
a block containing other functions. The read-in process can be stopped with M02 (setting
data). A subroutine call and M02 must not be programmed in the same block. M02 must not
be programmed when G81...G89 is active.
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When using the ”EXECUTION FROM EXTERNAL SOURCE” function,
execution is terminated with M02/M30, the associated interface is halted
and the rest of the executed program is deleted.
M17 End of subroutine
M17 is written in the last block of a subroutine. It can be written in a separate block or in a
block containing other functions. M17 must not be written in the same block as a subroutine.
M17 must not be programmed when G81...G89 is active.
M30 End of program
Function M30 is the same as M02. A subroutine call and M30 must not be programmed in the
same block. M30 must not be programmed when G81...G89 is active.
M03, M04, M05, M19 Main spindle control
(M19 only with pulse encoder at main spindle)
In the version with analog spindle speed output the following M words are fixed for spindle
control:
M03 Clockwise spindle direction of rotation
M04 Counter-clockwise spindle direction of rotation
M05 Non-oriented spindle stop
M19 Oriented spindle stop
An extended address notation with output of the spindle number (dependent on the type of
control) is available for miscellaneous functions in this group:
M function 19 (spindle positioning)
M2=19 S2=135
Angle under S . .
Spindle number
Angle
M19 S.. can be used to perform an oriented main spindle stop. The relevant angle is program-
med under S in degrees. The angle is measured from the zero mark in the clockwise direction
of rotation. The action of the angle programmed under address S is modal. If M19 is program-
med without S, the value stored under S is valid for the angle, i.e. a repeated stop can be ef-
fected simply by programming M19. The angle can also be input via the operator panel under
“Spindle setting data”. A machine data can specify whether M19 has to be acknowledged be-
fore the axis motion programmed in the next block is started or whether the next block is en-
5–2
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02
SINUMERIK 880, (PG)
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