Siemens sinumerik 840d Programming Manual page 75

02.98
1
840D 840D
NCU 571 NCU 572
NCU 573
Programming example
In this example, a broken tool is to be replaced
automatically by an alternate tool. Machining is
continued with the new tool. Machining is then
continued with the new tool.
Main program
N10 SETINT(1) PRIO=1 C_CHANGE ->
-> LIFTFAST
N20 G0 Z100 G17 T1 ALF=7 D1
N30 G0 X-5 Y-22 Z2 M3 S300
N40 Z-7
N50 G41 G1 X16 Y16 F200
N60 Y35
N70 X53 Y65
N90 X71.5 Y16
N100 X16
N110 G40 G0 Z100 M30
Subprogram
PROC C_CHANGE SAVE
N10 G0 Z100 M5
N20 T11 M6 D1 G41
N30 REPOSL RMB M3
-> programmed in a single block.
If you do not program any of the REPOS commands
in the subprogram, the axis is moved to the end of
the block that follows the interrupted block.
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
810D 840Di
Flexible NC Programming
1.14 Interrupt routine
When input 1 is enabled, the tool is
automatically retracted from the contour with
liftfast (code no. 7 for tool radius
compensation G41). Interrupt routine
C_CHANGE is subsequently executed.
Subprogram with storage of current
operating state
Tool changing position, spindle stop
Change tool
Repositioning and return to main
program
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