Siemens SINUMERIK 840D sl Programming Manual page 546

Path traversing behavior
8.4 Conditionally interruptible program sections (DELAYFSTON, DELAYFSTOF)
Example: Program excerpt
The following program block is repeated in a loop:
As shown in the diagram, the user presses "Stop" in the stop delay section and the NC starts
deceleration outside the stop delay section, i.e., in block N100. That causes the NC to stop
at the beginning of N100.
Program code
...
N99 MY_LOOP:
N100 G0 Z200
N200 G0 X0 Z200
N300 DELAYFSTON()
N400 G33 Z5 K2 M3 S1000
N500 G33 Z0 X5 K3
N600 G0 X100
N700 DELAYFSTOF()
N800 GOTOB MY_LOOP
Details on SERUPRO type block searches and feeds in conjunction with G331/G332 Feed
for tapping without compensating chuck, see:
References:
Function Manual Basic Functions; Mode Group, Channel, Program Operation (K1)
Function Manual Basic Functions; Feedrates (V1)
546
Comments
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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