Siemens Sinumerik 840D sl Programming Manual page 481

Program code
N500
N600
N700
N800
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)
Advantages of the stop delay section
A program section is processed without a drop in velocity.
If the user aborts the program after a stop with RESET, the aborted program block is after the
protected section. This program block is a suitable search target for a subsequent block
search.
The following main run axes are not stopped as long as a stop delay section is in progress:
• Command axes and
• Positioning axes that travel with POSA
Parts program command G4 is permitted in a stop delay section whereas other parts program
commands that cause a temporary stop (e.g., WAITM) are not permitted.
Example: Feedrate intervention
If the override is reduced to 6% before a stop delay section, the override becomes active in
the stop delay section.
If the override is reduced from 100% to 6% in the stop delay section, the stop delay section is
completed with 100% and beyond that the program continues with 6%.
The feed disable has no effect in the stop delay section; the program does not stop until after
the stop delay section.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
8.4 Conditionally interruptible program sections (DELAYFSTON,
G33 Z0 X5 K3
G0 X100
DELAYFSTOF()
GOTOB MY_LOOP
Path traversing behavior
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