Conditionally Interruptible Program Sections (Delayfston, Delayfstof) - Siemens Sinumerik 840D sl Programming Manual

Path traversing behavior

8.4 Conditionally interruptible program sections (DELAYFSTON, DELAYFSTOF)

8.4 Conditionally interruptible program sections (DELAYFSTON,
DELAYFSTOF)
Function
Conditionally interruptible part program sections are called stop delay sections. No stopping
should occur and the feed should not be changed within certain program sections.
Essentially, short program sections - e.g. for machining a thread - should be protected from
almost all stop events. Stops do not take effect until the program section has been completed.
Syntax
DELAYFSTON
DELAYFSTOF
The commands are programmed separately in a part program line.
Both commands are only permitted in part programs but not in synchronous actions.
Significance
DELAYFSTON
DELAYFSTOF
Note
For machine data MD11550 $MN_STOP_MODE_MASK Bit 0 = 0 (default), a stop delay
section is implicitly defined if G331/G332 is active and a path motion or G4 is
programmed.
Example: Stop events
In the stop delay section, a change in the feedrate and feedrate inhibit are ignored. They only
become effective after the stop delay section.
Stop events are divided into:
"Soft" stop events
"Hard" stop events
478
Define a start of a range in which "soft" stops are delayed up to the end
of the stop delay section.
Define the end of the stop delay section
Response: delayed
Response: immediate
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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