Path traversing behavior
9.6 Program run with preprocessing memory (STARTFIFO, STOPFIFO, STOPRE)
Job planning
9-42 Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
9.6 9.6 Program run with preprocessing memory (STARTFIFO, STOPFIFO,
STOPRE)
Function
Depending on its expansion level, the control system has a certain quantity of so-called
preprocessing memory in which prepared blocks are stored prior to program execution and
then output as high-speed block sequences while machining is in progress.
These sequences allow short paths to be traversed at a high velocity.
Provided that there is sufficient residual control time available, the preprocessing memory is
always filled.
3URGXFWLRQSURFHGXUHIDVWEORFNVHTXHQFH
3UHSUR
FHVVLQJ
PHPRU\
1&3URJUDP
Programming
STARTFIFO
or
STOPFIFO
or
STOPRE
Parameters
STOPFIFO Stop high-speed processing section, fill preprocessing memory,
until STARTFIFO, "Preprocessing memory full" or "End of
program" is detected.
STARTFIFO Start of high-speed processing section, in parallel to filling
the preprocessing memory
STOPRE Preprocessing stop
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