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Path traversing behavior

8.3 Program sequence with preprocessing memory (STOPFIFO, STARTFIFO, FIFOCTRL, STOPRE)

Job planning

466 Programming Manual, 07/2010, 6FC5398-2BP40-0BA0

Note

The preprocessing memory is not filled or filling is interrupted if the machining step contains

commands that require unbuffered operation (search for reference, measuring functions,

etc.).

Note

The control generates an internal preprocessing stop in the event of access to status data

($SA...).

CAUTION

If tool offset or spline interpolations are active, a

STOPRE command should not be

programmed, as this will lead to contiguous block sequences being interrupted.

Example: Stop preprocessing

Program code Comment

...

N30 MEAW=1 G1 F1000 X100 Y100 Z50 ; Measurement block with probe at first

measuring input and linear

interpolation.

N40 STOPRE ; Preprocessing stop.

...

Siemens SINUMERIK 828D Programming Manual

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