Special Features In The Part-Program Target Block; Stopre In The Part-Program Target Block - Siemens SINUMERIK 828D Function Manual

K1: Mode group, channel, program operation, reset response
9.8 Block search Type 5 SERUPRO
9.8.6

Special features in the part-program target block

9.8.6.1

STOPRE in the part-program target block

STOPRE block
The STOPRE block receives all modal settings from the preceding block and can, therefore, apply conditions in
advance in relation to the following actions:
• Synchronize program line currently processing with the main run.
• Derive modal settings for SERUPRO in order, for example, to influence this REPOS motion on approach of
SERUPRO.
Example 1:
Position a Z axis by specifying an X axis setpoint.
When block "G1 F100 Z=$AA_IM[X]" is interpreted, the preceding STOPRE block ensures synchronization with
the main run. The correct setpoint of the X axis is thus read via $AA_IM to move the Z axis to the same position.
Example 2:
Read and correctly calculate external zero offset.
N10 G1 X1000 F100
N20 G1 X1000 F500
N30 G1 X1000 F1000
N40 G1 X1000 F5000
N50 SUPA G1 F100 X200
N60 G0 X1000
N70 ...
Via an implicit STOPRE before N50, the NCK can read and correctly and correctly compute the current zero
offset.
For a SERUPRO operation on the search target N50 repositioning occurs in the SERUPRO approach to the
implicit STOPRE and the speed is determined from N40 with F5000.
546
;
;
;
;
; move external zero offset after 200
;
;
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions