Supplementary Conditions; Stopre In The Target Block - Siemens SINUMERIK 840D sl Function Manual

K1: Mode group, channel, program operation, reset response
9.8 Block search Type 5 (SERUPRO)
9.8.8

Supplementary conditions

9.8.8.1

STOPRE in the 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.
Program code
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 calculate the current zero
offset.
For a SERUPRO operation on the N50 search target, repositioning is on the implicit STOPRE
in the SERUPRO approach and the velocity is determined from N40 with F5000.
516
Comment
;
;
;
;
; move external zero offset after 200
;
;
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions