Siemens sinumerik 840d Programming Manual page 394

Motion-Synchronous Action
10
10.7 Supplementary conditions
840D
840D
NCU 571
NCU 572
NCU 573
• Repositioning
On repositioning REPOS, the synchronized
actions that were active in the interrupted block
are reactivated.
Modal synchronized actions changed from the
asynchronized subroutine are not active after
REPOS when the rest of the block is executed.
Polynomial coefficients programmed with
FCTDEF are not affected by asynchronized
subroutines and REPOS. No matter where they
were programmed, they can be used at any time
in the asynchronized subroutine and in the main
program after execution of REPOS.
• Deselection with CANCEL
If an active synchronized action is deselected
with CANCEL, this does not affect the active
action. Positioning movements are terminated in
accordance with programming.
The CANCEL command is used to interrupt a
modally or statically active synchronized action.
If a synchronized action is cancelled while the
positioning axis movement that was activated
from it is still active, the positioning axis
movement is interrupted. If this is not required,
the axis movement can be decelerated before the
CANCEL command with axial deletion of
distance-to-go:
Example:
ID=17 EVERY $A_IN[3]==1 DO
...
WHEN ... DO DELDTG(X)
CANCEL(1)
10-394
FM-NC 810D 840Di
POS[X]=15 FA[X]=1500
;Start positioning axis movement
;End positioning axis movement
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
08.97
10
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