Siemens SINUMERIK 840D

10
08.97 Motion-Synchronous Action
10.4 Actions within s
y
nchronized actions
10
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di

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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
10-365
Notes
•
The system variables can be written from the part
program or from a synchronized action. When
writing from part programs, program STOPRE to
ensure that writing is block synchronized.
•
SW 4 and higher:
The system variables $AC_FCTLL[n],
$AC_FCTUL[n], $AC_FCT0[n] to $AC_FCTn[n] can
be modified from within synchronized actions
(not SINUMERIK FM-NC,
not SINUMERIK 840D with NCU 571).
When writing form synchronized actions, the
polynomial coefficients and function value limits are
active immediately.
Programming example
Polynomial for straight section:
With upper limit 1000, lower limit –1000, ordinate
section a
0
=$AA_IM[X] and linear gradient 1 the
polynomial is:
Upper limit
1000
Lower limit
-1000
X
f (X)
a
a
0
1
FCTDEF(1, -1000,1000,$AA_IM[X],1)