Siemens SINUMERIK 840D sl Programming Manual page 1289

Polynomial functions
Identifier Parameter
SYNFCT 1.
INT:
Number of
the polyno‐
mial func‐
tion defined
with
FCTDEF
FTOC 1.
INT:
Number of
the polyno‐
mial func‐
tion defined
with
FCTDEF
* Only special system variables are permissible as a result variable (see Function Manual Synchronized Actions).
)
** Only special system variables are permissible as input variable (see Function Manual Synchronized Actions).
)
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
2. 3.
VAR REAL: VAR REAL:
Result vari‐ Input varia‐
able * ble **
) )
2. 3.
VAR REAL: INT:
Input varia‐ Length
ble ** 1, 2, 3
)
4.5 Predefined procedures in synchronized actions
4. 5.
INT: INT:
Channel Spindle
number number
Tables
Explanation
If the condition in the motion-
synchronous action is fulfilled,
the polynomial determined by
the first expression is evaluated
at the input variable. The upper
and lower range of the value is
limited and the result variable is
assigned.
Change of fine tool compensa‐
tion depending on a function de‐
fined with FCTDEF (max. 3rd
degree polynomial).
The number used here must be
specified in FCTDEF.
1289