Siemens SINUMERIK 840D Function Manual page 439

● applim:
Behavior at the curve table edges.
– 0 non-periodic (table is processed only once, even for rotary axes).
– 1 periodic, modulo (the modulo value corresponds to the LA table values).
– 2 periodic, modulo (LA and FA are periodic).
● Master value
Position value for which a following value is to be determined.
● Slave value
Position value for which a master value is to be calculated.
● aproxmastervalue
Position value that can be used to determine a unique master value in the case of an
ambiguous reversing function of the curve table.
● degrees
Parameter in which the pitch of the table function is returned.
● memType
Optional parameter for specifying memory type to be used n curve tables.
Possible values:
"SRAM" curve table is created in static NC memory.
"DSRAM" curve table is created in dynamic NC memory.
If an invalid type is entered, the value -2 is returned.
If the parameter is omitted, then the memory type set via the following machine data takes
effect:
MD20905 $MC_CTAB_DEFAULT_MEMORY_TYPE (default memory type for curve
tables)
● segType
Optional parameter for entry of segment type
Possible values:
segType "L" linear segments
segType "P" Polynomial segments
Further information
Programming Manual Advanced; Axis couplings, curve tables (CTAB)
Restrictions
The following restrictions apply when programming:
● It is not permissible that the NC block generates a preprocessing stop.
● No discontinuities may occur in leading axis motion.
● Any block that contains a traverse instruction for the following axis must also include a
traverse for the leading axis.
● The direction of motion of the leading axis must not reverse at any point in the rule of motion,
i.e. the position of the leading axis must always be unique within the sequence of motions.
The programmed contour may not move perpendicular to the leading axis.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
M3: Coupled axes
14.2 Curve tables
439