Siemens SINUMERIK 840D sl Programming Manual page 380

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Table of Contents

Path traversing behavior

9.3 Curve tables (CTAB)

Principal functions

Machine manufacturer

To create curve tables the memory space must be reserved by setting the machine data.

Example of using CTABDEF and CTABEND

A program section is to be used unchanged for defining a curve table. The command for

preprocess stop STOPRE can remain and is active again immediately as soon as the

program section is not used for table definition and CTABDEF and CTABEND have been

CTABDEF(Y,X,1,1)

IF NOT ($P_CTABDEF)

Define beginning of curve table.

Define end of curve table.

Deleting all curve tables, irrespective of the memory type.

Following axis

Axis that is programmed via the curve table.

Leading axis

Axis that is programmed with the master value.

Number of curve table; n < m, e.g., in CTABDEL(n, m)

The number of the curve table is unique and not dependent on

the memory type. Tables with the same number can be in the

SRAM and DRAM.

Identifier for table periodicity:

Table is not periodic

Table is periodic with regard to the leading axis

Table is periodic with regard to leading axis and following

Optional specification of memory type of the NC: "DRAM" /

If no parameter is programmed for this value, the standard

memory type set with MD 20905: CTAB_DEFAULT_MEMORY_TYPE is

;Definition of a curve table

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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