Creating/Deleting Coupling Modules; Creating A Coupling Module (Cpdef) - Siemens SINUMERIK 840D Function Manual

M3: Coupled axes
14.5 Generic coupling
The first letter of the prefix defines the access location when reading:
System variable prefix
$PA_CP
$AA_CP
Note
The preprocessing value of a $PA_CP.. CP system variable only differs from the values of the
corresponding $AA_CP.. CP system variable during active part program processing.
At the end of the program or with abort, there is an appropriate synchronization of the
preprocessing with the main run states.
System variable list
A list of all system variables which can be used in a generic coupling is contained in the data
lists (see Section "System variables (Page 575)").
The exhaustive description of the system variables can be found in:
Further information
List Manual System Variables
14.5.3

Creating/deleting coupling modules

14.5.3.1

Creating a coupling module (CPDEF)

An axial coupling module is created through the definition of the following axis.
Programming
Syntax:
Designation:
Functionality:
Following axis/
spindle:
500
Access location during read
Reading of channel referenced axis
specific coupling characteristics in
block preparation (Preparation)
Reading of the current state of the
coupling module (across channels).
CPDEF= (<following axis/spindle>)
Coupling Definition
Definition of a coupling module The coupling is not activated.
Type: AXIS
Features
Use in synchronous actions is not
possible.
Does not generate an implicit pre‐
processing stop.
Use in the part program and in syn‐
chronous actions is possible.
Generates an implicit preprocess‐
ing stop when used in the part pro‐
gram.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA