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

M3: Coupled axes
5.5 Generic coupling
5.5.2.3

System variables

The current state of a coupling characteristic set with a keyword, can be read and written to
with the relevant system variable.
Note
When writing in the part program, PREPROCESSING STOP is generated.
Notation
The names of system variables are normally derived from the relevant keywords and a
corresponding prefix.
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 (refer to " System variables [Page 358] ").
For a detailed description of system variables, refer to:
References:
/PGA1/ List Manual System Variables
5.5.3

Creating/deleting coupling modules

5.5.3.1

Creating a coupling module (CPDEF)

An axial coupling module is created through the definition of the following axis.
276
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).
Features
Use in synchronous actions is not
possible.
Does not generate an implicit
preprocessing stop.
Use in the part program and in
synchronous actions is possible.
Generates an implicit
preprocessing stop when used in
the part program.
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions