Siemens SINUMERIK 828D Function Manual page 106

Detailed description
2.7 Actions in synchronized actions
Master value coupling
Syntax
... DO LEADON(<FA>, <LA>, <NO>, <OVW>)
Meaning
<FA>
<LA>
<NO>
<OVW>
● Synchronized actions can be used to change the basic curve table without a
● In order to be able to program an axis to be coupled via synchronized actions, the axis
Program code
...
N60 RELEASE(X)
N50 ID=1 EVERY SR1==1 DO LEADON(C, X, 1)
Example: On-the-fly parting
An extruded material which passes continuously through the operating area of a cutting tool
must be cut into parts of equal length.
● X axis: Axis in which the extruded material moves (WCS)
● X1 axis: Machine axis of the extruded material (MCS)
● Y axis: Axis in which the cutting tool "tracks" the extruded material
It is assumed that the infeed and control of the cutting tool are controlled via the PLC user
program. The signals at the PLC interface can be evaluated to determine whether the
extruded material and cutting tool are synchronized.
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resynchronization even during an active master value coupling.
The following axis attempts as fast as possible to follow the position values specified by
the new curve table.
must first be released with the
Example:
Identifier of the following axis
Type: AXIS
Identifier of the leading axis
Type: AXIS
Number of the curve table
Type: INT
Status of the overwrite permission
Type: BOOL
0: Overwriting of the table is not permitted
1: Overwriting of the table is permitted
command.
RELEASE
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
Synchronized actions