Siemens SINUMERIK 840D sl Function Manual page 106

Detailed description
3.7 Actions in synchronized actions
<NO>:
<OVW>:
● Synchronized actions can be used to change the basic curve table without a
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.
● In order to be able to program an axis to be coupled via synchronized actions, the axis must
first be released with the RELEASE command.
Example:
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.
Program code
N100 R3=1500
N200 R2=100000 R13=R2/300
N300 R4=100000
N400 R6=30
N500 R1=1
N600 LEADOF(Y,X)
N700 CTABDEF(Y,X,1,0)
N800 X=30 Y=30
N900 X=R13 Y=R13
N1000 X=2*R13 Y=30
N1100 CTABEND
N1200 PRESETON(X1,0)
N1300 Y=R6 G0
106
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
Comment
; Length of a part to be cut off
; Start position Y axis
; Start condition for conveyor axis
; Delete coupling
; Table definition
; Value pairs
; End of table definition
; PRESET at beginning
; Start position Y axis, axis is linear
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Synchronized actions