Siemens SIMATIC S7-1500T - Page 34

8 Example Application
8.2 Technology objects used
TOs of S7-1500(T)
Entry ID: 109743134, V1.0, 05/2017
34
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Note
The shape of the cam disc is defined in the TIA Portal via the cam disc editor in
the coordinate system of the cam disc. This coordinate system can be defined in
the cam disc editor via the extension of the coordinate axis for the master axis
(x) and the slave axis (f(x)).
The adjustment of the cam disc to the coordinate system of the axes is only
specified when using the cam disc in the user program.
Figure 8-3 Cam disc used in the application
The individual cam disc segments have the following function in the example
application, whereby the products passing through present the master axis (x) and
the sealing unit presents the slave axis (f(x)):
Table 8-4 Composition of the cam disc
Segment
type
Start
End
Comment
x
f(x)
x
f(x)
Straight line
(1)
0
0
5
0
Rest of the slave axis.
The slave axis remains in position
f(x)=0 during the movement of the
master axis.
This position represents the basic
position of the slave axis in the
application, i.e. the sealing unit.
Transition
(2)
5
0
15
15
Fast positioning of the sealing unit.
With this movement the sealing unit
is positioned above the passing
through product.
1
2
3
4
5