Festo CPX-FB38, Electronic Manual

Page: 72 / 120

2. Commissioning
2−36
Festo P.BE−CPX−FB38−EN en 0804NH
4. Click on Online"
4
to display the current input or output
data or the corresponding Value".
In the bottom part of the window, the current value is
displayed graphically: see
8
in Fig.2/6.
5. Click on Write"
5
to change the value.
The window Set Value Dialog"
6
is displayed.
6. Enter the required value.
7. Confirm your entry with OK"
7
.
8. The current value changes accordingly: see graphical
representation
8
. In this example, the Valves" of a
CPXterminal are set.
9. Check the execution of the value change directly at the
terminal.
2.4.4 Linking automation project (PLC project)
By means of its Inputs" and Outputs", i.e. registers and
objects, the PLC project forms the software interface between
the automation program and the inputs and outputs of the
EtherCAT network, i.e. the I/O Devices and Boxes".
The integration of an EtherCAT automation project into the
system environment, here Beckhoff TwinCAT, is implemented
using logical interconnections (links). For this purpose, the
particular hardware elements, I/O Devices and Boxes" are
linked to software elements (see example in Fig.2/7).
The varied functions and options of the TwinCAT system form
thereby the basis for EtherCAT automation projects providing
multitudinous optimization opportunities.
Example projects (Samples") and master projects (Tem
plates") are available in the TwinCAT directory of yoursystem
environment or using the TwinCAT help or the TwinCAT
Information System" (requires separate software installation).