Beckhoff EPI3 Series, Документация

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Commissioning/configuration of IO-Link master/device
EPI3xxx, ERI3xxx 32 Version: 1.2
5.1.2 Online configuration settings - TwinCAT (master)
In this part of the documentation is the configuration of a physically existing IO-Link master in TwinCAT
described.
Online configuration “Scan” (TwinCAT 3.x)
Distinction between Online and Offline
The distinction between online and offline refers to the presence of the actual I/O environment (drives,
terminals, box-modules).
• Offline
If the configuration is to be prepared in advance of the system configuration as a programming system,
e.g. on a laptop, this is only possible in “Offline configuration” mode. In this case all components have
to be entered manually in the configuration, e.g. based on the electrical design (as described under
1.
Importing the device description IODD [ } 53] ).
• Online
If the designed control system is already connected to the EtherCAT system and all components are
energized and the infrastructure is ready for operation, the TwinCAT configuration can simply be
generated through “scanning” from the runtime system. This is referred to as online configuration. In
any case, during each startup the EtherCAT master/ IO-Link master checks whether the devices it finds
match the configuration. This test can be parameterized in the extended device settings.
To take advantage of the current features/settings of the master, the latest version of the ESI file should
always be downloaded. Therefore it is necessary to consider the following note first.
Installation of the latest ESI-XML device description
The TwinCAT System Manager needs the device description files for the devices to be used in or-
der to generate the configuration in online or offline mode. The device description is contained in
the so-called ESI files (EtherCAT Slave Information) in XML format. These files can be requested
from the respective manufacturer and are made available for download. The ESI files for Beckhoff
EtherCAT devices are available on the
Beckhoff website . The ESI files should be saved in the Twin-
CAT installation directory (default: C:\TwinCAT\IO\EtherCAT). The files are read (once) when a new
System Manager window is opened. A TwinCAT installation includes the set of Beckhoff ESI files
that was current at the time when the TwinCAT build was created. For TwinCAT 2.11 and higher,
the ESI directory can be uploaded from the System Manager, if the programming PC is connected
to the internet (TwinCAT → EtherCAT-Devices → Update Device Description…) see following fig-
ure.