Beckhoff EPP3504-0023 Short Manual page 174

Commissioning on EtherCAT Master
Scan over existing Configuration
Change of the configuration after comparison
With this scan (TwinCAT 2.11 or 3.1) only the device properties vendor (manufacturer), device name and
revision are compared at present! A "ChangeTo" or "Copy" should only be carried out with care, taking into
consideration the Beckhoff IO compatibility rule (see above). The device configuration is then replaced by
the revision found; this can affect the supported process data and functions.
If a scan is initiated for an existing configuration, the actual I/O environment may match the configuration
exactly or it may differ. This enables the configuration to be compared.
Fig. 135: Identical configuration (left: TwinCAT 2; right: TwinCAT 3)
If differences are detected, they are shown in the correction dialog, so that the user can modify the
configuration as required.
Fig. 136: Correction dialog
It is advisable to tick the "Extended Information" check box to reveal differences in the revision.
Color Explanation
green This EtherCAT slave matches the entry on the other side. Both type and revision match.
blue This EtherCAT slave is present on the other side, but in a different revision. This other revision can
have other default values for the process data as well as other/additional functions.
If the found revision is higher than the configured revision, the slave may be used provided
compatibility issues are taken into account.
If the found revision is lower than the configured revision, it is likely that the slave cannot be used.
The found device may not support all functions that the master expects based on the higher
revision number.
light This EtherCAT slave is ignored ("Ignore" button)
blue
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NOTE
Version: 1.2 EPP3504-0023