Datalogic DL-Axist User Manual page 120

Datalogic Applications
remember that automatic discovery is restricted to discovering
devices only within your PC's subnet.
To configure a connected device, you simply click its button under
Available Devices to load its configuration into DXU.
To return to the DXU main window, click the Back button (generally, a
leftward pointing arrow in a circle).
Refresh
This button manually refreshes the display of currently connected
devices. This can overcome problems with the automatic display of
devices as they connect, and it can remove devices from the list that
are not currently connected.
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