PROFINET Communication
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When information in the following figure is displayed, the device name is
written and consistent with that in the " Configured PROFINET device"
section in the preceding figure. After assignment, close the page or select
another name from the drop‑down list of "PROFINET device name" to assign
a name for another site.
The slave station saves the assigned name. The master station distinguishes
slave stations by their names (the MAC addresses are not intuitive enough to
distinguish slave stations. The device name is bound to its MAC address).