HEIDENHAIN PROFINET - Manual (Page 24)

Configuration example
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3.3 Setting encoder device name
In a PROFINET network all IO devices needs to have a unique de-
vice name. The encoders are delivered without any device name
preset from the factory. To set the encoder device name, double
click on the encoder icon to open the Properties window.
Figure 8 How to set encoder device name
In the Properties window, enter an appropriate device name in the
Device name field.
Figure 9 Device name