HEIDENHAIN PROFINET - Manual (Page 33)

Configuration example
33
Before the encoder can operate in IRT mode it is necessary to set
from which port of the encoder the connection to the network
has been done.
To set the topology double click on the port from which the en-
coder is connected to the network. This is either slot 0 sub slot P1
or slot 0 sub slot P2. In the example in figure 22 below Port 1 is
used on the encoder. For port description of the encoder see
chapter 2.2 Connectors and pin configuration.
Figure 22 Port settings
Under the Topology tab change the Partner port to the used port
of your IO controller.
Figure 23 Topology settings