PROFINET Communication
‑102‑
In the topology view, click and drag the interface to the interface of another device
that is directly connected to this interface, and release the mouse button. Note that
the preceding connection must be consistent with the actual network connection of
devices. For example, if P1 of the PLC is connected to P2 of slave 1, and P1 of slave 1
is connected to another slave, the connections must be consistent in the topology. An
incorrect topology will cause function failure after replacement and even
communication errors. (After the MD500‑PN1 card is installed, P1 is on the left and P2
is on the right when facing the RJ45 interface.)
After completing the topology, start compiling and download the configuration to the
PLC.
Selecting the Support device replacement without exchangeable medium Option
and Setting Topology in STEP 7
In hardware configuration, double‑click PN-IO, as shown in the following figure.
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