Siemens SIMATIC S7-1500R/H Manuale - Pagina 27

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Connecting

3.1 Terminal assignment

PROFINET interface X1 with 2-port switch (X1 P1 R and X1 P2 R)

The assignment corresponds to the Ethernet standard for an RJ45 plug.

● When autonegotiation is deactivated, the RJ45 socket is allocated as a switch (MDI-X).

● When autonegotiation is activated, autocrossing is in effect and the RJ45 socket is

allocated either as data terminal equipment (MDI) or a switch (MDI-X).

Figure 3-1

PROFINET interface X2 with 1 port (X2 P1)

The assignment corresponds to the Ethernet standard for a RJ45 connector.

Autocrossing is always active on X2. This means the RJ45 socket is allocated either as data

terminal equipment (MDI) or a switch (MDI-X).

H-Sync X3 interface with 1 port (X3 P1) and X4 with 1 port (X4 P1)

Make the redundancy connections between the two CPUs via the synchronization modules

at the X3 P1 and X4 P1 interfaces (LC sockets). You interconnect the CPUs in pairs via the

fiber-optic cables.

①

②

Figure 3-2

Interface assignments

X3 P1 without synchronization module

X4 P1 with synchronization module and removed dummy plugs

Interface assignments

CPU 1517H-3 PN (6ES7517-3HP00-0AB0)

Equipment Manual, 11/2019, A5E42011886-AB