Siemens SIMATIC S7-1500 Equipment Manual page 37

Connecting up
PROFINET interface X1 with 2-port switch (X1 P1R and X1 P2R)
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 4-1
Note
You need a screwdriver (max. blade width 2.5 mm) to remove the PROFINET plug.
Remove display
You can find a description of how to remove and replace the display in the S7-1500,
ET 200MP system manual (http://support.automation.siemens.com/WW/view/en/59191792).
Reference
You can find additional information on the topics of "Connecting the CPU" and
"Accessories/spare parts" in the S7-1500, ET 200MP
(http://support.automation.siemens.com/WW/view/en/59191792) system manual.
Assignment of the MAC addresses
The CPU 1513-1 PN has a PROFINET interface with two ports. The PROFINET interface itself
has a MAC address, and each of the two PROFINET ports has its own MAC address. The
CPU 1513-1 PN therefore has three MAC addresses in total.
The MAC addresses of the PROFINET ports are needed for the LLDP protocol, for example for
the neighborhood discovery function.
The number range of the MAC addresses is sequential. The first and last MAC address are
lasered on the rating plate on the right side of each CPU 1513-1 PN.
36
PROFINET ports
CPU 1513-1 PN (6ES7513-1AM03-0AB0)
Equipment Manual, 11/2023, A5E40881673-AD