Siemens SIMATIC S7-1500R/H Manual page 27

PROFINET interface X1 with 2-port switch (X1 P1R and X1 P2R)
The assignment corresponds to the Ethernet standard for a RJ45 connector.
• 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 PROFINET interface X1 ports
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).
Unplugging the PROFINET plug
You need a screwdriver (max. blade width 2.5 mm) to unplug the PROFINET plug.
Removing the display
You can find a description of how to remove and replace the display in the system manual
S7-1500R/H redundant system.
Additional information
You can find additional information on the topic of "Connecting the CPU" and on the topic
"Accessories/spare parts" in the system manual for S7-1500R/H redundant system
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
Assignment of the MAC addresses
For each CPU, CPU 1515R‑2 PN has:
• One PROFINET interface with two ports
• One PROFINET interface with one port
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD
Connecting
4.1 Terminal assignment
27