Each of the PROFINET interfaces has a MAC address and each of the PROFINET ports has its
own MAC address. There are a total of ten MAC addresses for the two CPUs of the
CPU1515R‑2PN.
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 addresses are
printed on the rating plate on the right side of each CPU1515R‑2PN.
The table below shows how the MAC addresses are assigned.
Table 4-2Assignment of MAC addresses using the example of a single CPU
Assignment Labeling
MAC address 1 PROFINET interface X1
(visible in STEP7 for accessible devices)
• Front printed
• Right-side printed
(start of number range)
MAC address 2 Port X1P1R (required for LLDP, for example) ---
MAC address 3 Port X1P2R (required for LLDP, for example) ---
MAC address 4 PROFINET interface X2
(visible in STEP7 for accessible devices)
• Front printed
MAC address 5 Port X2P1 (required for LLDP, for example) • Right-side printed
(end of number range)
28
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD
Connecting
4.1 Terminal assignment