Siemens SIMATIC ET 200SP Manual page 28

Wiring
The table below shows how the MAC addresses are assigned.
Table 3- 9
MAC address 1
MAC address 2
MAC address 3
MAC address 4
28
Assignment of the MAC addresses
Assignment
PROFINET interface X1
Visible in STEP 7 for accessible devices
•
Lasered on the front of the CPU
•
(start of the number range)
Port X1 P1 R (required for LLDP, for example)
Port X1 P2 R (required for LLDP, for example)
Port X1 P3 (required for LLDP, for example)
CPU 1512SP-1 PN (6ES7512-1DK01-0AB0)
Manual, 09/2016, A5E33591411-AC