Siemens Simantic S7-1500 Manual page 32

Wiring
Assignment of the MAC addresses
CPU 1517T-3 PN/DP has two PROFINET interfaces. The first interface has two ports. Each
of the PROFINET interfaces has a MAC address and each of the PROFINET ports has its
own MAC address. In total, the CPU 1517T-3 PN/DP has five MAC addresses.
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 1517T-3 PN/DP.
The table below shows how the MAC addresses are assigned.
Table 3- 2 Assignment of the MAC addresses
MAC address 1
MAC address 2
MAC address 3
MAC address 4
MAC address 5
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Assignment
PROFINET interface X1
(visible in STEP 7 for accessible devices)
Port X1 P1 R (required for LLDP, for example)
Port X1 P2 R (required for LLDP, for example)
PROFINET interface X2
(visible in STEP 7 for accessible devices)
Port X2 P1 (required for LLDP, for example)
Labeling
Front, lasered
•
Right side, lasered
•
(start of number range)
Front and right side, not lasered
•
Front and right side, not lasered
•
Front, lasered
•
Right side, not lasered
•
Front, not lasered
•
Right side, lasered
•
(start of number range)
CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0)
Manual, 12/2017, A5E36285525-AB