Siemens SIMATIC PC 847B Operating Instructions Manual page 174

Detailed descriptions
16.5 BIOS Setup
Figure 16-12 "Hardware Options" field (example for PROFINET)
Set the parameters of interfaces installed on the motherboard at this field.
Entry
PCI-MPI/DP *
Onboard
Profinet *
MAC Address
Layer 2 *
MAC Address
Profinet *
On-board
Ethernet
Ethernet
Address
On-board
Ethernet 1
Remote Boot
174
Meaning
[Enabled] PROFIBUS onboard is enabled
[Disabled] PROFIBUS onboard is disabled
[Enabled] CP 1616 onboard is enabled
[Disabled] CP 1616 onboard is disabled
This address is for NDIS applications.
Example: 000E8C8E8C0A
This is the main address for PROFINET applications
Example: 000E8C8E8C0B.
The MAC addresses of the individual ports are derived from "MAC
Address Profinet". This is not shown in the BIOS setup.
Example: P1=000E8C8E8C0B+1, P2=000E8C8E8C0B+2,
P3=000E8C8E8C0B+3
[Enabled] The Ethernet interface on the motherboard is enabled.
[Disabled] The Ethernet interface on the motherboard is disabled.
Shows the individual Ethernet address.
[Enabled] Booting via Ethernet interface 1 is enabled.
[Disabled] Booting via Ethernet interface 1 is disabled.
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01