Application - Siemens SINUMERIK 840D sl Manual

MAC addresses
A type plate for the MAC addresses of the Ethernet interfaces is attached to the front panel
of the Control Unit:
Figure 6-4
You can see this type plate when you open the front cover of the Control Units without
PROFINET.
6.4.2

Application

Ethernet connections
The following connections can be established via the Ethernet interfaces:
● X120 provides the link to the automation network (e.g., OPs).
● X130 connects the control unit to the plant network.
● X127 serves solely as a service socket.
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
MAC addresses of Ethernet interfaces X120, X130, X127
6.4 Ethernet interfaces (X120, X130, X127)
Interfaces
49