Siemens SINAMICS S120 Series Function Manual page 117

Notes regarding interface X127 LAN (Ethernet)
Note
Use
Ethernet interface X127 is intended for commissioning and diagnostics, which means that it
must always be accessible (e.g. for service).
Further, the following restrictions apply to X127:
• Only local access is possible
• No networking - or only local networking in a closed and locked electrical cabinet
permissible
If it is necessary to remotely access the electrical cabinet, then additional security measures
must be applied so that misuse through sabotage, unqualified data manipulation and
intercepting confidential data is completely ruled out (also see "Industrial security
(Page 14)").
Device name (NameOfStation)
When it is shipped, an IO device does not have a device name. An IO device can only be
addressed by an IO controller, for example, for the transfer of project engineering data
(including the IP address) during startup or for user data exchange in cyclic operation, after it
has been assigned a device name with the IO supervisor.
Note
The device name must be retentively saved – either with Startdrive or with the hardware
configuration from STEP 7.
Note
Address information for interfaces
The address data for the corresponding interfaces can be entered in Startdrive in the expert
list using the following parameters:
• X127 Ethernet interfaces:
Parameters p8901, p8902, and p8903
• Internal PROFINET interfaces X150 P1 and P2:
Parameters p8921, p8922 and p8923
• Interfaces of the optional CBE20 module (X1400):
Parameters p8941, p8942 and p8943
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Communication via PROFINET IO
5.1 General information about PROFINET IO
115