Siemens SINAMICS S150 NEMA, Operating Instructions Manual, Page: 99 / 862

Electrical installation
4.8 Signal connections
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
97
Note
The rotary coding switches used to set the PROFIBUS address are located beneath the
cover.
Note
Address 126 is used for commissioning. Permitted PROFIBUS addresses are 1 ... 126.
When several Control Units are connected to a PROFIBUS line, you set the addresses
differently than for the factory setting. Each PROFIBUS address in a PROFIBUS line can
only be assigned once. Either set the PROFIBUS address in absolute terms using the rotary
coding switches – or selectively in parameter p0918. Each change made to the bus address
is not effective until POWER ON.
The currently set address of the rotary coding switch is displayed in parameter r2057.
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 Chapter "Industrial Security
(Page 26)").