Siemens SINAMICS Configuration Manual page 140

Communication
A.1 Communication
IP address
The TCP/IP protocol is a prerequisite for establishing a connection and parameterization. To
allow a PROFINET device to be addressed as a node on Industrial Ethernet, this device
requires a unique IP address in the network. The IP address is made up of 4 decimal numbers
with a range of values from 0 through 255. The decimal numbers are separated by a decimal
point. The IP address comprises:
● The address of the node (also called host or network node)
● The address of the (sub) network
IP address assignment
The IP addresses of IO devices can be assigned by the IO controller and always have the
same subnet mask as the IO controller. In this case, the IP address is not stored permanently.
The IP address entry is lost after POWER ON/OFF. The IP address can be assigned retentively
via the STARTER function "Accessible nodes".
This function can also be performed with HW Config of STEP 7. The function is called "Edit
Ethernet node" here.
Note
IP addresses of the onboard interfaces
It is not permissible that the IP address band of the Ethernet interface and the PROFINET
interface are the same. The factory setting of the IP address of the Ethernet interface X127 is
169.254.11.22; the subnet mask is 255.255.0.0.
Ethernet interface X127 is intended for commissioning and diagnostics.
Do not use this interface for other purposes and ensure that X127 (e.g. for service) is always
accessible.
Note
If the network is part of an existing Ethernet company network, obtain the information (IP
address) from your network administrator.
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 saved in non-volatile memory, either with STARTER/Startdrive or
with the hardware configuration from STEP 7.
140
Configuration Manual, 08/2017, A5E36912609A
Industrial Security