Siemens sinamics dcp Operating Instructions Manual page 203

IP address assignment
The IP addresses of IO devices can be assigned by the IO controller and always have the
same subnet screen 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
If the network is part of an existing EtherNet company network, obtain the information (IP
address) from your network administrator.
Device name (NameOfStation)
An IO device does not have a device name upon delivery. 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 stored retentively using either STARTER, the Primary Setup Tool
(PST) or with HW Config of STEP 7.
Note
You can enter the address data for the ports of the optional CBE20 module in STARTER in
the expert list using parameters p8940, p8941, p8942 and p8943.
Replacing the Control Unit (CUD) (IO device)
If the IP address and device name are stored in non-volatile memory, this data is also
forwarded with the memory card of the Control Unit.
If a complete Control Unit needs to be replaced due to a device or module defect, the new
Control Unit automatically parameterizes and configures using the data on the memory card.
Following this, cyclic exchange of user data is restarted. The memory card allows the
module to be replaced without an IO supervisor when a fault occurs in a PROFINET device.
SINAMICS DCP
Operating Instructions, 05/2016, A5E34382853K
8.6 Communication via PROFINET IO
Operation
203