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Operation
6.9 Communication via PROFINET IO
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
Save device name retentively
The device name must be stored retentively using either STARTER or with the hardware
Config of STEP 7.
Note
Address information for interfaces
The address data for the corresponding interfaces can be entered in STARTER 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:
Parameters p8941, p8942 and p8943
Activating the interface configuration and saving it in non-volatile memory
To activate the interface configuration and save it in non-volatile memory, use the following
parameter settings:
● X127 Ethernet interfaces: p8905 = 2
● Internal PROFINET interfaces X150 P1 and P2: p8925 = 2
● Interfaces of the optional CBE20 module (X1400): p8945 = 2
Replacing Control Unit (IO device)
If the IP address and device name are stored in non-volatile memory, this data is also
transferred with the memory card of the Control Unit. The memory card allows a module to
be replaced without an IO supervisor when a fault occurs in a PROFINET device.
If a complete Control Unit needs to be replaced due to a device or module defect, the new
Control Unit automatically performs parameterization and configuration using the data on the
memory card. Following this, cyclic exchange of user data is restarted.
370
Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives
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