Communication via PROFINET IO
5.1 General information about PROFINET IO
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
121
Note
PROFINET interfaces on the CU320-2 PN with CBE20
The integrated PROFINET in
terface of the CU320-2 PN is independent of the optionally
inserted CBE20 module. The two PROFINET interfaces are not connected with each other.
Routing is not possible between the two PROFINET interfaces.
Note
Ring topology
When connecting the ports,
it must be ensured that for standard applications a ring topology
is not created. Additional information on ring topologies can be found in Section
Media
(Page 151).
Note
Support for the medium-dependent interface auto-MDI(X)
•
The Ethernet interface does not support auto-MDI(X). If the LAN interface of the
communication partner also cannot handle auto-MDI(X), then a crossover cable must be
used to establish the connection.
The PROFINET interfaces support Auto MDI(X). It is therefore possible to use both
crossed and uncrossed cables to connect the devices.
The CBE20 Communication Board also supports auto-MDI(X). It is therefore possible to
use both crossed and uncrossed cables to connect the devices.
5.1.7 References
● The integration of a SINAMICS S120 with CU310-2 PN/CU320-2 DP/CU320-2 PN in a
PROFINET IO system is described in detail in the "SIMOTION SCOUT Communication"
System Manual.
● For an example of how to link a Control Unit to a SIMATIC S7 via PROFINET IO, please
refer to the FAQ in the Online Support "PROFINET IO communication between an S7-
CPU and SINAMICS S120
(http://support.automation.siemens.com/WW/view/en/27196655)".
● A description of the CBE20 and how you can install it is provided in the SINAMICS S120
Control Units and Additional System Components Manual.
● The PROFINET interface on the CU310-2 PN unit is described in the SINAMICS S120
AC Drive Manual:
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