Communication Channels For Profinet - Siemens SINAMICS S120 Series Function Manual

Communication via PROFINET IO
5.1 General information about PROFINET IO
5.1.6

Communication channels for PROFINET

PROFINET connection channels
● A Control Unit has an integrated Ethernet interface (X127).
● The PROFINET versions CU320-2 PN and CU310-2 PN each have a PROFINET
interface (X150) with two onboard ports: P1 and P2
● A CU320-2 PN or a CU310-2 PN Control Unit can simultaneously establish a total of eight
acyclic connections (e.g. S7) via the integrated PROFINET interfaces.
Notes regarding interface 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 "Industrial security
(Page 14)").
Control Unit with CBE20
A Communication Board can be optionally inserted in the CU320-2 PN/DP Control Unit:
● The CBE20 Communication Board (X1400) is a PROFINET switch with 4 additional
PROFINET ports.
Notes
Note
PROFINET routing
Routing is not possible between the onboard interfaces X127 and X150 – or between the
onboard interfaces of the Control Unit 320-2 PN and an inserted CBE20 (X1400).
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Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Communication