Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Operation
6.9 Communication via PROFINET IO
Enclosed Drives
376
Operating Instructions, 12/2018, A5E36652151A
Parameters
•
p8835
CBE20 firmware selection
•
r8858[0...39]
COMM BOARD read diagnostics channel
•
r8859[0...7]
COMM BOARD identification data
6.9.3.2 EtherNet/IP
SINAMICS S120 supports the communication with the fieldbus EtherNet Industrial Protocol
(EtherNet/IP or also EIP). EtherNet/IP is an open standard based on Ethernet, which is
predominantly used in the automation industry. EtherNet/IP is supported by the Open
DeviceNet Vendor Association (ODVA).
For communication with EtherNet/IP, an Ethernet CBE20 option board is required. By setting
p8835 = 4, you can choose the communication profile EtherNet/IP. The profile becomes
active after POWER ON.
6.9.4 PROFINET media redundancy
To increase the availability of PROFINET, you can create a ring topology. If the ring is
interrupted at one point, the data paths between the devices are automatically reconfigured.
After reconfiguration, the devices can be re-accessed in the new topology that is created.
To create a ring topology with media redundancy, route the two ends of a line-type
PROFINET topology to a switch which serves as redundancy manager (e.g. a suitable
SCALANCE switch). Closing the linear bus topology is realized using 2 ports (ring ports) of
the SCALANCE redundancy manager, which monitors the data telegrams in the PROFINET
ring. All other connected PROFINET nodes are redundancy clients.
The Media Redundancy Protocol (MRP) is the standard procedure for media redundancy.
Using this procedure, a maximum of 50 devices can participate in each ring. In the case of
an interrupted cable, data transfer is only briefly interrupted as the system switches over to
the redundant data path.
If a short-term interruption is not permitted, data transfer must be set to IRT High
Performance. The uninterruptible MRRT is then automatically set. A SIMOTION controller (or
another suitable controller) is required in this case.
The two integrated PROFINET IO interfaces of the Control Units CU320-2 PN can be
configured as redundancy clients.
For a CBE20, only the first two ports are capable of establishing a ring topology. Routing
between the integrated PROFINET IO interfaces and a CBE20 is not possible.