Siemens SINAMICS S120 Function Manual page 843

Benefits
● No system downtime in the case of a controller failure
● Component replacement possible during ongoing operation
● Configuration changes possible during ongoing operation
● Automatic synchronization after replacing components
Restrictions
● IRT is not supported
● No simultaneous operation of Shared Device and Shared I-Device
● Maximum 2 cyclical PROFINET connections
● System redundancy only via the onboard interface of SINAMICS S120 PROFINET
Control Unit
● For the duration of switching from one controller to the other, the setpoints of the last
connection remain frozen and valid.
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
11.3 Communication via PROFINET IO
Communication
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