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I/O configuration variants
4.6 System and media redundancy at the PROFINET IO interface
The figure below shows the system-redundant connection of nine IO devices using three
switches. This configuration, for example, allows you to arrange IO devices in several
cabinets.
Figure 4-14
Note
Logical structure and topology
The topology itself does not determine if IO devices are connected one-sided or in a
configuration with system redundancy. This is determined in the course of configuration. You
can configure the IO devices in the first figure, for example, as one-sided instead of the
system-redundant setup.
66
PN/IO with system redundancy
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
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