PROFINET
8.7 Media redundancy
S7-400H
System Manual, 03/2012, A5E00267695-11
105
System redundancy with media redundancy
① S7-400H system
② SCALANCE X400 (one-sided I/Os)
③ ET200M (one-sided/system-redundant I/Os)
Figure 8-1 Configuration example of system redundancy with media redundancy
Note
RT communication is interrupted (station failure) if the reconfiguration time of the ring is
greater than the selected response monitoring time of the IO device. This means that you
should select a response monitoring time of the IO device of sufficient length. The same
applies to IO devices configured with MRP outside the ring.
Additional information
For additional information, refer to the STEP 7 Online Help and to the PROFINET System
Description (http://support.automation.siemens.com/WW/view/en/19292127
) manual.
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