Description
2.2 Structure of PROFIBUS networks
PROFIBUS with STEP 7 V13
Function Manual, 12/2014, A5E03775446-AC
37
2.2.4.2
Topology with diagnostic repeater
Diagnostic repeater with three segments
You may not exceed the maximum permitted cable length of 100 m per segment that can be
monitored for the diagnostic repeater. The segments connected to DP2 and DP3 are
diagnostics-capable. The cable length that can be monitored is limited for some cable types.
Maximum cascade depth
You can connect up to nine diagnostic repeaters in series between any two PROFIBUS
stations.
Figure 2-11 Schematic layout of a PROFIBUS network with maximum possible cascade depth at
diagnostic repeaters
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