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Hi,
D455-2 DP/PN connected witch 7 cu320-2pn units in chain, thru profinet IRT 2ms,
p115 in cu=4000us
cable lengths about 2m (cable from 455 to first cu is longer) but all set to <100m
Some time ago started to show that error on drives connected to units 5,6,7.
Topology is 1-4-3-2-5-6-7
After changing topology to 1-2-3-4-5-6-7 with cable length <20m, it started more often on drives connected to units 3-4-5-6-7
profinet cables are exchanged, what could it be?
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