Omron V680S-HMD63-PNT User Manual page 221

About The Ethernet Communication Abnormality
If an Ethernet network is configured into a loop as shown below, broadcast packets are accumulated in the band, and the
communication is disabled. Therefore, do not configure the Ethernet network into a loop.
Sending broadcast storm
HUB
When a large amount of broadcast packets or multicast packets flow into the Ethernet network, Reader/Writers may stop its
operation. Please do not send a large amount of packet. Please separate the Reader/Writers from the network segment that
broadcast or multicast packets flow.
Broadcast storm
HUB
Communication disabled
HUB
Section 9
Troubleshooting
Reader/Writer
RFID System
User's Manual
219
(PROFINET)