Omron V680 Series User Manual page 63

 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 2
System Configuration
Reader/Writer
RFID System
User's Manual
(Modbus TCP)
61