Caution in handling – IAI America XSEL-S User Manual
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Caution in Handling
1. It is recommended that the baud rate be set based on auto negotiation.
Make sure the link setting of the EtherNet/IP unit matches the communication mode set for the
connected switching hub. If not, the link becomes unstable and communication cannot be
performed properly.
It is recommended to enable auto negotiation using an appropriate XSEL Controller parameter.
The table below lists settings for each communication mode of the switching hub:
Fixed to 10M
Fixed to 100M
EtherNet/IP Unit
Switching Hub
Auto
negotiation
Full-duplex Half-duplex Full-duplex Half-duplex
Auto Negotiation
(recommended)
u
c
u
c
Full-duplex
u
c
u
u
u
Fixed to
10M
Half-duplex
c
u
c
u
u
Full-duplex
u
u
u
c
u
Fixed to
100M
Half-duplex
c
u
u
u
c
(: Connection possible (recommended), c: Connection possible, u: Connection not possible)
2. Use a switching hub.
Build your network using a switching hub, without using a repeater hub. If a repeater hub is
used, tag data link operation may become unstable. For details, refer to the operation manual
for your master unit.