User manual

150 Publication ENET-UM001I-EN-P - January 2010
Chapter 11 Troubleshoot an EtherNet/IP Module
2. Review the values in the Ethernet Link table.
If And you Then
Speed is 100 or
1000
Mbps
Do not want to change your port
speed
No action is required.
Important: 100 Mbps is the default port spe
ed.
W
ant to reduce your port speed to 10
Mbps
You must manually configure your module and reset your module.
See Configure the Module with RSLinx Software on
page 48 .
10
Mbps
Want to increase your port speed to
100 Mbps
Reset your module or see Configu
re the Module with RSLinx Software
on
page 48 .
Do not want to change your port
speed
No action is required.
Duplex is Full Are sending large amounts of data No action is required.
Important: Full Duplex is the default port setting.
Full-duplex ports eliminate
collisions because each device has separate
channels for the trans
mission and receipt of large amounts of data.
Half Are not sending large amounts of data No action is required.
Important: Delays due to collisions or switch traffic are usually
negligible, b
ut can become a problem if you need to send a lot of data.
Are sending large amounts of data Change your module’s Duplex setting to Full. See Configure the Module
with RSLinx Software on
page 48 .
Autonegotiate
Status is
Speed
and/or
Duplex
Are using a fiber converter Change your module’s Autonegotiate status to None. See Configure the
Module with RSLinx Software on
page 48 .
Important: Fiber links do not support autonegotiation.
Are not using a fiber converter No ac
tion is required.
Important: Speed and/or Duplex is the default setting.
Autonegotation enables
devices to select the best way to communicate
without you having to do any configuring. All devices with an Ethernet
speed
rating of 100 Mbps are required to support autonegotiation.
None Are not using a fiber converter Change your module’s Autonegotiate status to Speed and/or Duplex.
See Configure the Module with RSLinx Software on
page 48 .