Allen-Bradley MicroLogix 1761-NET-ENI Manual de usuario Pagina 124

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Publication 1761-UM006E-EN-P - August 2005
9-4 Troubleshooting
Table 9.5 Series C LED Indicators
LED Description Color State Indicates
POWER module power green on The module is powered.
off The module does not have power.
TX/RX RS-232 data
transmission
indicator
green flashing Data is being transmitted or received over the RS-232 port.
off No RS-232 traffic.
10
10-Base-T
Ethernet link
status and data
transmission
indicator
off No link or continuous data activity on 10MB Ethernet.
amber on 10-Base-T half-duplex: Link is good, but there is no data activity.
flashing
10-Base-T half-duplex: Link is good with sporadic data activity.
(1)
green
on 10-Base-T full-duplex: Link is good, but there is no data activity.
flashing
10-Base-T full-duplex: Link is good with sporadic data activity.
(1)
100
100-Base-T
Ethernet link
status and data
transmission
indicator
off No link or continuous data activity on 100MB Ethernet.
amber on 100-Base-T half-duplex: Link is good, but there is no data activity.
flashing
100-Base-T half-duplex: Link is good with sporadic data activity.
(1)
green
on 100-Base-T full-duplex: Link is good, but there is no data activity.
flashing
100-Base-T full-duplex: Link is good with sporadic data activity.
(1)
FAULT fault condition
indicator
red on lit when a fault condition is present, possible causes
Duplicated IP address on network
Network controller error
flashing one of the following:
faulty network connection at power up
ENI/ENIW does not have a valid IP address
No BootP/DHCP response
off Hardware is functioning normally
(1) Network activity is not necessarily to/from the ENI/ENIW.
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