Rockwell Automation 193-DNENCATR EtherNet/IP Communications Auxiliary User Manual - Manual (Page 82)

82 Rockwell Automation Publication 193-UM014B-EN-P December 2011
Chapter 10
Recoverable Error Mode
In this mode, the EtherNet/IP Communications Auxiliary MS LED flashes red.
The device will respond to messages that are specified in offline mode recovery
message protocol.
Unrecoverable Error Mode
In this mode, the EtherNet/IP Communications Auxiliary MS LED illuminates a
solid red. The device continues in this state as long as the device is powered.
Troubleshooting
Procedures The following table identifies possible causes and corrective actions when
troubleshooting EtherNet/IP related failures using the status LEDs.
Table 23 - Troubleshooting Procedures
Error Type Description LED State
Recoverable Duplicate IP address detected. Flashing Red
A device is not present on the DeviceNet scan list.
Error Type Description LED State
Unecoverable Power-up initialization failure. Solid Red
Data communication error.
Status LED Color State Possible Cause Corrective Action
EtherNet/IP
Network Status
(NS)
None —
The EtherNet/IP
Communications Auxiliary is
not receiving power.
Check the DeviceNet cable
connections and verify that
24V DC exists between the red
and black terminals.
Green, Red,
Not Illuminated
Flashing
(once)
Normal This is a normal power-up
sequence.
Green Flashing
The EtherNet/IP
Communications Auxiliary is
online, but with no
connections established.
Check the EtherNet/IP master
and its scan list for correct
scanner configuraton.
Green Solid
Normal operating state and
the EtherNet/IP
Communications Auxiliary is
allocated to a master.
No action is required.
Red Flashing
One or more EtherNet/IP
connections timed out.
Reset the EtherNet/IP master
device.
Red Solid
Diagnostics test failed on
power-up/reset. An internal
fault exists.
Cycle power to the unit. If the
fault still exists, replace the
unit.
Duplicate EtherNet/IP module
address exists. Two modules
cannot have the same address.
Change the IP address to a
valid setting and reset the
device.
A fatal communication error
occurred.
Check Ethernet media for
proper installation.