13 Troubleshooting
13-16
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
* The 7-segment display alternates between the node address and error code.
Indicator
Error Cause Unit operation
Error log
(hex)
Countermeasure
MS NS
7-seg-
ment*
Errors Related to Memory Access
Flash-
ing red
--- EA IP Advanced Set-
tings Error
There is an error in the
parameter settings stored
in the Unit's non-volatile
memory. (An error can
occur when power is
interrupted while data is
being written to non-vola-
tile memory.)
The Unit Error Occurred
Flag (n+10, bit 00) and
Invalid Communications
Parameter Flag (n+12, bit
04) will go ON.
03D1 Identify the error log
data, correct the set-
tings, and then down-
load the Unit Setup
from the tab pages of
the Edit Parameters
Dialog Box of the
Sysmac Studio.
Flash-
ing red
--- F2 Ethernet Basic
Settings Error
--- 03D0 Download the set-
tings from the TCP/IP
or Ethernet Tab
Pages of the Edit
Parameters Dialog
Box of the Sysmac
Studio or download
the TCP/IP settings
from the Network
Configurator.
--- --- E1 Ethernet Link Not
Detected
The link with the
Ethernet switch could
not be detected.
Note This error will
not occur when
data links are
not set.
• The Unit will be offline
and unable to commu-
nicate. Errors will be
returned to all commu-
nications requests.
• Data exchanges
(refreshing) will con-
tinue with the CPU Unit.
*_UnitErr (Unit Error
Occurred), *_NetErr (Net-
work Error Occurred),
and *_LkOffErr (Link OFF
Error) will change to
TRUE. *_LkSta (Link Sta-
tus) will change to
FALSE.
03D3 Check the following
items:
• Is the cable con-
nected?
• Is the cable dam-
aged or loose?
• Is there excessive
noise?
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