12 Troubleshooting
12 - 24
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
84500000
hex
IP Address
Duplication
Error
The same IP
address is used
more than once.
• The IP address of the Eth-
erNet/IP port is also used
as the IP address of
another node.
√ P. 12-38
84510000
hex (Ver. 1.2
or later)
BOOTP
Server Con-
nection
Error
The connection
with the BOOTP
server failed.
• BOOTP server is stopped.
• An error occurred in com-
munications with the
BOOTP server.
√ P. 12-39
84C00000
hex
NX Unit
Communi-
cations Tim-
eout
An error occurred
in I/O data com-
munications with
the NX Units.
• An NX Unit is not mounted
properly.
• An NX Unit has failed.
√ P. 12-40
84C10000
hex
NX Unit Ini-
tialization
Error
Initializing an NX
Unit failed.
• An error occurred in pro-
cessing the Communication
Coupler Unit.
• An initialization error
occurred in an NX Unit.
• The Channel Enable/Dis-
able Setting for all channels
of the Analog Input Unit are
set to Disable.
The Enabled Channel Set-
tings for all channels of the
Analog Output Unit are set
to Disable.
√ P. 12-41
84C50000
hex
NX Unit
Startup
Error
Starting an NX
Unit failed.
• A startup error occurred in
an NX Unit.
√ P. 12-42
350E0000
hex
NX Bus
Cycle Delay
Detected
Exceeding the
NX bus cycle was
detected.
• The NX bus cycle was
exceeded.
√ P. 12-43
35510000
hex
NTP Client
Setting
Error
An error was
detected in the
NTP client set-
tings.
• The IP address set in the
NTP client settings is
invalid.
• Power was interrupted
whe
n a d
ownload was in
progress for the NTP client
settings.
√ P. 12-43
80220000
hex
NX Mes-
sage Com-
munications
Error
An error was
detected in mes-
sage communi-
cations and the
message frame
was discarded.
For the NX bus of CPU Units
• The message communica-
tions load is high.
For Communications Coupler
Units
• The message communica-
tions load is high.
• The communications cable
is disconnected or broken.
• Message communications
were cutoff in communica-
tions.
√ P. 12-44
Event code
Event
name
Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
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