239
Indicator/Display Status and Corrective Actions for Errors Section 12-3
Note (1) Not saved in Pre-Ver. 1.0 Controllers, but saved in Controllers with unit
version 1.0 or later (including Controllers that support EtherNet/IP).
(2) These functions are not supported by Pre-Ver. 1.0 Controllers. The error
information is saved in Controllers with unit version 1.0 or later (including
Controllers that support EtherNet/IP).
Errors in Controllers that Support EtherNet/IP
Fatal Errors
Nonfatal Errors
--- P4Ù
Node
address of
error
All OFF
Input PS Voltage
Low
See note
1.
I/O power
(input) is not con-
nected
although a safety
input terminal or
test output termi-
nal is used.
Check the following points:
• Make sure the power supply
voltage is set within the speci-
fied range.
• Make sure a cable or wire is
not disconnected.
--- P5Ù
Node
address of
error
All OFF
Output PS Voltage
Low
See note
1.
I/O power (out-
put) is not con-
nected although
a safety output
terminal is used.
Indicators/display Error history Cause Corrective actions
NS Seven-
segment
display
I/O Name Saved in
nonvola-
tile
memory
Indicators/display Error history Cause Corrective actions
MS NS Seven-
segment
display
Name Saved in
nonvolatile
memory
OFF
UF
Lit red
System Fail-
ure
Yes EtherNet/IP adaptor hard-
ware error
Turn the power OFF and back
ON, and check operation. If the
problem occurs again, it may be
necessary to replace the Con-
troller.
Indicators/display Error history Cause Corrective actions
MS NS Seven-
segment
display
Name Saved in
nonvolatile
memory
Lit red
F0↔n4 --- IP Address
Duplication
Error
Yes IP address duplication
error
The same IP address is set for
another device on the network.
Correct the settings so that there
is no duplication, and then turn
the power ON again.
OFF
E3↔n4 --- Server Con-
nection
Error
Yes BOOTP server connection
error
Check the following points.
• Make sure the cable is con-
nected correctly.
• Make sure the BOOTP server
is operating normally.
OFF
F2↔n4 --- Ethernet
Basic Set-
ting Error
Yes Basic setting logic pro-
cessing error
Correct the configuration. If the
problem occurs again, replace
the Controller.
OFF
E9↔n4
Lit red
Memory
Access
Error
Yes EtherNet/IP memory error Cycle the power supply. If the
problem occurs again, replace
the Controller.
OFF
F4↔n4
Lit red
Communi-
cations
Controller
Error
Yes EtherNet/IP communica-
tions controller error
Cycle the power supply. If the
problem occurs again, replace
the Controller.
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