12 Troubleshooting
12 - 28
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
Event name Non-volatile Memory Hardware Error Event code 00220000 hex
Meaning An error occurred in non-volatile memory.
Source EtherNet/IP Source details EtherNet/IP
Coupler Unit
Detection
timing
When power is
turned ON to
the EtherNet/IP
Coupler Unit
Error
attributes
Level Minor fault Recovery Cycle the power
supply to the
EtherNet/IP
Coupler Unit
Log category System
Effects
User program
Continues. Operation Writing to non-volatile memory will not be possible.
I/O refreshing for the NX Units in the Slave Terminal
stops.
Messages cannot be sent to the NX Units in the
Slave Terminal.
Sys-
tem-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
Non-volatile memory failure Replace the Communication Cou-
pler Unit.
None
Attached
information
None
Precautions/
Remarks
None
Event name Non-volatile Memory Control Parameter Error Event code 10420000 hex
Meaning An error occurred in the control parameters.
Source EtherNet/IP Source details EtherNet/IP
Coupler Unit
Detection
timing
When power is
turned ON to
the EtherNet/IP
Coupler Unit
Error
attributes
Level Minor fault Recovery Cycle the power
supply to the
EtherNet/IP
Coupler Unit
Log category System
Effects
User program
Continues. Operation I/O refreshing for the NX Units in the Slave Terminal
stops. Messages cannot be sent to the NX Units in
the Slave Terminal.
Sys-
tem-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The power supply to the Commu-
nications Coupler Unit was turned
OFF or Support Software commu-
nications were disconnected while
writing the Unit operation settings
was in progress.
Download the Unit operation set-
tings of the Communications Cou-
pler Unit again.
Do not turn OFF the power supply
to the Communications Coupler
Unit or disconnect Support Soft-
ware communications while trans-
fer of the Unit operation settings
for the Communications Coupler
Unit by the Support Software or
save of NX Unit parameters by a
message is in progress.
Attached
information
None
Precautions/
Remarks
None