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9 Troubleshooting
NX-series Digital I/O Unit User’s Manual (W521)
9-3 Checking for Errors and Troubleshooting on the Support Software
9
9-3-3 Event Codes and Corrections for Errors
The errors (i.e.,events) that occur in the Digital I/O Unit is shown below.
The following abbreviations are used in the event level column.
Refer to the troubleshooting manual for the connected CPU Unit or Industrial PC for information on
NJ/NX/NY-series event codes.
9-3-3 Event Codes and Corrections for Errors
Abbreviation Name
Maj Major fault level
Prt Partial fault level
Min Minor fault level
Obs Observation
Info Information
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
00200000 hex Non-volatile
Memory
Hardware
Error
An error occurred in
non-volatile mem-
ory.
• Non-volatile memory failure √ P. 9 - 11
10410000 hex Control
Parameter
Error in Mas-
ter
An error occurred in
the control parame-
ters that are saved
in the master.
For the NX bus of CPU Units
• The power supply to the CPU
Unit was turned OFF while writ-
ing the Unit operation settings
was in progress. Or there is an
error in the area of the non-vol-
atile memory in the CPU Unit in
which the Unit operation set-
tings for the relevant NX Unit
are saved.
For Communications Coupler
Units
• The power supply to the Com-
munications Coupler Unit was
turned OFF while writing the
Unit operation settings was in
progress. Or there is an error in
the area of the non-volatile
memory in the Communications
Coupler Unit in which the Unit
operation settings for the rele-
vant NX Unit are saved.
√ P. 9-12
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