Event name Non-volatile Memory Hardware Error Event code 00200000 hex
Meaning An error occurred in non-volatile memory.
Source Depends on where the Support
Software is connected and the
system configuration.
Source details NX Unit Detection tim-
ing
When power is
turned ON to
the NX Unit
Error attrib-
utes
Level Minor fault Log category System
Recovery For the NX bus of CPU Units
Cycle the power supply to the Unit or restart the NX bus.
For Communications Coupler Units
Cycle the power supply to the Unit or restart the Slave T
erminal.
If the errors are detected in the Controller, reset all of the errors in the Controller.
Effects User program Continues. Operation I/O refreshing for the NX Unit stops. Messages
cannot be sent to the NX Unit.
System-de-
fined varia-
bles
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
Non-volatile memory failure. For the NX bus of CPU Units
Cycle the power supply to the
Unit or restart the NX bus. If the
error persists even after you
make the above correction, re-
place the relevant NX Unit.
For Communications Coupler
Units
Cycle the power supply to the
Unit or restart the Slave T
ermi-
nal. If the error persists even af-
ter you make the above correc-
tion, replace the relevant NX
Unit.
None
Attached in-
formation
None
Precautions/
Remarks
None
5 Troubleshooting
5-9
NX-series System Units User's Manual (W523)
5-3 Checking for Errors and Troubleshooting on the Support Software
5
5-3-4 Meaning of Error