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9 Troubleshooting and Maintenance
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
9-2 Error Log Functions
9
9-2-2 Error Codes and Detail
Codes
9-2-2 Error Codes and Detail Codes
Error
code
(Hex)
Error Detail code Record
stored in
EEPROM
First byte Second byte
0001 CPU Unit watchdog timer error 00 Hex 00 Hex Yes
0002 CPU Unit service monitoring error (Servicing
from the CPU Unit is not performed at fixed
intervals.)
Monitoring time (ms) Yes
0006 Other CPU error Bit 14 ON: Duplicate unit number setting
Bit 11 ON: Unit not in registered Unit
Configuration in the CPU Unit
Other bits: Reserved by system
Ye s
000F CPU Unit initialization error 00 Hex 00 Hex Yes
0011 Event timeout MRC SRC Yes
0012 CPU Unit memory error 01 Hex: Read error
02 Hex: Write error
03 Hex: Routing table
04 Hex: CPU Bus Unit
system settings error
05 Hex: Special Unit CIO
or DM allocation
Ye s