Cat. No. Manual name
W500 NJ-series CPU Unit Hardware User's Manual
W501 NJ/NX-series CPU Unit Software User's Manual
W535 NX-series CPU Unit Hardware User's Manual
W578 NX-series NX1P2 CPU Unit Hardware User’s Manual
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
10200000 hex User Pro-
The user program or Controller Con-figurations and Setup were not transferred cor-rectly.
• The user program or Controller Configurations and Setup are not correct because the power supply to the Controller was interrupted during a download of the user program or the Con-troller Configurations and Setup.
• The user program or Controller Configurations and Setup are not correct because the power supply to the Controller was interrupted during online edit-ing.
• The user program or Controller Configurations and Setup are not correct because the power supply to the Controller was interrupted during a Clear All Memory operation.
• The user program or Controller Configurations and Setup are not correct because the power supply to the Controller was interrupted during a restore operation.
• Non-volatile memory failed.
S W500, W501,
W535, W578
10210000 hex Illegal User Program Execution ID
The user program execution IDs set in the user program and in the CPU Unit do not match.
• The user program execution IDs set in the user program and in the CPU Unit do not match.
• A user program execution ID is set in the CPU Unit but not in the user program.
S W500, W501,
W535, W578
10240000 hex Illegal User Program
The user program is not correct.
• There are more than 8 nesting levels for functions or function blocks.
S W500, W501,
W535, W578
10250000 hex Illegal User
The upper limit of the usable memory was exceeded or the user program or Controller Configu-rations and Setup is corrupted.
• The upper limit of the data size was exceeded.
• The main memory capacity was exceeded.
• Non-volatile memory is deterio-rating or has failed.
S W500, W501,
W535, W578
3 Error Tables
10270000 hex (Ver. 1.03 or later)
Error in Start-ing Automatic Transfer
An error was detected in pre-execution checks for automatic trans-fer.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• There is no autoload folder on the SD Memory Card.
• There are no backup files in the autoload folder on the SD Memory Card.
• Either the backup files in the autoload folder on the SD Memory Card are corrupted or required data is not in the backup files on the SD Memory Card.
• The unit version of the CPU Unit to which to transfer the files is older than the unit ver-sion of the backup files on the SD Memory Card.
• The model of the CPU Unit to which to transfer the files is not the same as the model of the CPU Unit of the backup files on the SD Memory Card.
• Recovery was executed for the SD Memory Card.
• The CPU Unit is write-pro-tected.
• The settings in the automatic transfer command file (Auto-loadCommand.ini) are not cor-rect.
• Reading the data for automatic transfer failed because the SD Memory Card is faulty or not formatted correctly.
• The SD Memory Card is dam-aged.
• The database connection ser-vice version of the CPU Unit to which to transfer the files is older than the database con-nection service version of the backup files on the SD Memory Card.
• The robot version of the CPU Unit to which to transfer the files is older than the robot ver-sion of the backup files on the SD Memory Card.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3-13
3 Error Tables
NJ/NX-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
10280000 hex (Ver. 1.03 or later)
Error in Exe-cuting Auto-matic Transfer
The automatic transfer ended in an error.
• It was not possible to read the data for automatic transfer.
• The SD Memory Card was removed during an automatic transfer.
• There are no backup files in the autoload folder on the SD Memory Card.
• The backup files in the autoload folder on the SD Memory Card are corrupted.
• The SD Memory Card is dam-aged.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3 Error Tables
10330000 hex (Ver. 1.11 or later)
SD Memory Card Pro-gram Trans-fer Pre-execution Check Error
An error was detected in pre-execution checks for transferring SD Memory Card pro-grams.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• There is no such folder on the SD Memory Card as specified by the _Card1PrgTransfer-Cmd.DirName system-defined variable.
• There are no backup files in such a folder on the SD Mem-ory Card as specified by the _Card1PrgTransferCmd.Dir-Name system-defined variable.
• Either the backup files in the folder specified by the _Card1PrgTransferCmd.Dir-Name system-defined variable on the SD Memory Card are corrupted or required data is not in the backup files on the SD Memory Card.
• The unit version of the CPU Unit to which to transfer the files is older than the unit ver-sion of the backup files on the SD Memory Card.
• The model of the CPU Unit to which to transfer the files is not the same as the model of the CPU Unit of the backup files on the SD Memory Card.
• The CPU Unit is write-pro-tected.
• Required files are not set to transfer in the setting of the _Card1PrgTransferCmd sys-tem-defined variable.
• Reading the data for the SD Memory Card program transfer failed because the SD Memory Card is faulty or not formatted correctly.
• The SD Memory Card is dam-aged.
• The database connection ser-vice version of the CPU Unit to which to transfer the files is older than the database con-nection service version of the backup files on the SD Memory Card.
• The robot version of the CPU Unit to which to transfer the files is older than the robot ver-sion of the backup files on the SD Memory Card.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3-15
3 Error Tables
NJ/NX-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
10340000 hex (Ver. 1.11 or later)
Error in Exe-cuting SD Memory Card Program Transfer
The SD Memory Card program transfer ended in an error.
• It was not possible to read the data for SD Memory Card pro-gram transfers.
• The SD Memory Card was removed during a SD Memory Card program transfer.
• There are no backup files in such a folder on the SD Mem-ory Card as specified by the _Card1PrgTransferCmd.Dir-Name system-defined variable.
• The backup files in such a folder on the SD Memory Card as specified by the _Card1Prg-TransferCmd.DirName system-defined variable are corrupted.
• The SD Memory Card is dam-aged.
S W500, W501,
W535, W578
40110000 hex PLC Function Processing Error
A fatal error was detected in the PLC Function Module.
• An error occurred in the soft-ware.
S W500, W501,
W535, W578
40160000 hex (Ver. 1.02 or earlier)
Safe Mode The Controller started in Safe Mode.
• The power supply was turned ON to the Controller when Safe Mode was set on the DIP switch on the CPU Unit.
S W500, W501
44400000 hex PLC Function Processing Error
A fatal error was detected in the PLC Function Module.
• An error occurred in the soft-ware.
S W500
44420000 hex (Ver. 1.05 or later)
PLC Function Processing Error
A fatal error was detected in the PLC Function Module.
• An error occurred in the soft-ware.
S W500, W501,
W535, W578
40120000 hex PLC Function Processing Error
A fatal error was detected in the PLC Function Module.
• An error occurred in the soft-ware.
S W500, W501,
W535, W578
40130000 hex PLC Function Processing Error
A fatal error was detected in part of the PLC Function Module.
• An error occurred in the soft-ware.
S W500, W501,
W535, W578
10230000 hex Event Log Save Error
Saving the event log failed.
• A low battery voltage prevented retention of memory during a power interruption. (NJ/NX-series)
• A forced shutdown was per-formed. (NY-series)
• Data in the event log area are invalid. (NY-series)
• Data in the NX Unit event log area are invalid. (NX1P2 CPU Unit)
S W500, W501,
W535, W578
10260000 hex Trace Set-ting Transfer Failure
The power supply was interrupted while transferring the trace settings.
• The power supply was inter-rupted while transferring the trace settings.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3 Error Tables
10290000 hex (Ver. 1.03 or later)
Backup Failed to Start
An error was detected in pre-execution checks for a backup opera-tion.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• The SD Memory Card is write protected.
• The Prohibiting backing up data to the SD Memory Card param-eter is set to prohibit backing up data to an SD Memory Card.
• Another backup operation is in progress.
• Synchronization, online edit-ing, or the Clear All Memory operation is in progress.
• The backup was canceled by the user.
• The online connection with the Sysmac Studio was discon-nected.
• The SD Memory Card is dam-aged.
S W500, W501,
W535, W578
102A0000 hex (Ver. 1.03 or later)
Backup Failed
The backup opera-tion ended in an error.
• The capacity of the SD Memory Card is insufficient.
• It was not possible to save the data that was specified for backup.
• The SD Memory Card was removed during a backup oper-ation.
• Failed to back up Unit or slave.
• The backup was canceled by the user.
• Execution of the Save Cam Table instruction or changing the CPU Unit name is in prog-ress.
• The online connection with the Sysmac Studio was discon-nected.
• It was not possible to save the data that was specified for backup to the computer.
• The SD Memory Card is dam-aged.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3-17
3 Error Tables
NJ/NX-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
102B0000 hex (Ver. 1.03 or later)
Restore Operation Failed to Start
An error was detected in pre-execution checks for a restore opera-tion.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• There are no backup files on the SD Memory Card.
• Either the backup files on the SD Memory Card are corrupted or required data is not in the backup files on the SD Memory Card.
• The unit version of the CPU Unit to which to restore the files is older than the unit version of the backup files on the SD Memory Card.
• The model of the CPU Unit to which to restore the files is not the same as the model of the CPU Unit of the backup files on the SD Memory Card.
• Recovery was executed for the SD Memory Card.
• The CPU Unit is write-pro-tected.
• The settings in the restore com-mand file (RestoreCom-mand.ini) are not correct.
• A backup operation is in prog-ress.
• Synchronization, online edit-ing, or the Clear All Memory operation is in progress.
• The online connection with the Sysmac Studio was discon-nected.
• Reading the data for restoration failed because the SD Memory Card is faulty or not formatted correctly.
• The SD Memory Card is dam-aged.
• The database connection ser-vice version of the CPU Unit to which to restore the files is older than the database con-nection service version of the backup files on the SD Memory Card.
• The robot version of the CPU Unit to which to restore the files is older than the robot version of the backup files on the SD Memory Card.
Check the followings for specifi-cation with system-defined vari-ables.
• Restore by system-defined vari-able is set to Do not use in the Controller Setup.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3 Error Tables
• Password of Restore by sys-tem-defined variable in the Controller Setup does not agree with the _Card1Resto-reCmd.Password system-defined variable.
• The DIP switch on the CPU Unit is not set to allow starting the restore of SD Memory Card backups by specification with system-defined variables.
• There is no such folder as specified by the system-defined variable.
• Required files are not set to transfer in the setting of the system-defined variable.
102C0000 hex (Ver. 1.03 or later)
Restore Operation Failed
The restore opera-tion ended in an error.
• It was not possible to read the data to restore.
• The SD Memory Card was removed during a restore oper-ation.
• Failed to restore Unit or slave.
• The SD Memory Card is dam-aged.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3-19
3 Error Tables
NJ/NX-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
10320000 hex (Ver. 1.11 or later)
SD Memory Card Pro-gram Trans-fer Failed to Start
An error was detected in pre-start checks for transfer-ring SD Memory Card programs.
• Program transfer by system-defined variable is set to Do not use in the Controller Setup.
• Password of Program transfer by system-defined variable in the Controller Setup does not agree with the _Card1Prg-TransferCmd.Password sys-tem-defined variable.
• The DIP switch on the CPU Unit is not set to allow starting the SD Memory Card program transfer.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• There is no such folder on the SD Memory Card as specified by the _Card1PrgTransferCmd.Dir-Name system-defined variable.
• There are no backup files in such a folder on the SD Mem-ory Card as specified by the _Card1PrgTransferCmd.Dir-Name system-defined variable.
• Either the backup files in the folder specified by the _Card1PrgTransfer-Cmd.DirName system-defined vari-able on the SD Memory Card are corrupted or required data is not in the backup files on the SD Memory Card.
• The unit version of the CPU Unit to which to transfer the files is older than the unit version of the backup files on the SD Memory Card.
• The model of the CPU Unit to which to transfer the files is not the same as the model of the CPU Unit of the backup files on the SD Memory Card.
• The CPU Unit is write-protected.
• Another backup operation is in progress.
• Synchronization, online edit-ing, or the Clear All Memory operation is in progress.
• Required files are not set to transfer in the setting of the _Card1PrgTransferCmd sys-tem-defined variable.
• Reading the data for the SD Mem-ory Card program transfer failed because the SD Memory Card is faulty or not formatted correctly.
• The SD Memory Card is damaged.
• The database connection ser-vice version of the CPU Unit to which to transfer the files is older than the database connection service version of the backup files on the SD Memory Card.
• The robot version of the CPU Unit to which to transfer the files is older than the robot version of the backup files on the SD Memory Card.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3 Error Tables
103E0000 hex (Version 1.14 or later)
Restore Pre-execution Check Fail-ure
An error was detected in pre-execution checks for specification with system-defined variables for the SD Memory Card restore operation.
• An SD Memory Card is not inserted.
• The SD Memory Card type is not correct.
• The format of the SD Memory Card is not correct.
• There is no such folder on the SD Memory Card as specified by the _Card1RestoreCmd.Dir-Name system-defined variable.
• There are no backup files in such a folder on the SD Mem-ory Card as specified by the _Card1RestoreCmd.DirName system-defined variable.
• Either the backup files in the folder specified by the _Card1RestoreCmd.DirName system-defined variable on the SD Memory Card are corrupted or required data is not in the backup files on the SD Memory Card.
• The unit version of the CPU Unit to which to transfer the files is older than the unit ver-sion of the backup files on the SD Memory Card.
• The model of the CPU Unit to which to transfer the files is not the same as the model of the CPU Unit of the backup files on the SD Memory Card.
• The CPU Unit is write-pro-tected.
• Required files are not set to transfer in the setting of the system-defined variable.
• Reading the data for the SD Memory Card program transfer failed because the SD Memory Card is faulty or not formatted correctly.
• The SD Memory Card is dam-aged.
• The database connection ser-vice version of the CPU Unit to which to transfer the files is older than the database con-nection service version of the backup files on the SD Memory Card.
• The robot version of the CPU Unit to which to transfer the files is older than the robot ver-sion of the backup files on the SD Memory Card.
S W500, W501,
W535, W578
40140000 hex PLC System Information
This event pro-vides internal infor-mation from the PLC Function Mod-ule.
• This event provides internal information from the PLC Func-tion Module. It is recorded to provide additional information for another event.
S W500, W501,
W535, W578
Event code Event name Meaning Assumed cause Level
Reference Maj Prt Min Obs Info
3-21
3 Error Tables
NJ/NX-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
40170000 hex (Ver. 1.03 or later)
Safe Mode The Controller started in Safe Mode.
• The Controller started in Safe Mode.
S W500, W501,
W535, W578
80230000 hex (Ver. 1.05 or later)
NX Message Communica-tions Error
An error has occurred in mes-sage communica-tions.
• The communications cable is broken.
• The communications cable con-nector is disconnected.
• The NX message communica-tions load is high.
S W500, W501,
W535, W578
40150000 hex PLC System Information
This event pro-vides internal infor-mation from the PLC Function
This event pro-vides internal infor-mation from the PLC Function