Omron CJ2 User Manual page 329

Table of Non-fatal Errors
• The table of non-fatal errors is arranged in ascending order of error codes.
• When two or more errors occur at the same time, the error code of the more serious error will be
recorded in A400.
• When the IOM Hold Bit is set to ON, I/O memory will be retained and outputs to the Output Unit will
turn OFF.
Error code
Error
(in A400)
Duplicated 0x008B
Refreshing
Error (CJ1:
Interrupt task
error)
Density IO 0x009A
Error
PLC Setup 0x009B
Error
Backup Mem- 0x00F1
ory Error
Tag Memory 0x00F2
Error
Other Non-fatal 0x00F3
Error (system
work error)
Battery Error 0x00F7
CPU Bus Unit 0x0200 to
Error 0x020F
Special IO Unit 0x0300 to
Error 0x035F or
0x03FF
CPU Bus Unit 0x0400 to
Setup Error 0x040F
Special IO Unit 0x0500 to
Setup Error 0x055F
CJ2 CPU Unit Hardware User's Manual
Error flag
Flag and word
(Auxiliary
data
Area)
A402.13: Dupli- A426: Unit
cated Refresh number where
Error Flag duplicated
refresh error
occurred
A402.12: CJ- A408: Basic I/O
series Basic I/O Unit Error, Slot
Unit Error Flag Number
A402.10: PLC ---
Setup Error
Flag
A315.15: ---
Backup Mem-
ory Error Flag
A315.12: Tag ---
Memory Error
Flag
A402.00: Other ---
Non-fatal Error
(System Work
Error) Flag
A402.04: Bat- ---
tery Error Flag
A402.07: CPU A417: CPU Bus
Bus Unit Error Unit Error, Unit
Flag Number Flags
A402.06: Spe- A418 to A423:
cial I/O Unit Special I/O Unit
Error Flag Error, Unit
Number Flags
A402.03: CPU A427: CPU Bus
Bus Unit Set- Unit Setting
ting Error Flag Error, Unit
Number Flags
A402.02: Spe- A428 to A433:
cial I/O Unit Special I/O Unit
Setting Error Setting Error,
Flag Unit Number
Flags
Probable cause
ON when the Detect Duplicated Refresh Errors
setting in the PLC Setup is set to Detect and one
of the following occurs for the same Special I/O
Unit.
• IORF(097), FIORF(225), IORD(222) or
IOWR(223) in a cyclic task are competing with
FIORF(225), IORF(097), IORD(222) or
IOWR(223) in an interrupt task.
• IORF(097), FIORF(225), IORD(222) or
IOWR(223) was executed in an interrupt task
*1
when I/O was being refreshed.
An error has occurred in a Basic I/O Unit.
There is a setting error in the PLC Setup. The
location of the error is written to A406.
Writing to the built-in flash memory failed.
An error occurred in memory where network
tags are stored.
A non-fatal error other than the non-fatal errors
allocated in A402.01 to A402.15 occurred (such
as an online editing memory error). The details
are stored in A315.
This error occurs when the PLC Setup has been
set to detect battery errors and the CPU Unit's
backup battery is missing or its voltage has
dropped.
An error occurred in a data exchange between
*3
the CPU Unit and a CPU Bus Unit.
An error occurred in a data exchange between
the CPU Unit and a Special I/O Unit.
An installed CPU Bus Unit does not match the
CPU Bus Unit registered in the I/O tables.
An installed Special I/O Unit does not match the
Special I/O Unit registered in the I/O tables.
Appendices
Possible remedy
Check the program. Either disable
detection of duplicated refresh
errors in the PLC Setup or correct
the problem in the program.
*2 Check the Basic I/O Unit to see
whether a fuse needs to be
replaced.
Change the indicated setting to a
valid setting.
Operation may not be possible
the next time power is restored
after a power interruption.
Replace the CPU Unit.
Operation may not be possible
the next time power is restored
after a power interruption.
Replace the CPU Unit.
Operation may not be possible
the next time power is restored
after a power interruption.
Replace the CPU Unit.
Check battery and replace if nec-
essary. Change the PLC Setup
setting if battery-free operation is
being used.
Check the Unit indicated in A417.
Refer to the Unit's operation man-
ual to find and correct the cause
of the error. Restart the Unit by
toggling its Restart Bit or turn the
power OFF and ON again.
Replace the Unit if it won't restart.
Check the Unit indicated in A418
*4 to A423. Refer to the Unit's opera-
tion manual to find and correct the
cause of the error. Restart the
Unit by toggling its Restart Bit or
turn the power OFF and ON
again. Replace the Unit if it won't
restart.
Change the registered I/O table.
*5
*6
A-99