Omron CJ - 09-2009 Operation Manual page 563

Error Processing
Error Program-
ming
Console
display
Basic I/O DENSITY
error I/O ERR
PLC Setup PLC Setup
error ERR
CPU Bus CPU BU
Unit error ERR
Special I/O SIOU ERR 0300 to
Unit error
Battery BATT
error LOW
Error Flag and
code (in word data
A400)
009A A40212: An error has occurred in a
Basic I/O Basic I/O Unit.
Unit Error
A408 contains the errant
Flag
rack/slot number.
A408: Basic
I/O Unit
Error, Slot
Number
009B A40210: There is a setting error in the
PLC Setup PLC Setup. The location of
Error Flag the error is written to A406.
A406: PLC
Setup Error
Location
0200 to A40207: An error occurred in a data
020F CPU Bus exchange between the CPU
Unit Error Unit and a CPU Bus Unit.
Flag
The corresponding flag in
A417: CPU A417 is turned ON to indi-
Bus Unit cate the problem Unit. Bits
Error, Unit A41700 to A41715 corre-
Number spond to unit numbers 0 to F.
Flags
A40206: An error occurred in a data
035F, or Special I/O exchange between the CPU
03FF Unit Error Unit and a Special I/O Unit.
Flag
The corresponding flag in
A418 to A418 to A423 is turned ON
A423: Spe- to indicate the problem Unit.
cial I/O Unit Bits A41800 to A42315 cor-
Error, Unit respond to unit numbers 0 to
Number 95.
Flags
00F7 A40204: This error occurs when the
Battery PLC Setup has been set to
Error Flag detect battery errors and the
CPU Unit's backup battery is
missing or its voltage has
dropped.
Probable cause
Check the errant Unit for blown fuse, etc.
Change the indicated setting to a valid
setting.
Check the Unit indicated in A417. Refer
to the Unit's operation 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.
Check the Unit indicated in A418 to
A423. 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 battery and replace if necessary.
Change the PLC Setup setting if battery-
free operation is being used.
Section 11-2
Possible remedy
515