Omron CJ - 08-2008 - Page 563

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