A-135
Appendices
CJ2 CPU Unit Software User’s Manual
A-3 Auxiliary Area
App
A-3-1 Read-only Area (Set by System)
A401 A401.03 Card Transfer
Error Flag
• ON when the contents of the Memory Card were not correctly
read into the CPU Unit when the power was turned ON.
• ON when a program file (.OBJ) that includes network symbols
is transferred when the power is turned ON (CJ2H-CPU6@ and
CJ2M-CPU1@ only.)
Cleared for
error clear
operation.
Cleared ---
A401.05 Version Error
Flag
ON when the unit version of the CPU Unit might not support the
user program that was transferred.
Cleared for
error clear
operation.
Cleared ---
A401.06 FALS Error Flag
(Fatal error)
ON when a non-fatal error is generated by the FALS(006) instruc-
tion. The CPU Unit will continue operating and the ERR/ALM indi-
cator will flash.
The corresponding error code will be written to A400. Error codes
C101 to C2FF correspond to FALS numbers 001 to 511.
ON: FALS(006) executed
OFF: FALS(006) not executed
This flag will be turned OFF when the FALS errors are cleared.
Cleared Cleared Refreshed when
error occurs.
A400
A401.08 Cycle Time
Exceeded Flag
(Fatal error)
ON if the cycle time exceeds the maximum cycle time set in the
PLC Setup (the cycle time monitoring time). CPU Unit operation
will stop and the ERR/ALM indicator on the front of the CPU Unit
will light.
OFF: Cycle time under max.
ON: Cycle time over max.
This flag will be turned OFF when the error is cleared.
Cleared Cleared Refreshed when the
cycle time exceeds
maximum.
PLC Setup (Cycle
time monitoring
time)
A401.09 Program Error
Flag
(Fatal error)
ON when program contents are incorrect.
CPU Unit operation will stop and the ERR/ALM indicator on the
front of the CPU Unit will light. The task number where the error
occurred will be stored in A294 and the program address will be
stored in A298 and A299.
The type of program error that occurred will be stored in bits 8 to
15 of A295. Refer to the description of A295 and to the Program-
ming Manual for more details on program errors.
ON: Error
OFF: No error
This flag will be turned OFF when the error is cleared.
Cleared Cleared A294,
A295,
A298 and A299
A401.10 I/O Setting Error
Flag
(Fatal error)
• ON when the registered I/O tables do not match actual I/O
tables (i.e., when the registered Units do not match the Units
that are actually connected).
• With the CJ2H-CPU6@-EIP, ON when an Interrupt Input Unit is
mounted in a slot other than those shown below.
CJ2H-CPU6@-EIP: CPU Rack slots 0 to 3
CJ2H-CPU6@ or CJ2M-CPU@@: CPU Rack slots 0 to 4
• ON when the registered I/O tables for a CJ2H-CPU6@-EIP or
CJ2M-CPU1@ CPU Unit are downloaded to a CJ2H-CPU6@ or
CJ2M-CPU1@ CPU Unit, or when the registered I/O tables for a
CJ2H-CPU6@ CPU Unit are downloaded to a CJ2H-CPU6@-
EIP or CJ2M-CPU3@ CPU Unit. CPU Unit operation will stop
and the ERR/ALM indicator on the front of the CPU Unit will
light.
ON: Error
OFF: No error
This flag will be turned OFF when the error is cleared.
Cleared Cleared A405.08
A401.11 Too Many I/O
Points Flag
(Fatal error)
ON when the number of I/O points being used in Basic I/O Units
exceeds the maximum allowed for the PLC or when there are
more than 11 Units connected in one Rack.
CPU Unit operation will stop and the ERR/ALM indicator on the
front of the CPU Unit will light.
ON: Error
OFF: No error
This flag will be turned OFF when the error is cleared.
Cleared Cleared A407
Address
Name Function
Status
after mode
change
Status at
startup
Write timing/
Related flags, set-
tings
Words Bits
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