A-139
Appendices
CJ2 CPU Unit Software User’s Manual
A-3 Auxiliary Area
App
A-3-1 Read-only Area (Set by System)
A402 A402.15 FAL Error Flag
(Non-fatal error)
ON when a non-fatal error is generated by executing FAL(006).
The CPU Unit will continue operating and the ERR/ALM indicator
on the front of the CPU Unit will flash.
The bit in A360 to A391 that corresponds to the FAL number
specified in FALS(006) will be turned ON and the corresponding
error code will be written to A400. Error codes 4101 to 42FF cor-
respond to FAL numbers 001 to 2FF (0 to 511).
ON: FALS(006) error occurred
OFF: FALS(006) not executed
This flag will be turned OFF when the error is cleared.
Cleared Cleared A360 to A391, A400
A403 A403.00
to
A403.08
Memory Error
Location
When a memory error occurs, the Memory Error Flag (A401.15) is
turned ON and one of the following flags is turned ON to indicate
the memory area where the error occurred.
A403.00: User program
A403.04: PLC Setup
A403.05: Registered I/O Table
A403.07: Routing Table
A403.08: CPU Bus Unit Settings
When a memory error occurs, the CPU Unit will continue operat-
ing and the ERR/ALM indicator on the front of the CPU Unit will
flash.
ON: Error
OFF: No error
The corresponding flag will be turned OFF when the error is
cleared.
Cleared Cleared A401.15
A404 A404.00
to
A404.07
I/O Bus Error
Slot Number
Contains the 8-bit binary slot number (00 to 09) where an I/O Bus
Error occurred. If an I/O bus error occurs in the CJ2H-CPU6@-
EIP built-in EtherNet/IP section, 0B hex will be stored. When the
End Cover is not connected to the CPU Rack or an Expansion
Rack, F hex will be stored.
CPU Unit operation will stop and the ERR/ALM indicator on the
front of the CPU Unit will light.
00 to 09 (slot number 00 to 09)
The I/O Bus Error Flag (A401.14) will be ON.
This flag will be turned OFF when the error is cleared.
Cleared Cleared A401.14
A404.08
to
A40.415
I/O Bus Error
Rack Number
Contains the 8-bit binary rack number (00 to 03) where an I/O Bus
Error occurred. If an I/O bus error occurs in the CJ2H-CPU6@-
EIP built-in EtherNet/IP section, 0B hex will be stored. When the
End Cover is not connected to the CPU Rack or an Expansion
Rack, F hex will be stored.
CPU Unit operation will stop and the ERR/ALM indicator on the
front of the CPU Unit will light.
00 to 03 (rack number 00 to 03)
The I/O Bus Error Flag (A401.14) will be ON.
This flag will be turned OFF when the error is cleared.
Cleared Cleared A401.14
A405 A405.08 Interrupt Input
Unit Position
Error Flag
ON when the Interrupt Input Unit is not connected in the following
range. If this flag turns ON, an I/O setting error will occur (fatal
error), and operation will stop.
• CJ2H-CPU6@-EIP: CPU Rack slots 0 to 3 (the 4 Unit on the
right of the CPU Unit)
• CJ2H-CPU6@: CPU Rack slots 0 to 4 (the 5 Units on the right
of the CPU Unit)
An error will also occur if the Unit is physically mounted in the
range given above but it is not allocated in this range in the I/O
tables with a dummy unit registration.
Cleared Cleared A401.10
A405.15 Peripheral Ser-
vicing Too Long
Flag
Turns ON when the peripheral servicing time in a Parallel Pro-
cessing Mode exceeds 2 s. This will also cause a cycle time error
and operation will stop.
ON: Too long
OFF: Not too long
Cleared Cleared A268
Address
Name Function
Status
after mode
change
Status at
startup
Write timing/
Related flags, set-
tings
Words Bits
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