617
Auxiliary Area Appendix C
A404 A40400
to
A40407
I/O Bus Error
Slot Number
Contains the 8-bit binary slot number (00 to 09)
where an I/O Bus Error occurred. When the End
Cover is not connected to the CPU Rack or an
Expansion Rack, 0E hex will be stored.
CPU Unit operation will stop and the ERR/ALM indi-
cator on the front of the CPU Unit will light. The I/O
Bus Error Flag (A40114) will be ON.
00 to 09 (slot number 00 to 09)
(This flag will be turned OFF when the error is
cleared.)
Cleared Cleared A40114
A40408
to
A40415
I/O Bus Error
Rack Number
Contains the 8-bit binary rack number (00 to 03)
where an I/O Bus Error occurred. When the End
Cover is not connected to the CPU Rack or an
Expansion Rack, 0E hex will be stored.
CPU Unit operation will stop and the ERR/ALM indi-
cator on the front of the CPU Unit will light. The I/O
Bus Error Flag (A40114) will be ON.
00 to 03 (rack number 00 to 03)
(This flag will be turned OFF when the error is
cleared.)
Cleared Cleared A40114
A405 A40508 Interrupt Input
Unit Position
Error Flag
ON when the Interrupt Input Unit is not connected in
one of the five positions (slots 0 to 4) next to the CPU
Unit on the CPU Rack.
Even if a Unit is physically in one of the first 5 posi-
tions, a Dummy Unit can be registered in the I/O
table, causing a Unit to be defined in a position differ-
ent from its physical position.
1: Position not correct
0: Position correct
(This flag will be turned OFF when the error is
cleared.)
Cleared Cleared A40110
Not supported by
CJ1@-CPU@@ CPU
Units
A40515 Peripheral
Servicing Too
Long Flag
Turns ON when the peripheral servicing time in a
Parallel Processing Mode exceeds 2 s. This will also
cause a cycle time error and operation will stop.
1: Too long (Parallel processing cannot be used.)
0: Not too long (Parallel processing can be used.)
Cleared Cleared A268
(CJ1-H CPU Units
only)
A406 All PLC Setup
Error Location
When there is a setting error in the PLC Setup, the
location of that error is written to A406 in 4-digit hexa-
decimal. The location is given as the address dis-
played on a Programming Console.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
(A406 will be cleared when the cause of the error is
eliminated.)
0000 to 01FF hexadecimal
Cleared Cleared A40210
Address Name Function Status
after
mode
change
Status
at star-
tup
Write timing/
Related flags,
settings
Words Bits
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