619
Auxiliary Area Appendix C
A411 to
A416
A41100
to
A41615
Special I/O
Unit Number
Duplication
Flags
The Duplication Error Flag (A40113) and the corre-
sponding flag in A411 through A416 will be turned
ON when a Special I/O Unit’s unit number has been
duplicated.
Bits 00 to 15 correspond to unit numbers 0 to F.
(Bits A41100 to A41615 correspond to unit numbers
000 to 05F (0 to 95).)
CPU Unit operation will stop and the ERR/ALM indi-
cator on the front of the CPU Unit will light.
The corresponding bit will also be turned ON when
the Special I/O Unit’s words are also allocated to a
Basic I/O Unit on an Expansion Rack because of the
Expansion Rack’s starting word setting.
1: Duplication detected
0: No duplication
Cleared Cleared A40113
A417 A41700
to
A41715
CPU Bus Unit
Error, Unit
Number Flags
When an error occurs in a data exchange between
the CPU Unit and an CPU Bus Unit, the CPU Bus
Unit Error Flag (A40207) is turned ON and the bit in
A417 corresponding to the unit number of the Unit
where the error occurred is turned ON. Bits 00 to 15
correspond to unit numbers 0 to F.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
1: Error
0: No error
Cleared Cleared A40207
A418 to
A423
A41800
to
A42315
Special I/O
Unit Error,
Unit Number
Flags
When an error occurs in a data exchange between
the CPU Unit and a Special I/O Unit, the Special I/O
Unit Error Flag (A40206) will be turned ON.
Each bit corresponds to a unit number. Bit 00 in A418
to bit 15 in A423 correspond to unit numbers 0 to 95.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
1: Error
0: No error
If the unit number of the Unit is uncertain, none of the
flags will be turned ON.
(The flag will be turned OFF when the error is
cleared.)
Cleared Cleared A40206
A426 A42600
to
A42611
Interrupt Task
Error, Unit
Number
An attempt was made to refresh a Special I/O Unit’s
I/O from an interrupt task with IORF(097) while the
Unit’s I/O is being refreshed by cyclic I/O refreshing
(duplicate refreshing). A42600 to A42611: contain
the Special I/O Unit’s unit number.
These bits will be cleared when the error is cleared.
Unit number: 000 to 05F (0 to 95)
Cleared Cleared A40213
A42615
A42615 Interrupt Task
Error Cause
Flag
When A40213 (the Interrupt Task Error Flag) is ON,
this flag indicates the cause of the error. The CPU
Unit will continue operating and the ERR/ALM indica-
tor on the front of the CPU Unit will flash.
1: Duplicated refreshing
Cleared Cleared A40213,
A42600 to A42611
A427 A42700
to
A42715
CPU Bus Unit
Setting Error,
Unit Number
Flags
When an CPU Bus Unit Setting Error occurs, A40203
and the bit in this word corresponding to the Unit’s
unit number are turned ON. Bits 00 to 15 correspond
to unit numbers 0 to F.
The CPU Unit will continue operating and the ERR/
ALM indicator on the front of the CPU Unit will flash.
1: Setting error
0: No setting error
Cleared Cleared Refreshed when power
is turned ON or I/O is
recognized.
A40203
Address Name Function Status
after
mode
change
Status
at star-
tup
Write timing/
Related flags,
settings
Words Bits
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