Omron CJ2 CPU UNIT SOFTWARE User Manual page 625

Address
Name
Words Bits
A411 A411.00 Special I/O Unit
to to Number Duplica-
A416 A416.15 tion Flags
A417 A417.00 CPU Bus Unit
to Error, Unit Num-
A417.15 ber Flags
A418 A418.00 Special I/O Unit
to to Error, Unit Num-
A423 A423.15 ber Flags
A426 A426.00 Duplicate
to Refresh Error
A426.11 Unit Number
A426.15 Duplicate
Refresh Error
Cause
A427 A427.00 CPU Bus Unit
to Setting Error,
A427.15 Unit Number
Flags
A428 A428.00 Special I/O Unit
to to Setting Error,
A433 A433.15 Unit Number
Flags
CJ2 CPU Unit Software User's Manual
Function
The Duplication Error Flag (A401.13) and the corresponding 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 A411.00 to A416.15 correspond to unit numbers 000 to 05F
(0 to 95).)
CPU Unit operation will stop and the ERR/ALM indicator 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.
ON: Duplication detected
OFF: No duplication
When an error occurs in a data exchange between the CPU Unit
and an CPU Bus Unit, the CPU Bus Unit Error Flag (A402.07) 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.
ON: Error
OFF: No error
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 (A402.06)
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.
ON: Error
OFF: No error
The flag will be turned OFF when the error is cleared.
If the unit number of the Unit is uncertain, none of the flags will be
turned ON.
When A426.13 is ON, these bits: Contain the unit number of the
Special I/O Unit for which duplicate refreshing was performed.
These bits will be cleared when the error is cleared.
Unit number: 000 to 05F (0 to 95)
The flag will be turned OFF when the error is cleared.
When A402.13 (the Duplicate Refresh Error Flag) is ON, this flag
indicates the cause of the error. The CPU Unit will continue oper-
ating and the ERR/ALM indicator on the front of the CPU Unit will
flash.
ON: Duplicated refreshing
When an CPU Bus Unit Setting Error occurs, A402.03 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.
ON: Setting error
OFF: No setting error
When a Special I/O Unit Setting Error occurs, A402.02 and the bit
in these words corresponding to the Unit's unit number are turned
ON. Bits 00 to 15 correspond to unit numbers 0 to F.
ON: Setting error
OFF: No setting error
The CPU Unit will continue operating and the ERR/ALM indicator
on the front of the CPU Unit will flash.
Appendices
Status Write timing/
Status at
after mode Related flags, set-
startup
change tings
Cleared Cleared A401.13
Cleared Cleared A402.07
Cleared Cleared A402.06
Cleared Cleared A402.13
A426.15
Cleared Cleared A402.13,
A426.00 to A426.11
Cleared Cleared Refreshed when
power is turned ON
or I/O is recognized.
A402.03
Cleared Cleared Refreshed when
power is turned ON
or I/O is recognized.
A402.02
A-141