10 CPU Unit Functions
10-36
CJ2 CPU Unit Software User’s Manual
z Basic I/O Unit Error Management
The following table gives the error information related to Basic I/O Units.
Auxiliary Area Flags and Words
Name Address Description
Basic I/O Unit Error Flag
(Non-fatal error)
A402.12 ON when an error has occurred in a Basic I/O Unit.
Basic I/O Unit Error, Rack Number A408.08 to
A408.15
Contains the binary rack number where the error
occurred (when A402.12 is ON) when an error has
occurred in a Basic I/O Unit.
Basic I/O Unit Error, Slot Number A408.00 to
A408.07
Contains the binary slot number where the error occurred
(when A402.12 is ON) when an error has occurred in a
Basic I/O Unit.
Basic I/O Unit Status Area (rack 0
slot 0 to rack 3 slot 9)
A050.00 to
A069.15
Indicates alarm status (load short-circuit protection) for
Basic I/O Units.
Interrupt Input Unit Position Error
Flag
A405.08 ON when the Interrupt Input Unit is not connected in one
of the four positions (slots 0 to 3) next to the CPU Unit on
the CPU Rack.
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