Sony LIB-D81 Product Description Manual page 129

When the Self-test (SelfTest) bit is 1, the autoloader performs self-diagnostic
processing as programmed. If the self-diagnostic ends without problems, the
command terminates with a GOOD status. However, if the self-diagnostic
discovers a problem, the command terminates with a CHECK CONDITION
status. The sense key is HARD ERROR.
When the Self-test bit is 0, the autoloader performs the diagnostic specified in
the Parameter List. The diagnostic operation returns the diagnostic results. If the
diagnostic operation ends without problems, the command terminates with a
GOOD status. If the self-diagnostic discovers a problem, the results are reported
and the command terminates with a CHECK CONDITION status. The sense
key is HARD ERROR.
Device Off-Line (DevOfL) and Unit-OFF-Line (UNITOFL) are not supported
by the autoloader, therefore they are always 0.
The Parameter List Length field is the number of bytes of the Parameter List
transferred from the host to the autoloader. A Parameter List Length of 0
indicates that there is no data to be transferred, but this is not treated as an error.
However, if there are Pages to be transferred (the PF bit is 1), the autoloader
terminates the command with a CHECK CONDITION status. The sense key is
ILLEGAL REQUEST and ASC/ASCQ is INVALID FIELD IN CDB.
The transferred Diagnostic Page format is as follows.
Bit 7 6
Byte
0
1
2 (MSB)
3
Table 8.19.2 : Diagnostic Page Format
Page Code: The Page Codes supported by the autoloader are as follows:
00h: Return Supported pages
When the Page Code is 00h, the Page Length is 0 and the Parameter List Length
must be 4. If it has another value, the autoloader terminates the command with
a CHECK CONDITION status. The sense key is ILLEGAL REQUEST. In
response to this request, the autoloader returns the supported Page codes in the
DATA IN phase of the RECEIVE DAIGNOSTIC RESULTS command.
80h: Home Position
81h: Cycle pick/place cartridge
82h: Cycle elevator axis
5 4 3 2
Page Code
Reserved
Page Length(n-3)
Chapter 8 SCSI Commands
1 0
(LSB)
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