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A.4 Commands
Appendix A-47
a. PF (page format) : Byte 1
This scanner ignores PF.
b. SLFTST (self test) : Byte 1
This value is 1 on this scanner.
c. DO (device offline), UO (unit offline) : Byte 1
This scanner ignores DO and UO.
d. Parameter list length: Bytes 3 to 4
This scanner does not support parameter list length.
(2) Contents of self-test
The contents of self-test shall be an equivalent of NOP (Non Operation), provided that CHECK
CONDITION is reported if error information is withheld in the unit.
(3) Response
This scanner reports as follows:
a. Normal
The GOOD status is returned.
• Status: B’00000’ (GOOD)
• Sense key: X’0’ (NO SENSE)
b. Abnormal
If error information is being withheld, the following status is returned:
• Status: B’00001’ (CHECK CONDITION)
• Sense key: Error information being withheld
1
Byte 0
2
3
4
5
Operation code X’1D’
Logical unit number
(Reserved)
(MSB)
Parameter list length
(LSB)
Control byte
7
6
5
4
3
2
1
0
(Reserved)
PF
SLFTST
D0
U0