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5-26 A-61124 March 1999
Using the Send
command for scanner-
unique commands
Scanner-unique commands may be sent to the scanner during the
Data Transfer phase of a SCSI Send command.
IMPORTANT: The Transfer Type field must be set to 80H.
The following tables illustrate how a scanner-unique DA command
with a data field of 345.6 would be sent:
Command block
Byte
Number Description
Hexadecimal
Value
0 Operation Code = Send 2AH
1 Logical Unit Number = 1 and Reserved = 0 20H
2 Transfer Type = Scanner-Unique
Command
80H
3 Reserved = 0 00H
4 Transfer Identification (MSB) = not used 00H
5 Transfer Identification (LSB) = not used 00H
6 Transfer Length (MSB) = 0 00H
7 Transfer Length = 0 00H
8 Transfer Length (LSB) = 7 07H
9 Vendor Unique, Reserved, Flag, Link = 0 00H
Information sent during Data Transfer phase:
Byte
Number Description
Hexadecimal
Value
0 Scanner-unique Data Field = 3 33H
1 Scanner-unique Data Field = 4 34H
2 Scanner-unique Data Field = 5 35H
3 Scanner-unique Data Field = . 2EH
4 Scanner-unique Data Field = 6 36H
5 Scanner-unique Command Field = D 44H
6 Scanner-unique Command Field = A 41H
7 Transfer Length (MSB) = 0 00H