© National Instruments Corp.
B-1
GPIB-SCSI-A User Manual
Appendix B
Status and Message Information
This appendix describes the status and error information that the
GPIB-SCSI-A records as it executes each programming message. Also
described are the SCSI message bytes that the GPIB-SCSI-A responds to or
generates while operating, as well as the Extended Sense keys that the
GPIB-SCSI-A uses. The number preceding each description is the numeric
value in decimal of that bit or code.
Status Bits
S Mode
The following paragraphs describe the conditions represented by the bits in
status for S Mode.
ERR
-32768
The ERR bit is set following any call that results in an
error. The particular error can be determined by
examining the GPIB error and SCSI error values. The
ERR bit is cleared following any call that does not result
in an error.
Note:
By examining this bit, you can check for an error
condition after each call. An error made early in
your application program may not become
apparent until a later instruction. At that time,
the error can be more difficult to locate.
