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Programming in S Mode
Chapter 4
If the Initiator does not indicate a desire to disconnect while waiting for the
GPIB events to occur, the GPIB-SCSI-A will go into the Status phase
immediately after it completes the Command phase, and remains in that
phase until one of the conditions occurs.
S Mode Default Settings
Table 4-1 lists power-on (default) characteristics of the GPIB-SCSI-A and
the functions you can use to change those characteristics.
Table 4-1. GPIB Characteristics
Default
Value
Characteristic
Primary/secondary address
Function
pad = switches
4 through 8
of SW1, sad = none
caddr
End Of String modes
none
eos
Assert EOI* on last byte of writes
yes
eot
ist bit setting0
ist
GPIB-SCSI-A is System Controller
yes
rsc
I/O timeout
10 sec
tmo
Serial poll timeout
.1 sec
———
Buffering method
switches 4 and 6
of SW2
config
224K
config
PP1 (remote)
config
Buffer size
IEEE 488 Parallel Poll subset
GPIB-SCSI-A User Manual
4-10
© National Instruments Corp.