Keithley 3930A Operator's Manual page 67

SECTION 4
GPIB
Interface
Table 4-5. Status Byte
Bit 1 Descrintion
1 Set (1) Condition 1 Reset (0) Condition
( :MSB)7 0
6
RQS
Always 0 (not used)
. When SRQ is issued.
Always 0 (not used)
l
When status byte is sent.
l
When DCL or SDC is received.
l
When SRQ cause is cleared by
setting SRQ mask bits.
5
Error (SRQ cause)
l
When an error occurs.
l
When error code is requested
and sent using "?ERR".
l
When status byte is sent.
l
When CCL or SIX is received.
4 HOLD
l
When sweep is interrupted due to
l
When sweep is restarted due to
sweep "HOLD". "HOLD" release.
l
When sweep is started during
"HOLD".
l
When sweep is hmwd off.
3 SWEEP in execution . When sweep is started by sweep start. . When sweep is halted due to the
l
When sweep is restarted by releasing end of single sweep or sweep off.
"HOLD".
l
When sweep is paused by
"HOLD".
2 SWEEP stop
l
When sweep is halted due to end of
l
When status byte is sent.
(SRQ cause)
single sweep or sweep off.
l
When DCL or SDC is received.
. When sweep is stopped by "HOLD".
1 SWEEP start
l
When sweep is started by sweep start.
l
When status byte is sent
(SRQ cause)
l
When sweep is restarted by releasing
l
When DCL or SDC is received
"HOLD".
(LSB) 0 Output ready
l
When inquiry response data is ready
l
When status byte is sent.
(SRQ cause) for output.
l
When talker is addressed.
l
When next inquiry message is re-
ceived.
l
When IXL or SK is received
4-11