HP3458A Emulation Mode
H-19
STB?
Purpose
To request the status register value.
Format
STB?
Response
Decimal weight
Bit number
Status register condition
4
2
SRQ command executed
8
3
Power on
16
4
Ready for instructions
32
5
Error (as set by EMASK)
64
6
Service requested (SRQ)
128
7
Data available
Description
The
STB?
query returns a number representing the weighted sum of all set bits in the status register.
The instrument may be programmed to generate an SRQ for specific status register conditions with
the
RQS
command.
Note
The
STB?
query will always show bit 4 as being cleared since the query is being processed, but this
bit can be checked by using serial polling.
SWEEP
Purpose
To program the interval between readings and the number of samples per trigger.
Format
SWEEP <effective_interval>, <#_samples>
Parameter
<effective_interval>
0.001 to 9999999.99
<#_samples>
1 to 99999
Default
Interval: 0
#samples: 1024 (power-on=1)
Query
SWEEP?
Returns two responses separated by a comma: (1) the specified interval, and (2) the
specified number of samples.
Description
The
SWEEP
command specifies the both the effective interval between readings (samples and the total
number of samples taken per trigger event.
Example
SWEEP 0.1, 100
0.1 interval, 100 samples.
T or TRIG
Purpose
To program the trigger event.
Format
T <event>
TRIG <event>
Summary of Contents for 2002
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