IEEE-488 Common Commands
l
States stored in memory are not affected by
.
l
If you delete an arbitrary waveform from non-volatile memory after storing the instrument state, the waveform
data is lost and the instrument will not output the waveform when the state is recalled; it will output the built-in
"exponential rise" instead.
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The front panel uses
for state storage.
*RST
Resets instrument to
, independent of
setting.
Parameter
Typical Return
(none)
(none)
Reset the instrument:
*RST
l
Does not affect stored instrument states, stored arbitrary waveforms, or I/O settings; these are stored in non-vol-
atile memory.
l
Aborts a sweep or burst in progress.
*SRE <
enable_value
>
*SRE?
Service Request Enable
. This command enables bits in the
for the
group.
Parameter
Typical
Return
Decimal sum of the bits in the register (table below), default 0. For example, to enable bit 2 (value 4), bit
3 (value 8), and bit 7 (value 128), the decimal sum would be 140 (4 + 8 + 128). Default 0.
+24
Enable bits 3 and 4 in the enable register:
*SRE 24
l
To enable specific bits, specify the decimal value corresponding to the binary-weighted sum of the bits in the reg-
ister. The selected bits are summarized in the "Master Summary" bit (bit 6) of the Status Byte Register. If any of
the selected bits change from 0 to 1, the instrument generates a Service Request signal.
l
clears the event register, but not the enable register.
l
(power-on status clear) determines whether Status Byte enable register is cleared at power on. For example,
preserves the contents of the enable register through power cycles.
l
Status Byte enable register is not cleared by
.
*STB?
Read Status Byte Query
. This command queries the condition register for the
group.
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Agilent 33500 Series Operating and Service Guide