MDO3000 Programmer Manual.pdf - 第960页

Commands Listed in A lphabetical Order TRIGger:FREQ uency? (Query Only) Returns the trigger frequency in hert z i f available. If the trigger freque ncy is not currently available, the IEEE Not A Number (NaN = 99.10E+36)…

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Commands Listed in Alphabetical Order
Syntax
TRIGger:EXTer
nal?
TRIGger:EXTernal:PRObe
This command specifies the attenuation factor value of the probe attached tothe
Aux Input connector.
Conditions
For MSO/DPO 4000B series models, MDO4000C series models without an RF
option, and 2-channel MDO3000 models only.
Group
Trigger
Syntax
TRIGger:EXTernal:PRObe <NR3>
TRIGger:EXTernal:PRObe?
Arguments
<NR3> is a floating point number that specifies the attenuation factor of the probe.
Examples
TRIGGER:EXTERNAL:PROBE? might return :TRI GGER:EXTERNAL:PROBE
1.0E1
for a 10X probe.
TRIGger:EXTernal:YUNIts? (Query Only)
Returns the vertical (Y) units of the probe attached to the Aux In connector.
Conditions
For MSO/DPO 4000B series models, MDO4000C series models without an RF
option, and 2-channel MDO3000 models only.
Group
Trigger
Syntax
TRIGger:EXTernal:YUNIts?
Examples
TRIGGER:EXTERNAL:YUNITS? might return TRIGGER:EXTERNAL:YUNITS
“A”
if the probe connected to Aux In is a current probe.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-929
Commands Listed in Alphabetical Order
TRIGger:FREQ
uency? (Query Only)
Returns the trigger frequency in hertz if available. If the trigger frequency is
not currently available, the IEEE Not A Number (NaN = 99.10E+36) value is
returned. Th
e maximum precision of the returned frequency is 12 digits.
Use the DISplay:TRIGFrequency command to enable/disable the calculation of
the trigger
frequency.
Group
Trigger
Syntax
TRIGger:FREQuency?
Related Commands
DISplay:TRIGFrequency
Examples
TRIGGER:FREQUENCY? might return TRIGGER:FREQUENCY 99.10+36
indicating that the trigger frequency is not available.
TRIGger:STATE? (Query Only)
Returns the current state of the triggering system.
Group
Trigger
Syntax
TRIGger:STATE?
Related Commands
TRIGger:A:MODe
Returns
ARMED indicates that the oscilloscope is acquiring pretrigger information.
AUTO indicates that the oscilloscope is in the automatic mode and acquires data
even in the absence of a trigger.
READY indicates that all pretrigger information has been acquired and that the
oscilloscope is ready to accept a trigger.
SAVE indicates that the oscilloscope is in save mode and is not acquiring data.
TRIGGER indicates that the oscilloscope triggered and is acquiring the post trigger
information.
2-930 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Examples
TRIGGER:STATE
?
might return :TRIGGER:STATE ARMED indicating that the
pretrigger data is being acquired.
*TST? (Query Only)
Tests (self-test) the interface and returns a 0.
Group
Miscellaneous
Syntax
*TST?
Examples
*TST? always returns 0.
UNLock (No Query Form)
Unlocks the front panel. The command is equivalent to LOCk NONe.
Group
Miscellaneous
Syntax
UNLock ALL
Related Commands
LOCk
Arguments
ALL specifies that all front-panel buttons and knobs are unlocked.
Examples
UNLOCK ALL unlocks all front-panel buttons and knobs.
USBDevice:CONFigure
Enables or disables the rear USB port for use with Pictbridge printers.
Group
PictBridge
Syntax
USBDevice:CONFigure {DISabled|IMAge|USBTmc}
USBDevice:CONFigure?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-931