MDO3000 Programmer Manual.pdf - 第959页
Commands Listed in Alphabetical Order Syntax TRIGger:EXTer nal? TRIGger:EXT ernal:PRObe This command specifies the attenuatio n factor value of the probe attached t ot h e Aux Input connector . Conditions For MSO/DPO 4000…
Commands Listed in Alphabetical Order
Syntax
TRIGger:B:TIM
e <NR3>
TRIGger:B:TIMe?
Related Commands
TRIGger:B:BY
, TRIGger:B:EVENTS:COUNt
Arguments
<NR3> is a floating point number that specifies the B trigger delay time in seconds.
Examples
TRIGGER:B:TIME 4E-6 sets the B trigger delay time to 4 µs.
TRIGGER:B:TIME? might return :TRIGGER:B:TIME 16.0000E-9 indicating
that the B trigger time is set to 16 ns.
TRIGger:B:TYPe
This command specifies the type of B trigger. The only supported B trigger type
is EDGE.
Group
Trigger
Syntax
TRIGger:B:TYPe EDGE
TRIGger:B:TYPe?
Related Commands
TRIGger:A:TYPe
Arguments
EDGE sets the B trigger type to edge.
Examples
TRIGGER:B:TYPE EDGE sets the B trigger type to edge.
TRIGGER:B:TYPE? might return:TRIGGER:B:TYPE EDGE.
TRIGger:EXTernal? (Query Only)
Returns all external trigger-related parameters for the probe attached totheAux
Input connector.
Conditions
For MSO/DPO 4000B series models, MDO4000C series models without an RF
option, and 2-channel MDO3000 models only.
Group
Trigger
2-928 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
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