MDO3000 Programmer Manual.pdf - 第958页

Commands Listed in A lphabetical Order Syntax TRIGger:B:TIM e <NR3> TRIGger:B:TIM e? Related Commands TRIGger:B:BY , TRIGger:B:EVENTS:COUNt Arguments <NR3> is a floating point number that specifies the B trigge…

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Commands Listed in Alphabetical Order
Arguments
<NR3> isafloati
ng point number that specifies the threshold in volts.
ECL specifies a preset ECL high level of -1.3V.
TTL specifies a preset TTL high level of 1.4V.
Examples
TRIGGER:B:LOWERTHRESHOLD:D1? might return
TRIGGER:B:LOWERTHRESHOLD:D1 1.4000 indicating the threshold is set to
1.4 volts.
TRIGger:B:STATE
This command specifies the state of B trigger activity. If the B trigger stateison,
the B trigger is part of the triggering sequence. If the B trigger state is off, then
only the A trigger causes the trigger event.
Group
Trigger
Syntax
TRIGger:B:STATE {ON|OFF|<NR1>}
TRIGger:B:STATE?
Related Commands
TRIGger:A:MODe
Arguments
ON specifies that the B trigger is active and in causes trigger events conjunction
with the A trigger.
OFF specifies that only the A trigger causes trigger events.
<NR1> a 0 turns off the B trigger; any other value activates the B trigger.
Examples
TRIGGER:B:STATE ON sets the B trigger to active, making it capable of causing
trigger events.
TRIGGER:B:STATE? might return :TRIGGER:B:STATE 0 indicating that the B
trigger is inactive and that only the A trigger causes trigger events.
TRIGger:B:TIMe
This command specifies B trigger delay time. The B Trigger time applies only if
TRIGger:B:BY is set to TIMe.
Group
Trigger
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-927
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