MDO3000 Programmer Manual.pdf - 第952页

Commands Listed in A lphabetical Order TRIGger:B:ED GE:COUPling This command specifies the type of coupling for the B edge trigger . Group T rigger Syntax TRIGger:B:EDG E:COUPling { DC|HFRej|LFRej|N OISErej} TRIGger:B:EDG…

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Commands Listed in Alphabetical Order
TRIGger:B:BY
Selects or returns whether the B trigger occurs after a specified number of events
or a specified period of time after the A trigger.
Group
Trigger
Syntax
TRIGger:B:BY {EVENTS|TI Me}
TRIGger:B:BY?
Related Commands
TRIGger:B:EVENTS:COUNt, TRIGger:B:TIMe,,
Arguments
EVENTS sets the B trigger to take place following a set number of trigger
events after the A trigger occurs. The number of events is specified by
TRIGger:B:
EVENTS:COUNt.
TIMe sets the B trigger to occur a set time after the A trigger event. The time
period is specified by TRIGger:B:
TIMe.
Examples
TRIGGER:B:BY TIME sets the B trigger to occur at a set time after the A trigger
event.
TRIGGER:B:BY? might return :TRIGGER:B:BY EVENTS indicating that the B
trigger takes place following a set number of trigger events after the A trigger
occurs.
TRIGger:B:EDGE? (Query Only)
Returns the source, slope, and coupling for B trigger.
Group
Trigger
Syntax
TRIGger:B:EDGE?
Related Commands
TRIGger:B:EDGE:COUPling,
TRIGger:B:EDGE:SLOpe,
TRIGger:B:EDGE:SOUrce
Examples
TRIGGER:B:EDGE? might return :TRIGGER:B:EDGE:SOURCE CH1; SLOP E
RISE;COUPLING DC
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-921
Commands Listed in Alphabetical Order
TRIGger:B:ED
GE:COUPling
This command specifies the type of coupling for the B edge trigger.
Group
Trigger
Syntax
TRIGger:B:EDGE:COUPling {DC|HFRej|LFRej|NOISErej}
TRIGger:B:EDGE:COUPling?
Related Commands
TRIGger:B:EDGE?
Arguments
DC selects DC trigger coupling.
HFRej selects high-frequency reject coupling.
LFRej selects low-frequency reject coupling.
NOISErej selects DC low sensitivity.
Examples
TRIGGER:B:EDGE:COUPLING DC selects DC for the B trigger coupling.
TRIGGER:B:EDGE:COUPLING? might return : TRIGGER:B:EDGE:COUPLING
HFR
which indicates that the B trigger type is set to high-frequency reject coupling.
TRIGger:B:EDGE:SLOpe
This command specifies the slope for the B trigger.
Group
Trigger
Syntax
TRIGger:B:EDGE:SLOpe {RISe|FALL}
TRIGger:B:EDGE:SLOpe?
Related Commands
TRIGger:B:EDGE?
Arguments
RISe triggers on the rising or positive edge of a signal.
FALL triggers on the falling or negative edge of a signal.
Examples
TRIGGER:B:EDGE:SLOPE FALL sets the B edge trigger to occur on the falling
slope.
2-922 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
TRIGGER:B:EDG
E:SLOPE?
might return :TRIGGER:B:EDGE:SLOPE RISE
indicating that the B edge trigger occurs on the rising slope.
TRIGger:B:EDGE:SOUrce
This command specifies the source for the B trigger.
Group
Trigger
Syntax
TRIGger:B:EDGE:SOUrce {CH1|CH2|CH3|CH4|AUX|LINE|RF}
TRIGger:B:EDGE:SOUrce?
Related Commands
TRIGger:B:EDGE?
Arguments
CH1–4 specifies an analog channel as the B trigger source.
AUX specifies an external trigger using the Aux In connector located on the
front panel of the oscilloscope as the B trigger source. (For MSO/DPO 4000B
series models, MDO4000C series models without an RF option, and 2-channel
MDO3000 models only.)
LINE specifies the AC power line as the B trigger source.
RF specifies to use the internal RF power level as the source. (MDO4000/B/C
models only). Also requires installation of an MDO4TRIG application module.)
Examples
TRIGGER:B:EDGE:SOURCE CH4 sets channel 4 as the input source for the B
trigger.
TRIGGER:B:EDGE:SOURCE? might return :TRI GGER:B:EDGE:SOURCE CH1
indicating that the current input source for the B trigger is channel 1.
TRIGger:B:EVENTS? (Query Only)
Returns the current B trigger events parameter.
Group
Trigger
Syntax
TRIGger:B:EVENTS?
Related Commands
TRIGger:B:EVENTS:COUNt
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-923