MDO3000 Programmer Manual.pdf - 第121页

Command Groups T able 2-41: T rigger Commands (cont.) Command Description TRIGger:B:EDGE:SLOpe This command speci ﬁ es the B edge trigger slope TRIGger:B:EDGE:SOUrce This command speci ﬁ es the B edge trigger source TRIG…

Command Groups

Table 2-41: Trigger Commands (cont.)

Command

Description

TRIGger:A:TIMEOut:T IMe When triggering using the TIMEOut trigger type, this command speciﬁes the

timeout time, in seconds. The default and minimum is 4.0E-9 seconds and the

maximum is 8.0 seconds. The resolution is 800.0E-12 which means that the

increments of time speciﬁed is 800 picoseconds.

TRIGger:A:TYPe This command sets the type of A trigger (edge, logic, pulse, bus or video). If

you set the trigger type to LOGIc, you also need to set the logic trigger class

(logic or setup/hold) using the command TRIGger:A:LOGIc:CLAss.Ifyouset

the trigger type to PULSe, you also need to set the pulse trigger class (runt,

width, transition or timeout), using the command TRIGger:A:PULse:C LAss.

TRIGger:A{:TRANsition|:RISEFall}?

Returns the delta time, polarity, and both upper and lower threshold limits

for the transition time trigger

TRIGger:A{:TRANsition|:RISEFall}:DELTatime This command speciﬁes the delta time used in calculating the transition value

TRIGger:A{:TRANsition|:RISEFall}:POLarity This comm and speciﬁes the polarity for the A pulse transition trigger

TRIGger:A{:TRANsition|:RISEFall}:SOUrce This command speciﬁes the source for transition trigger.

TRIGger:A{:TRANsition|:RISEFall}:WHEn This command speciﬁes the relationship of delta time to transitioning signal

TRIGger:A:TYPe This command speciﬁes the type of A trigger. Once you have set the trigger

type, you may also need to identify the associated trigger class. For details on

selecting Logic and Pulse trigger classes, see TRIGger:A:LOGIc:CLAss and

TRIGger:A:PULse:CLAss respectively.

TRIGger:A:UPPerthreshold:CH<x> Sets the upper threshold for the channel selected

TRIGger:A:UPPerthreshold:RF This command speciﬁes the upper threshold when the internal RF power level

is used as a trigger. This is only applicable to the RUNT trigger type.

TRIGger:A:VIDeo? Returns the video parameters for the A trigger

TRIGger:A:VIDeo:CU STom{:FORMat|:TYP e} This command sets the video trigger format (either interlaced or progressive)

to use for triggering on video signals.

TRIGger:A:VIDeo:CUSTom:LINEPeriod This command sets the l ine period for the standard under test.

TRIGger:A:VIDeo:CU S Tom:SYNCInterval This command sets the sync interval for the standard under test to use for

triggering on video signals. This is only required for BiLevel Custom.

TRIGger:A:VIDeo:HOLD off:FIELD This command sets the video trigger holdoff, in terms of video ﬁelds, to u se for

triggering on video signals.

TRIGger:A:VIDeo:LINE This command sets the video line number to use for triggering on video signals.

TRIGger:A:VIDeo:POLarity This command sets the polarity to use for triggering on video signals.

TRIGger:A:VIDeo:S OU rce This command sets the source channel to use for triggering on video signals

(CH1–4).

TRIGger:A:VIDeo:STANdard This command sets the standard to use for triggering on v ideo signals.

TRIGger:A:VIDeo{:SYNC |:FIELD } This command sets the video ﬁeld to use for triggering on video signals (odd,

even, all ﬁelds, all lines, numeric).

TRIGger:B Sets the B trigger level to 50% or returns the B trigger parameters

TRIGger:B:BY This command speciﬁes B trigger time or event qualiﬁers

TRIGger:B:EDGE?

Returns B trigger edge type parameters

TRIGger:B:EDG E:COUPling This command speciﬁes the type of B trigger coupling

2-90 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual

Command Groups

Table 2-41: Trigger Commands (cont.)

Command

Description

TRIGger:B:EDGE:SLOpe This command speciﬁes the B edge trigger slope

TRIGger:B:EDGE:SOUrce This command speciﬁes the B edge trigger source

TRIGger:B:EVENTS?

Returns the current B trigger events parameter

TRIGger:B:EVENTS:C OU Nt This command speciﬁes the number of events that must occur before the

B trigger occurs

TRIGger:B:LEVel This command speciﬁes the level for the B trigger

TRIGger:B:LEVel:CH<x> This command speciﬁes the level for the B trigger for a speciﬁc channel

TRIGger:B:LEVel:D<x> This command speciﬁes the B trigger level for digital channel <x>

TRIGger:B:LOWerthreshold:CH<x> This command speciﬁes the B trigger lower threshold for the channel selected

TRIGger:B:LOWerthreshold:D<x> Sets or queries the B trigger lower threshold for the digital channel selected

TRIGger:B:STATE Returns the current state of the B trigger

TRIGger:B:TIMe This command speciﬁes the B trigger delay time

TRIGger:B:TYPe This command speciﬁes the type of B trigger

TRIGger:EXTernal? Returns all external trigger-related parameters for the probe connected to the

Aux Input connector.

TRIGger:EXTernal:PRObe This command speciﬁes the attenuation factor value of the probe connected

to the A ux Input connector.

TRIGger:EXTernal:YUNIts? Returns the external trigger vertical (Y) units value

TRIGger:FREQuency? Returns the trigger frequency in hertz, if available

TRIGger:STATE? Returns the current state of the triggering system

Vertical Command Group

Use the commands in the Vertical Command Group to control the vertical setupof

all live (channel) waveforms for acquisition and display of channel, reference,

and math waveforms.

Use the command CH<x>:YUNits to set the vertical units for each channel. The

vertical units affect the “Probe Type” that is shown in the “Probe Setup” menu:

Setting CH<x>:YUNits to “V” causes the probe type to be displayed as

“Voltage”.

When CH1:AMSVIAVOLTs:ENAble is set to OFF, setting CH<x>:YUNits to

“A” causes the probe type to be displayed as “Current”.

Setting CH<x>:YUNits to anything else causes the probe type not to be

displayed (neither “Voltage” nor “Current” are highlighted).

MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-91

Command Groups

Table 2-42: Ver

tical Commands

Command Description

AUXin?

Returns Aux In

put connector parameters

AUXin:PRObe Returns all information concerning the probe attached to Aux Input connector

AUXin:PRObe:AUTOZero Sets the TekVPI probe attached to the Aux Input connector to autozero

AUXin:PRObe:CALibrate:CALIBRATABLe?

This query i

ndicates whether the attached probe is calibratable.

AUXin:PRObe:COMMAND Sets the state of the speciﬁed probe control

AUXin:PRObe:DEGAUss Starts a degauss/autozero cycle on a TekVPI current probe attached to the

Aux Input connector

AUXin:PRObe:DEGAUss:STATE? Returns the degauss state of the TekVPI current probe attached to the Aux

Input co

nnector

AUXin:P

RObe:FORCEDRange

This com

mand speciﬁes the range of the TekVPI probe attached to the Aux

Input connector

AUXin:PRObe:GAIN This command speciﬁes the gain factor of the probe that is attached to the

Aux Input connector

AUXin:PRObe:ID:SERnumber? Returns the serial number of the probe that is attached to the Aux Input

conne

ctor

AUXi

n:PRObe:ID:TYPe?

Retu

rns the type of probe that is attached to the Aux Input connector

AUXi

n:PRObe:RESistance?

Retu

rns the resistance of the probe that is attached to the Aux Input connector

AUX

in:PRObe:SIGnal

Thi

s command speciﬁes the input bypass setting on VPI probes that support

input bypass

AUXin:PRObe:UNIts? Returns the units of measure of the probe that is attached to the Aux Input

connector

CH<x>? Returns vertical parameters for the speciﬁed channel

CH<x>:AMPSVIAVOLTs:ENA ble This command speciﬁes the state of the amps via volts feature for the speciﬁed

hannel

H<x>:AMPSVIAVOLTs:FACtor

his command speciﬁes the amps via volts factor for the speciﬁed channel

CH<x>:BANdwidth This command speciﬁes the bandwidth of the speciﬁed channel

CH<x>:COUPling This command speciﬁes the coupling setting for the speciﬁed channel

CH<x>:DESKew This command speciﬁes the deskew time for the speciﬁed channel

CH<x>:INVert This command speciﬁes the invert function for the speciﬁed channel

CH<x>:LABel This command speciﬁes the waveform label for channel <x>

CH<x>:OFFSet This command speciﬁ es the channel offset

CH<x>:POSition This command speciﬁes the channel vertical position

CH<x>:PRObe? Returns the gain, resistance, units, and ID of the probe that is attached to

the speciﬁed channel

CH<x>:PRObe:AUTOZero Sets the TekV PI probe attached to the speciﬁed channel input to autozero

CH<x>:PRObe:CALibrate This command executes a calibration or initialization for the probe attached

to the auxilliary input, if the probe is calibratable.

CH<x>:PRObe:CALibrate:CALIBRATAB Le? This query returns the state of the probe attached to channel 1–4, either 0 if

the probe is not calibratable, or 1 if the probe is calibratable.

2-92 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual