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Command Groups T able 2-41: T rigger Commands (cont.) Command Description TRIGger:A:TIMEOut:T IM e When triggering using the TIMEOut trigger type, this command speci ﬁ es the timeout time, in seconds. The default and min…

Command Groups

Table 2-41: Trigger Commands (cont.)

Command

Description

TRIGger:A:PULSEWidth:LOWLimit This command speciﬁes the lower limit to use, in seconds, when triggering

on detection of a pulse whose duratio n i s inside or outside a range of two

values. (Use TRIGger:A:PULSEWidth:HIGHLimit to specify the upper limit

of the range.)

TRIGger:A:PULSEWidth:POLarity This command speciﬁes the polarity for the A pulse width trigger

TRIGger:A:PULSEWidth:SOUrce This command speciﬁes the source for the pulse width trigger

TRIGger:A:PULSEWidth:WHEn This command speciﬁes to trigger when a pulse is detected with a

width (duration) that is less than, greater than, equal to, or unequal to a

speciﬁed value (set using TRIGger:A:PULSEWidth:WIDth), OR whose

width falls outside of or within a speciﬁed range of two values (set using

TRIGger:A:PULSEWidth:LOWLimit and TRIG ger:A:PULSEWidth:HIG HLimit ).

TRIGger:A:PULSEWidth:WIDth This command speciﬁes the pulse width (duration), in seconds, for triggering

on pulses whose widths are greater than, less than, equal to, or not equal

to the speciﬁed value.

TRIGger:A:RUNT ?

Returns the current A runt pulse trigger logic parameters

TRIGger:A:RUNT:POLarity This command speci ﬁes the polarity for the A pulse runt trigger

TRIGger:A:RUNT:SOUrce This command speciﬁes the source for the A pulse trigger

TRIGger:A:RUNT:WHEn This command speciﬁes the type of pulse width the trigger checks for when it

uncovers a runt

TRIGger:A:RUNT:WIDth This command speciﬁes the minimum width for A pulse runt trigger

TRIGger:A:SETH old? Returns settings for setup and hold violation triggering

TRIGger:A:SETHo ld:C LOCk? Returns clock edge polarity, voltage threshold and source input for setup/hold

triggering

TRIGger:A:SETHo ld:C LOC k:ED G E This command speciﬁes the clock edge polarity for setup and hold triggering

TRIGger:A:SETHo ld:C LOC k:SOUrce This command speciﬁes the clock source for the A logic trigger setup and

hold input

TRIGger:A:SETHold:CLOCk:THReshold This command speciﬁes the clock voltage threshold for setup and hold trigger

TRIGger:A:SETHo ld:D ATa? Returns the voltage threshold and data source for the setup/hold trigger

TRIGger:A:SETHold:DATa:SOUrce This command speciﬁes the data source for the setup and hold trigger

TRIGger:A:SETHold:DATa:THReshold This command speciﬁes the data voltage threshold for setup and hold trigger

TRIGger:A:SETH old:HOLDTime This command speciﬁes the hold time for the setup and hold violation triggering

TRIGger:A:SETHo ld:SETTime This command speciﬁes the setup time for setup and hold violation triggering

TRIGger:A:SETHold:THReshold:CH<x> Sets or queries the threshold for the channel

TRIGger:A:SETHold:THReshold:D<x> Sets the A trigger setup and hold threshold for the selected digital channel

TRIGger:A:TIMEOut:PO Larity When triggering using the TIMEOut trigger type, this commands speciﬁes

the polarity to be used.

TRIGger:A:TIMEOut:SO Urce When triggering using the TIMEOut trigger type, this command speciﬁes the

source. The available sources are live channels, external (or auxillary) input,

and digital c hannels. The default is channel 1.

MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-89

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