MDO3000 Programmer Manual.pdf - 第778页

Commands Listed in A lphabetical Order Group Search Syntax SEARCH:SEARCH <x>:TRIGger:A{:T RANsition|:RISE Fall}:POLarity {EITher|NEGat ive|POSitive} SEARCH:SEARCH <x>:TRIGger:A{:T RANsition|:RISE Fall}:POLari…

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Commands Listed in Alphabetical Order
selected using
SEARCH:SEARCH<x>:TRIGger:A:TYPe.
SEARCH<x> is the
search number, which is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:TIMEOut:TIMe <NR3>
SEARCH:SEARCH<x>:TRIGger:A:TIMEOut:TIMe?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:TYPe
SEARCH:SEARCH<x>:TRIGger:A:TIMEOut:POLarity
SEARCH:SEARCH<x>:TRIGger:A:TIMEOut:SOUrce
Arguments
<NR3> is a floating point number that specifies the timeout time, in seconds. The
default is 8.0000E-9.
Examples
SEARCH:SEARCH1:TRIGger:A:TIMEOut:TIMe 4.0E-9 specifies the timeout
time of 4.0 nsec.
SEARCH:SEARCH1:TRIGger:A:TIMEOut:TIMe? might return 8.0000E-9,
which is the default.
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:DELTatime
This command specifies the transition delta time setting to be used as the value
to compare against when a transition time is found. <
SEARCH<x> is the search
number, which is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:DELTatime
<NR3>
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:DELTatime?
Arguments
<NR3> is a floating point number that specifies the transition time, in seconds.
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:POLarity
This command specifies the polarity setting for an transition search to determine
wheretoplaceamark.
SEARCH<x> is the search number, which is always 1.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-747
Commands Listed in Alphabetical Order
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:POLarity
{EITher|NEGative|POSitive}
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:POLarity?
Arguments
POSitive specifies that a pulse edge must traverse from the lower (most
negative) to higher (most positive) level for transition searching to occur.
NEGative specifies that a pulse edge must traverse from the upper (most positive)
to lower (most negative) level for transition searching to occur.
EITher specifies either positive or negative polarity.
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:SOUrce
This command specifies the source for a transition search to determine whereto
place a mark.
SEARCH<x> is the search number, which is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:SOUrce
{CH1|CH2|CH3|CH4|MATH|REF1|REF2|REF3|REF4|RF_AMPlitude|
RF_FREQuency|RF_PHASe}
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:SOUrce?
Arguments
CH1–CH4 specifies one input channel as the source.
MATH specifies the math waveform as the source.
REF1–REF4 specifies a reference waveform as the source.
RF_AMPlitude|RF_FREQuency|RF_PHASe specify an RF time
domain trace as the source. (MDO4000/B/C models only.) Also requires
installation of an MD
O4TRIG application module.)
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:WHEn
This command specifies the condition for a transition search. SEARCH<x> is
the search number, which is always 1.
Group
Search
2-748 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
SEARCH:SEARCH
<x>:TRIGger:A{:TRANsition|:RISEFall}:WHEn
{SLOWer|FASTer|EQual|UNEQual}
SEARCH:SEARCH<x>:TRIGger:A{:TRANsition|:RISEFall}:WHEn?
Arguments
FASTer sets the search to occur when the transitioning signal is faster than the set
volts/second rate.
SLOWer sets the search to occur when the transitioning signal is slower than the
set volts/second rate.
EQual sets the search to occur when the transitioning signal is equal to the set
volts/second rate within a ±5% tolerance.
UNEQual sets the search to occur when the transitioning signal is not equal to
the set volts/second rate ±5%.
SEARCH:SEARCH<x>:TRIGger:A:TYPe
This command specifies the search type to determine where to place a mark. The
default search type is
EDGe. SEARCH<x> is the search number, which is always 1.
NOTE. A series o f example command sequences showing differe
nt searches and
triggers is included as an appendix. (See page F-1, Search and Trigger Command
Sequence Examples.)
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:TYPe
{EDGe|PULSEWidth|SETHold|RUNt|TRANsition|LOGIc|TIMEOut|BUS
(with t he appropria te application module i
nstalled)}
SEARCH:SEARCH<x>:TRIGger:A:TYPe?
Arguments
EDGe is the default search. An edge search occurs when a signal
passes through a specified voltage level in a specified direction and is
controlled by the SEARCH:SEARCH<x>:TRIGger:A:EDGE:SOUrce and
SEARCH:SEARCH<x>:TRIGger:A:EDGE:SL
Ope commands.
PULSEWIdth searches when a pulse is found that has the specified
polarity, and is either inside or outside the limits as specified by
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit and
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:MORELimit.
The polarity is selected using the SEARCH:SEARCH<x>:TRIGger:A:RUNT:
POLarity command.
SETHold specifies a setup and hold search.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-749