MDO3000 Programmer Manual.pdf - 第757页
Commands Listed in Alphabetical Order SEARCH:SEARC H<x>:TRIGger:A:LOGIc:P A Ttern:WHEn:LESSLimit This command specifies the ma ximum tim e that the selected pattern may be tru e and still generate an A logic pattern…

Commands Listed in Alphabetical Order
Syntax
SEARCH:SEARCH
<x>:TRIGger:A:LOGIc:PATtern:INPut:CH<x>
{HIGH|LOW|X}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:INPut:CH<x>?
Arguments
HIGH specifies a high logic level.
LOW specifies a low logic level.
X specifies a “don't care” condition.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn
This command specifies the qualifier to be used in a logic pattern search. <x> is
the search number, which is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn
{TRUe|FALSe|LESSthan|Than|EQual|UNEQual}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn?
Arguments
TRUe places a mark when the pattern becomes true.
FALSe places a mark when the pattern becomes false.
LESSthan placesamarkifthespecificpattern is true less than the time set by
the SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit
command.
Than places a mark if the specific pattern is true longer than the specified time set
by the SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:MORELimit
command.
EQual places a mark if the specific pattern is true longer than the time set by
the SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit
command, but less than the specified time set by the SEARCH:SEARCH<x>:
TRIGger:A:LOGIc:PATtern:WHEn:MORELimit command.
UNEQual places a mark if the specific pattern is true less than the time set by
the SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit
command, or longer than the specified time set by the SEARCH:SEARCH<x>:
TRIGger:A:LOGIc:PATtern:WHEn:MORELimit command.
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Commands Listed in Alphabetical Order
SEARCH:SEARC
H<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit
This command specifies the maximum time that the selected pattern may be true
and still generate an A logic pattern search to place a mark. <x> is the search
number, whic
hisalways1
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit
<NR3>
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:LESSLimit?
Arguments
<NR3> is a floating point number that specifies the maximum amount of time
to hold the pattern true.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:MORELimit
This command specifies the minimum time that the sele
cted pattern may be true
and still generate an A logic pattern search to place a mark.
SEARCH<x> is the
search number, which is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:MORELimit
<NR3>
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:PATtern:WHEn:MORELimit?
Arguments
<NR3> is a floating point number that specifies the minimum amount of time
to hold the pattern true.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:CH<x>
This command specifies the channel threshold level for a logic search to determine
wheretoplaceamark.
SEARCH<x> is the search number, which is always 1, and
CH<x> is the channel number, which can be 1–4.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:CH<x> {<NR3>|TTL}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:CH<x>?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-727

Commands Listed in Alphabetical Order
Arguments
<NR3> is a floati
ng point number that specifies the search level, in volts.
TTL specifies a preset TTL high level of 1.4 V.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:MATH
This command specifies the math waveform threshold level for a logic search
to determine where to place a mark.
SEARCH<x> is the search number, which
is always 1.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:MATH {TTL}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:MATH?
Arguments
TTL specifies a preset TTL high level of 1.4 V.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:REF<x>
This command specifies the reference waveform threshold level for a logic search
to determine where to place a mark.
SEARCH<x> is the search number, which is
always 1, and
REF<x> is the reference channel number, which can be 1–4.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:REF<x> {TTL}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:REF<x>?
Arguments
TTL specifies a preset TTL high level of 1.4 V.
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_AMPlitude
This command specifies the threshold to use when searching
the RF Amplitude vs.Time waveform. (Same as the command
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_AMPlitude.)
SEARCH<x> is the search number, which is always 1.
Conditions
MDO4000/B/C models only.
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