MDO3000 Programmer Manual.pdf - 第759页

Commands Listed in Alphabetical Order Group Search Syntax SEARCH:SEARCH <x>:TRIGger:A:LO GIc:THReshold:RF _AMPlitude {<NR3>} SEARCH:SEARCH <x>:TRIGger:A:LO GIc:THReshold:RF _AMPlitude? Related Commands …

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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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Commands Listed in Alphabetical Order
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_AMPlitude
{<NR3>}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_AMPlitude?
Related Commands
TRIGger:A:LOGIc:THReshold:RF
Examples
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_AMPlitude 1.5 sets
the search’s threshold to 1.5
V.
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_AMPlitude? might
return 1.5, indicating that the search’s threshold is 1.5V.
Following is an example command sequence showing how to generate a single
search mark on the RF_AMPLitude waveform when the waveform is logic 0
(less than 1.5V):
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_AMPlitude 1.5
SEARCH:SEARCH1:TRIGger:A:LO
GIc:INPut:RF_AMPlitude LOW
SEARCH:SEARCH1:STATE 1
SEARCH:SEARCH1:LIST? :SEARCH:SEARCH1:LIST
RF_AMPLITUDE,2.4702,2.4702,2.4702,-19.0119E-6,0.0E+0,0.0E+0,
0.0E+0
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_FREQuency
This command specifies the threshold to use when searching the RF
Frequency vs. Time waveform. (It does the same thing as the command
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_FREQuency.) This
command is used together with SEARCH:SEARCH<x>:TRIGger:A:LOGIc:
INPut:RF_FREQuency to search for an instance when the RF Frequency vs.
Time waveform goes higher or lower than the specified threshold.
SEARCH<x> is
the search number, which is always 1.
Conditions
MDO4000/B/C models only.
Group
Search
Syntax
SEARCH:SE
ARCH<x>:TRIGger:A:LOGIc:THReshold:RF_FREQuency
{<NR3>}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_FREQuency?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-729
Commands Listed in Alphabetical Order
Related Commands
TRIGger:A:LOG
Ic:THReshold:RF
Examples
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_FREQuency
1.00E+6
sets the search’s threshold to 1 MHz.
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_FREQuency? might
return 1.00E+6, indicating that the search’s threshold is 1 MHz.
Following is an example command sequence showing how to generate a single
search mark on the RF_FREQuency waveform when the waveform is logic 0
(less than 1 MHz):
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_FREQuency
1.00E+6
SEARCH:SEARCH1:TRIGger:A:LOGIc:INPut:RF_FREQuency LOW
SEARCH:SEARCH1:STATE 1
SEARCH:SEARCH1:LIST? :SEARCH:SEARCH1:LIST
RF_FREQuency,2.4702,2.4702,2.4702,-19.0119E-6,0.0E+0,0.0E+0,
0.0E+0
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_PHASe
This command specifies the threshold, in degrees, to use when
searching the RF Phase vs. Time waveform. (It does the same thing as
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_PHASe.) This
command is used together with SEARCH:SEARCH<x>:TRIGger:A:LOGIc:
INPut:RF_PHASe to search for an instance when the RF Phase vs. Time
waveform goes higher or lower than the specified threshold.
SEARCH<x> is the
search number, which is always 1.
Conditions
MDO4000/B/C models only.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_PHASe {<NR3>}
SEARCH:SEARCH<x>:TRIGger:A:LOGIc:THReshold:RF_PHASe?
Related Commands
TRIGger:A:LOGIc:THReshold:RF
Examples
SEARCH:SEARCH1:TRIGger:A:LOGIc:THReshold:RF_PHASe 4.500E+1
sets the search’s threshold to 45 degrees.
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