MDO3000 Programmer Manual.pdf - 第764页

Commands Listed in A lphabetical Order SEARCH:SEARCH 1:TRIGger:A:LOWe rthreshold:RF_F REQuency? might return 100.0E+6, indicating that the lower threshold has b een set to 100 MH z. Following is a n example command seque…

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Commands Listed in Alphabetical Order
Examples
SEARCH:SEARCH
1:TRIGger:A:LOWerthreshold:RF_AMPlitude 0.1
sets
the lower threshold to 0.1V.
SEARCH:SEARC
H1:TRIGger:A:LOWerthreshold:RF_AMPlitude?
might
return 1.00E–1, indicating that the lower threshold has been set to 0.1V.
Following i
s 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:LOWerthreshold:RF_AMPlitude 1.5
SEARCH:SE
ARCH1:TRIGger:A:LOGIc: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:LOWerthreshold:RF_FREQuency
This command specifies the threshold for RF Frequency vs. Time trace searches.
For runt and transition searches, this level is the lower threshold. For other search
types, this is the single threshold.
(To specify the upper threshold for runt and transition searches, use the command
SEARCH:SEARCH<x>:TRIGger:A:UPPerthreshold:RF_FREQuency.)
Conditions
MDO4000/B/C models only.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_FREQuency
{<NR3>}
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_FREQuency?
Related Commands
TRIGger:A:LOWerthreshold:RF, SEARCH:SEARCH<x>:TRIGger:A:
UPPerthreshold:RF_FREQuency
Arguments
<NR3> is a floating point number that specifies the threshold for the time domain
trace, in Hz.
Examples
SEARCH:SEARCH1:TRIGger:A:LOWerthreshold:RF_FREQuency
100.0E+6
sets the lower threshold to 100 MHz.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-733
Commands Listed in Alphabetical Order
SEARCH:SEARCH
1:TRIGger:A:LOWerthreshold:RF_FREQuency?
might
return 100.0E+6, indicating that the lower threshold has been set to 100 MHz.
Following is a
n 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:LOWerthreshold:RF_FREQuency 1.00E+6
SEARCH:SEA
RCH1: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:LOWerthreshold:RF_PHASe
This command specifies the lower threshold, in degrees, for searching the RF
Phase vs. Time waveform. For runt and transition searches, this level is thelower
threshold. For other search types, this is the single threshold.
(To specify the upper threshold for runt and transition searches, use the command
SEARCH:SEARCH<x>:TRIGger:A:UPPerthreshold:RF_PHASe.)
Conditions
MDO4000/B/C models only.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_PHASe {<NR3>}
SEARCH:SEARCH<x>:TRIGger:A:LOWerthreshold:RF_PHASe?
Related Commands
TRIGger:A:LOWerthreshold:RF
Arguments
<NR3> is a floating point number that specifies the threshold for the time domain
trace, in degrees.
Examples
SEARCH:SEARCH1:TRIGger:A:LOWerthreshold:RF_PHASe 15 sets the
lower threshold for the RF Phase vs. time trace to 15 degrees.
SEARCH:SEARCH1:TRIGger:A:LOWerthreshold:RF_PHASe? might return
0.0e+0, indicating that the trace is not turned on.
2-734 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Following is an
example command sequence showing how to generate a single
search mark on the RF_PHASe waveform when the waveform is logic 0 (less
than 45 degrees):
SEARCH:SEARCH1:TRIGger:A:LOWerthreshold:RF_PHASe 4.500E+1
SEARCH:SEA
RCH1:TRIGger:A:LOGIc:INPut:RF_PHASe LOW
SEARCH:SEARCH1:STATE 1
SEARCH:SEARCH1:LIST? :SEARCH:SEARCH1:LIST
RF_PHASe,2.4702,2.4702,2.4702,-19.0119E-6,0.0E+0,0.0E+0,
0.0E+0
SEARCH:SEARCH<x>:TRIGger:A:PULSEWidth:HIGHLimit
This command specifies the upper limit, in seconds, when searching the record
for pulses whose widths are within or outside of a specified range of two values.
(Use SEARCH:SEARCH<x>:TRIGger:A:PULSEWidth:LOWLimit to specify
the lower limit of the range.)
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:PULSEWidth:HIGHLimit <NR3>
SEARCH:SEARCH<x>:TRIGge
r:A:PULSEWidth:HIGHLimit?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:PULSEWidth:WHEn, SEARCH:
SEARCH<x>:TRIGger:A:PULSEWidth:LOWLimit
Arguments
<NR3> is a floating point number that represents the higher value of a range.
Examples
To find all pulses in the waveform record with durations (widths) that fall outside
of the range of 100 nanoseconds to 110 nanoseconds:
SEARCH:SEARCH1:TRIGger:A:PULSEWidth:LOWLimit 100.0E-9
SEARCH:SEARCH1:TRIGger:A:PULSEWidth:HIGHLimit 110.0E-9
SEARCH:SEARCH1:TRIGger:A:PULSEWidth:WHEn OUTside
SEARCH:SEARCH<x>:TRIGger:A:PULSEWidth:LOWLimit
This command specifies the lower limit, in seconds, when searching the record
for pulses whose widths are within or outside of a specified range of two values.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-735