MDO3000 Programmer Manual.pdf - 第943页

Commands Listed in Alphabetical Order Examples TRIGGER:A:VID EO? might return :TRIGGER:A:V IDE O:STANDARD BILEVELCUSTOM ;SYNC ALLLINE S;LINE 4; HOL DOFF:FIELD 0.0E+0;:TRIGG ER:A:VIDEO:POLAR ITY POSITIVE ;CUSTOM:FORMAT PR…

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Commands Listed in Alphabetical Order
TRIGger:A:UP
Perthreshold:RF
This command specifies the upper threshold when the internal RF power level is
used during runt triggering. To specify the lower threshold for the RUNT trigger
type as well a
s the single threshold for the Pulse and Timeout trigger types, use
the command TRIGger:A:LOWerthreshold:RF. To choose the RUNT trigger type,
use the command TRIGger:A:PULse:CLAss. To specify RF power as a source
during runt triggering, use TRIGger:A:RUNT:SOUrce.
Conditions
MDO4000/B/C models only. Also requires installation of an MDO4TRIG
application module.
Group
Trigger
Syntax
TRIGger:A:UPPerthreshold:RF {<NR3>}
TRIGger:A:UPPerthreshold:RF?
Related Commands
TRIGger:A:TYPe, TRIGger:A:LOWerthreshold:RF
Arguments
<NR3> is a floating point number that specifies the threshold to use, in the
currently selected RF units (using RF:UNIts). The range is (ref level – 40 dBm) to
(ref level + 10 dBm), but never less than –65 dBm or more than +30 dBm.
Examples
TRIGger:A:UPPerthreshold:RF —1.000E+1 sets the threshold to –10 dBm.
TRIGger:A:UPPerthreshold:RF? might return -30.0000, indicating that the
threshold set to –30.000 dBm (assuming the units are currently set to dBm).
TRIGger:A:VIDeo? (Query Only)
Returns the A trigger video parameters.
Conditions
This command requires a DPO4VID application module to use any standard
besides NTSc, PAL, or SECAM, except for MDO3000 models, which do not
require an application module.
Group
Trigger
Syntax
TRIGger:A:VIDeo?
2-912 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Examples
TRIGGER:A:VID
EO?
might return :TRIGGER:A:V IDEO:STANDARD
BILEVELCUSTOM;SYNC ALLLINES;LINE 4; HOLDOFF:FIELD
0.0E+0;:TRIGGER:A:VIDEO:POLARITY POSITIVE;CUSTOM:FORMAT
PROGRESSIVE;LINEPERIOD 63.5600E-6;SYNCINTERVAL 4.7200E-6
TRIGger:A:VIDeo:CUSTom{:FORMat|:TYPe}
This command sets the video trigger format (either interlaced or progressive)
to use for triggering on video signals. To use this command, you must also
set the video standard to
BILevelcustom or TRILevelcustom (using
TRIGger:A:VIDeo:STANdard).
Conditions
This command requires a DPO4VID application module to use any standard
besides NTSc, PAL, or SECAM, except for MDO3000 models, which do not
require an application module.
Group
Trigger
Syntax
TRIGger:A:VIDeo:CUSTom{:FORMat|:TYPe}
{INTERLAced|PROGressive}
TRIGger:A:VIDeo:CUSTom{:FORMat|:TYPe}?
Arguments
INTERLAced argument sets the format to interlaced video lines.
PROGressive argument
sets the format to progressive video lines.
Examples
TRIGGER:A:VIDEO:CUSTOM:FORMAT PROGRESSIVE sets the custom format for
the A video trigger t
o progressive lines.
TRIGGER:A:VIDEO:CUSTOM:FORMAT? might return :TRIGGER:A:VIDEO:
CUSTOM:FORMAT INTERLACE D
indicating that interlaced is selected as the
custom format for the A video trigger.
TRIGger:A:VIDeo:CUSTo m:LINEPeriod
This command sets the line period for the standard under test. To use this
command, you must also set the video standard to
BILevelcustom or
TRILevelcustom (using TRIGger:A:VIDeo:STANdard).
Conditions
This command requires a DPO4VID application module to use any standard
besides NTSc, PAL, or SECAM, except for MDO3000 models, which do not
require an application module.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-913
Commands Listed in Alphabetical Order
Group
Trigger
Syntax
TRIGger:A:VIDeo:CUSTom:LINEPeriod <NR3>
TRIGger:A:VIDeo:CUSTom:LINEPeriod?
Arguments
<NR3> is the custom video line period.
Examples
TRIGGER:A:VIDEO:CUSTOM:LINEPERIOD 50.5E-6 sets the video line period
to 50.5 μs.
TRIGGER:A:VIDEO:CUSTOM:LINEPERIOD? might return
TRIGGER:A:VIDEO:CUSTOM:LINEPERIOD 63.5600E-6 indicating
the video line period is set to 63.56 μs.
TRIGger:A:VIDeo:CUSTom: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. To use
this command, you must also set the video standard to
BILevelcustom (using
TRIGger:A:VIDeo:STANdard).
Conditions
This command requires a DPO4VID application module to use any standard
besides NTSc, PAL, or SECAM, except for MDO3000 models, which do not
require an application module.
Group
Trigger
Syntax
TRIGger:A:VIDeo:CUSTom:SYNCInterval <NR3>
TRIGger:A:VIDeo:CUSTom:SYNCInterval?
Arguments
<NR3> is the sync interval.
Examples
TRIGGER:A:VIDEO:CUSTOM:SYNCINTERVAL 4.0E-6 sets the sync interval is
set to 4.0 μs.
TRIGGER:A:VIDEO:CUSTOM:SYNCINTERVAL? might return
TRIGGER:A:VIDEO:CUSTOM:SYNCINTERVAL 4.7200E-6 indicating the sync
interval is set to 4.72 μs.
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