MDO3000 Programmer Manual.pdf - 第944页

Commands Listed in A lphabetical Order Group T rigger Syntax TRIGger:A:VID eo:CUSTom:LINEPe riod <NR3> TRIGger:A:VID eo:CUSTom:LINEPe riod? Arguments <NR3> is the custom video line period. Examples TRIGGER:A:…

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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.
2-914 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
TRIGger:A:VI
Deo:HOLDoff:FIELD
This command sets the video trigger holdoff, in terms of video fields, to use for
triggering on video signals.
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:HOLDoff:FIELD <NR3>
TRIGger:A:VIDeo:HOLDoff:FIELD?
Arguments
<NR3> argument is a real number from 0.0 to 8.5 in increments of 0.5. The
argument sets the number of fields that the oscilloscope waits before rearming
the video trigger.
Examples
TRIGGER:A:VIDEO:HOLDOFF:FIELD? might return
:TRIGger:A:VIDeo:HOLdoff:FIELD 5 indicating that the oscilloscope is set
to wait 5 video fields before rearming the trigger.
TRIGGER:A:VIDEO:HOLDOFF:FIELD 4.5 sets the oscilloscope to wait 4.5 video
fields before rearming the trigger.
TRIGger:A:VIDeo:LINE
This command lets you set the specific video line number to be used for triggering
on a video signal. You must also use the TRIGger:A:VIDeo{:SYNC|:FIELD}
command to specify
NUMERic as the video field to use.
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:LINE <NR1>
TRIGger:A:VIDeo:LINE?
Related Commands
TRIGger:A:VIDeo{:SYNC|:FIELD}
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-915