MDO3000 Programmer Manual.pdf - 第124页
Command Groups T able 2-42: V ertical Commands (cont.) Command Description REF<x>:HORizontal:SCAle This command speci fi es the horizontal scale for a reference w aveform REF<x>:LABel This command speci fi es t…

Command Groups
Table 2-42: Vertical Commands (cont.)
Command Description
CH<x>:PRObe:CALibrate:STATE? This query returns the calibration state of the probe connected to the specified
channel.
CH<x>:PRObe:COMMAND Sets the state of the specifi ed probe control
CH<x>:PRObe:DEGAUss Starts a degauss/autozero cycle on a TekVPI current probe attached to the
specified channel input
CH<x>:PRObe:DEGAUss:STATE? Returns the state of the probe degauss
CH<x>:PRObe:FORCEDRange This command specifies the range on a TekVPI probe attached to the specified
channel
CH<x>:PRObe:GAIN This command specifies the gain factor of the probe that is attached to the
specified channel
CH<x>:PRObe:ID? Returns the type and serial number of the probe that is attached to the
specified channel
CH<x>:PRObe:ID:SERnumber? Returns the serial number of the probe that is attached to the specified channel
CH<x>:PRObe:ID:TYPe? Returns the type of probe that is attached to the specified channel
CH<x>:PRObe:MODel This command specifies the probe model for the specified channel
CH<x>:PRObe:PROPDELay This command specifies the propagation delay for the probe connected to
the specified channel
CH<x>:PRObe:RECDESkew? Returns the recommended deskew for the probe connected to the specified
channel
CH<x>:PRObe:RESistance? Returns the resistance of the probe that is attached to the specified channel
CH<x>:PRObe:SIGnal This command specifies the input bypass setting of channel <x>TekVPI probe
CH<x>:PRObe:UN Its? Returns the units of measure of the probe that is attached to the specified
channel
CH<x>:SCAle This command specifies the vertical scale of the specified channel
CH<x>:TERmination This command specifies channel input termination
CH<x>:YUNits This command specifies the units for the specified channel
D<x>
Returns parameters for digital channel <x>
D<x>:LABel
This command specifies the waveform label for digital channel<x>
D<x>:THReshold
This command specifies the logical threshold for the digital channel <x>, where
x is the digital channel number D0 – D15.
D<x>:POSition This command specifies the vertical position for digital channel <x>
DESkew Causes the deskew values for all channels to be set to the recommended
values
DESkew:DISPlay Specifies the state of the deskew table display.
DISplay:INTENSITy:BACKLight:AUTODim:TIMe This command specifies the state of the deskew table display
REF<x>? Returns reference waveform data for channel <x>
REF<x>:DATE? Returns the date that a reference waveform was stored
REF<x>:HORizontal:DELay:TIMe This command specifies the horizontal position of the specified reference
waveform in percent of the waveform that is displayed to the right of the center
vertical graticule
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-93

Command Groups
Table 2-42: Vertical Commands (cont.)
Command Description
REF<x>:HORizontal:SCAle This command specifies the horizontal scale for a reference w aveform
REF<x>:LABel
This command specifies the specified reference waveform label
REF<x>:TIMe? Returns the time that a reference waveform was stored
REF<x>:VERTical:POSition This command specifies the vertical position of the specified reference
waveform
REF<x>:VERTical:SCAle This command specifies the reference waveform vertical scale in vertical
units/div
SELect? Returns information on which waveforms are on or off and which waveform
is selected.
SELect:{BUS<x>|B<x>} Turnsonoroffthespecified bus waveform or returns whether the specified
bus channel is on or off
SELect:CH<x> Turnsonoroffthespecified waveform or returns whether the specified
channel is on or off
SELect:CONTROl This command specifies the waveform that is selected as the implied recipient
of channel-related commands
SELect:DAll This command turns on or off all digital channels (D0 — D15).
SELect:D<x> Turns on the display of digital channel <x> and resets the acquisition
SELect{:MATH|:MATH1} Turns on or off the math waveform or returns whether the math waveform is
on or off
SELect:REF<x> Turnsonoroffthespecified reference waveform or returns whether the
specified reference waveform is on or off
VideoPictureCommandGroup
The video picture features as well as triggering on a video signal are included
standard with the MDO3000 series models. These features require the DPO4VID
application module for use with MSO/DPO4000B and the MDO4000/B/C models.
Use the video picture commands for video picture functionality.
Table 2-43: Video Picture Commands
Command Description
VIDPic:AUTOContrast Sets (or queries) the video picture automatic contrast state.
VIDPic:AUTOContrast:UPDATERate Sets (or queries) the number of frames between automatic contrast updates
VIDPic:BRIGHTNess Sets (or queries) the video picture brightness level as an integer percentage.
VIDPic:CONTRast Sets (or queries) the video picture contrast level as an integer percentage.
VIDPic:DISplay Sets (or queries) the video picture display state.
VIDPic:FRAMETYPe
Sets (or queries) the video picture frame type (O DD, EVEN or INTERLAced).
VIDPic:LOCation:HEIght Sets (or queries) the video picture height, in rows.
2-94 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual

Command Groups
Table 2-43: Video Picture Commands (cont.)
Command Description
VIDPic:LOCation:OFFSet Sets (or queries) the video picture line-to-line offset. This is the amount of
additional delay time to add between lines of the video picture.
VIDPic:LOCation:STARt:LINE Sets (or queries) the video picture starting l ine number.
VIDPic:LOCation:STARt:PIXel Sets (or queries) the video picture starting pixel in each line
VIDPic:LOCation:WIDth Sets (or queries) the video picture width, in columns.
VIDPic:LOCation:X Sets (or queries) the video picture X origin location, in columns.
VIDPic:LOCation:Y Sets (or queries) the video picture Y origin location, in rows.
VIDPic:SOUrce Sets (or queries) the channel to use for the video picture source waveform.
VIDPic:STANdard Sets (or queries) which video picture standard to use (either NTSC or PAL).
Wa veform Transfer Command Group
(See Table 2-48.)
The
CURVe and other commands and queries in the Waveform Transfer Command
Group are used to transfer waveform data points to and from the oscilloscope.
Thewaveformdatapointsareacollectionofvaluesthatrepresenttheamplitude
of the waveform samples. One data value usually represents one data point inthe
wa
veform record. Only one waveform can be transferred at a time.
Each waveform you transfer has an associated waveform preamble, which
c
ontains information such as data format, horizontal scale, vertical scale, and the
other settings in effect when the waveform was created. When you transfer a
waveform, you need to specify at least some of the general and preamble settings
(using the
DATa, WF MInpre or WFMOutpre commands) before you specify the
raw data point information (using the
CURVe command or query.)
Waveform data can be transferred to or from the oscilloscope using the Ethernet
or USBTMC interfaces in binary or ASCII format. Binary data transfer is
considerably more efficient than ASCII data transfer. Binary data is transferred to
and from the oscilloscope using the IEEE488.2 arbitrary block format (7.7.6 of
the IEEE488.2 spec) which we refer to in this document as “binary block format”.
A binary block is represented as:
#N<N-Digits><binary data>
Where:
The “#” is the arbitrary block token.
N is a single hexadecimal digit specifying how many decimal digits
immediately follow.
<N-Digits> is a decimal number N digits long, that specifies the number of
binary data bytes to follow.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-95