MDO3000 Programmer Manual.pdf - 第965页

Commands Listed in Alphabetical Order VERBose This command spe cifies the V erbose sta te that controls the length of keywor ds on query responses. Keywords can be both headers and arguments. NOTE. This command does not a…

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Commands Listed in Alphabetical Order
USBTMC:VENDO
RID:DECimal? (Query Only)
This query returns the vendor ID number as a decimal. The decimal vendor ID for
Tektronix instruments is 1689. USBTMC stands for USB Test & Measurement
Class, a prot
ocol that allows GPIB-like communication with USB devices.
Group
Miscellaneous
Syntax
USBTMC:VENDORID:DECimal?
Related Commands
USBTMC:VENDORID:HEXadecimal?
USBTMC:PRODUCTID:HEXadecimal?
USBTMC:PRODUCTID:DECimal?
USBTMC:SERIALnumber?
Examples
USBTMC:VENDORID:DECimal? might return a vendor ID value of 1689.
USBTMC:VENDORID:HEXadecimal? (Query Only)
This query returns the vendor ID number as a hexadecimal value. The
hexadecimal vendor ID for Tektronix instruments is 0x699. USBTMC stands for
USB Test & Measurement Class, a protocol that allows GPIB-like communication
with USB devices.
Group
Miscellaneous
Syntax
USBTMC:VENDORID:HEXadecimal?
Related Commands
USBTMC:PRODUCTID:HEXadecimal?
USBTMC:VENDORID:DECimal?
USBTMC:PRODUCTID:DECimal?
USBTMC:SERIALnumber?
Examples
USBTMC:VENDORID:HEXadecimal? might return a vendor ID value of 0x0699.
2-934 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
VERBose
This command specifies the Verbose state that controls the length of keywords on
query responses. Keywords can be both headers and arguments.
NOTE. This command does not affect IEEE Std 488.2-1987 Common Commands
(those starting with an asterisk). This command does affect the verbose state
of both the U
SBTMC and VXI-11 interfaces. Refer to the Introduction for
information.
Group
Miscella
neous
Syntax
VERBose {OFF|ON|<NR1>}
Related Commands
HEADer|:HDR,
*LRN?,
SET?
Arguments
OFF sets the Verbose state to false, which returns minimum-length keywords
for applicable setting queries.
ON sets the Verbose state to true, which returns full-length keywords for applicable
setting queries.
<NR1> a 0 returns minimum-length keywords for applicable setting queries; any
other value returns full-length keywords.
Examples
VERBOSE ON enables the Verbose state.
VERBOSE ? might return :VERB 0 indicating that the Verbose state is disabled.
VIDPic:AUTOContrast
Sets (or queries) the video picture automatic contrast state.
Automatic contrast uses histogram equalization to optimize the use of brightness
levels; each brightness level occupies approximately the same area in the image.
Conditions
MDO3000 series. Requires option SA3 or SA6 for the MDO4000C series.
Requires the DPO4VID application module for use with MSO/DPO4000B,
MDO4000 and MDO4000B mod
els.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-935
Commands Listed in Alphabetical Order
Group
Video Picture
Syntax
VIDPic:AUTOContrast {0|1|OFF|ON}
VIDPic:AUTOContrast?
Arguments
1 or ON turns on the auto contrast state for the video picture feature.
0 or OFF turns it off.
Examples
VIDP:AUTOC ON turns on the auto contrast state for the video picture feature.
VIDPic:AUTOContrast:UPDATERate
Sets (or queries) the number of frames between automatic contrast updates.
Conditions
MDO3000 series. Requires option SA3 or SA6 for the MDO4000C series.
Requires the DPO4VID application module for use with MSO/DPO4000B,
MDO4000 and MDO4000B models.
Group
Video Picture
Syntax
VIDPic:AUTOContrast:UPDATERate <NR1>
VIDPic:AUTOContrast:UPDATERate?
Arguments
Integer that represents the number of frames between automatic contrast updates,
in the range of 0 to 100. The default is 20. A value of 0 results in no automatic
contrast updates.
Examples
VIDP:AUTOC 25 sets the number of frames between automatic contrast updates
to 25.
VIDPic:BRIGHTNess
Sets (or queries) the video picture brightness le
vel as an integer percentage.
Conditions
MDO3000 series. Requires
option SA3 or SA6 for the MDO4000C series.
Requires the DPO4VID application module for use with MSO/DPO4000B,
MDO4000 and MDO4000B models.
2-936 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual