MDO3000 Programmer Manual.pdf - 第331页

Commands Listed in Alphabetical Order ACDCRMS –d i s p l ays the RMS value of the acquired data. DC – displays the DC value of the acquired data. FREQuency – displays the frequency counter measurement. OFF Examples DVM:M…

100%1 / 1158
Commands Listed in Alphabetical Order
Group
DVM
Syntax
DVM:MEASUrement:INFMINimum?
Examples
DVM:MEASU:INMIN? might return 100.0000E+3, which represents the
minimum readout value of the DVM function over the entire time that the DVM
has been on since the last change using the DVM:MODe or DVM:SOUrce
commands or
DVM RESE T.
DVM:MEASUrement:VALue? (Query Only)
Returns the Digital Voltmeter value.
Any qualifier, such as "Measurement warning, Clip
ping positive", is automatically
set as an error event.
Conditions
MDO3000 and MDO4000C only; requires DVM option key to be installed.
Group
DVM
Syntax
DVM:MEASUrement:VALue?
Examples
DVM:MEASU:VAL? might return 100.0000E+3, which represents the DVM value.
DVM:MODe
Specifies (or queries) the mode to use for the Digital Voltmeter (ACRMS,
ACDCRMS, DC, Frequency, or OFF).
Conditions
MDO3000 and MDO4000C only; requires DVM option key to be installed.
Group
DVM
Syntax
DVM:MODe {ACRMS|ACDCRM S|DC|FREQuency|OFF}
DVM:MODe?
Arguments
ACRMS – displays the root-mean-square value of the acquired data, with the DC
component removed.
2-300 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
ACDCRMS –displ
ays the RMS value of the acquired data.
DC – displays the DC value of the acquired data.
FREQuency – displays the frequency counter measurement.
OFF
Examples
DVM:MODE DC sets the mode for the DVM to DC, which displays the DC value of
the acquired data.
DVM:MOD? might return ACRMS, which indicates the mode is currently set
to ACRMS.
DVM:SOUrce
Sets (or queries) the source for the Digital Voltmeter: Channel 1 - 4.
Conditions
MDO3000 and MDO4000C only; requires DVM option key to be installed.
Group
DVM
Syntax
DVM:SOUrce {CH1|CH2|CH3 |CH4}
DVM:SOUrce?
Arguments
CH1|CH2|CH3|CH4 specify which channel to use as the source for the DVM.
Examples
DVM:SOURCE CH4 sets the DVM source to Channel 4.
D<x>
This command specifies parameters for digital channel <x>, where x is the
channel number.
Conditions
Requires an MSO or MDO4000/B/C model, or MDO3000 with option
MDO3MSO installed.
Group
Vertical
Syntax
D<x>
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-301
Commands Listed in Alphabetical Order
D<x>:LABel
This command specifies the waveform label for digital channel <x>, where x
is the channel number.
Conditions
Requires an MSO or MDO4000/B/C model, or MDO3000 with option
MDO3MSO installed.
Group
Vertical
Syntax
D<x>:LABel <Qstring>
D<x>:LABel?
Arguments
<Qstring> is an alphanumeric string of text, enclosed in quotes, that contains the
text label information for the digital channel <x> waveform. The text string is
limited to 30 characters.
Examples
D4:LABEL? might return :D4:LABEL “Clk Wfm 4”.
D<x>:POSition
This command specifies the vertical position for digital channel <x>, wherex
is the channel number.
NOTE. Unlike analog channels, which use the center baseline as the zero point,
digital channels use the bottom logic level as the zero point. Because of the slot
model used to describe digital channel position, the oscilloscope rounds off
divisions to the nearest slot.
Conditions
Requires an MSO or MDO4000/B/C model, or MDO3000 with option
MDO3MSO installed.
Group
Vertical
Syntax
D<x>:POSition <NR3>
D<x>:POSition?
2-302 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual