MDO3000 Programmer Manual.pdf - 第481页

Commands Listed in Alphabetical Order The query form r eturns statistic settings. Group Measurement Syntax MEASUrement:S TATIstics RES ET MEASUrement:S TATIstics? Arguments RESET clears the measurements. MEASUrement:ST A…

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Commands Listed in Alphabetical Order
Examples
MEASUREMENT:R
EFLEVEL:PERCENT:LOW 15
sets the high reference level to
15% of HIGH.
MEASUREMENT:
REFLEVEL:PERCENT:LOW?
might return
:MEASUREMENT:REFLEVEL:PERCENT:LOW 10 indicating that the
percentage high reference level is set to 10% of HIGH.
MEASUremen
t:REFLevel:PERCent:MID<x>
This command specifies the percent (where 100% is equal to HIGH) that is
used to calculate a mid reference level. There are two mid reference levels;
thus, MID
<x> can be either MID1 or MID2. This command applies when the
command MEASUrement:REFLevel:METHod has been set to Percent. This
command is equivalent to setting the Reference Levels in the MEASURE menu
on the oscilloscope front panel.
NOTE. This command affects the re sults of period, frequency, delay, a nd all cyclic
measurements. This command affects the associated reference level parameter for
all MEA
Surements:IMMed and the four periodic measurements.
Group
Measurement
Syntax
MEASUrement:REFLevel:PER
Cent:MID<x> <NR3>
MEASUrement:REFLevel:PERCent:MID<x>?
Related Commands
MEASUrement:REFLevel:METHod
Arguments
<NR3> is a floating point number that specifies the mid ref
erence level, ranging
from 0 to 100%. The default mid reference level is 50%.
Examples
MEASUrement:REFLevel:PERCent:MID 60 sets the MID1 reference level
to 60% of HIGH.
MEASUrement:REFLevel:PERCent:MID? might return
:MEASUREMENT:REFLEVEL:PERCENT:MID2 65 indicating that the
MID2 reference level has been set to 65% of HIGH.
MEASUrement:STATIstics (No Query Form)
Clears all of the statistics accumulated for all periodic measurement
s(MEAS1
through MEAS4).
2-450 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
The query form r
eturns statistic settings.
Group
Measurement
Syntax
MEASUrement:STATIstics RESET
MEASUrement:STATIstics?
Arguments
RESET clears the measurements.
MEASUrement:STATIstics:MODe
Controls the operation and display of management statistics.
Group
Measurement
Syntax
MEASUrement:STATIstics:MODe {OFF|ALL}
MEASUrement:STATIstics:MODe?
Related Commands
MEASUrement:STATIstics
Arguments
OFF turns all measurements off. This is the default value.
AL turns on statistics and displays all statistics for each measurement.
Examples
MEASUREMENT:STATISTICS:MODE OFF turns statistic measurements off.
MEASUREMENT:STATISTICS:MODE? might return
:MEASUREMENT:STATISTICS:MODE ON indicating that measurement statistics
are turned on and all statistics are being displayed for each measurement.
MEASUrement:STATIstics:WEIghting
This command specifies the time constant for mean and standard deviation
statistical accumulations.
Group
Measurement
Syntax
MEASUrement:STATIstics:WEIghting <NR1>
MEASUrement:STATIstics:WEIghting?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-451
Commands Listed in Alphabetical Order
Related Commands
MEASUrement:S
TATIstics:MODe
Arguments
<NR1> is the number of samples used for the mean and standard deviation
statistical accumulations.
Examples
MEASUREMENT:STATISTICS:WEIGHTING 4 sets statistical weighting to four
samples.
MEASUREMENT:STATISTICS:WEIGHTING? might return
:MEASUREMENT:STATISTICS:WEIGHTING 4 indicating that
measurement statistics weightingiscurrentlysetto4samples.
MESSage
This command sets or queries message box (screen annotation) parameters.
Group
Display
Syntax
MESSage
MESSage?
Examples
MESSAGE? might return MESSAGE:SHOW "TP401";BOX
271,82,292,114;STATE 0
indicating the message parameters.
MESSage:BOX
This command specifies the co-ordinates of the message box. This command doe
s
not display the message unless MESSage:STATE is on.
X1 and Y1 are the screen coordinates of the top left corner of the message bo
x.
X2 and Y2 are the screen coordinates of the bottom right corner of the message
box. All four coordinates are returned by the query.
Changing the text in the message box, using the MESSAGE:SHOW command,
automatically resizes the message box. If you want a custom message box
size, send the MESSAGE:BOX command after changing the text using the
MESSAGE:SHOW command.
Message box settings and data are saved and restored in saved setups.
Group
Display
2-452 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual