MDO3000 Programmer Manual.pdf - 第532页

Commands Listed in A lphabetical Order Group Power Syntax POWer:REFLeve l:METHod {AB S olute|PERCent} POWer:REFLeve l:METHod? Arguments ABSolute specifies that the reference levels are set explicitly using the MEASUrement…

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Commands Listed in Alphabetical Order
Syntax
POWer:REFLeve
l:ABSolute:MID<x> <NR3>; Ranges={D,-1 e6,+1E6}
POWer:REFLevel:ABSolute:MID<x>?
Arguments
<NR3> is a floating point number that specifies the absolute mid reference value.
Examples
POWER:REFLEVEL:ABSOLUTE:MID1 1 sets the mid reference voltage to 1V.
POWER:REFLEVEL:ABSOLUTE:MID1? might return
POWER:REFLEVEL:ABSOLUTE:MID1 0.0E+0 indicating that the absolute
reference voltage level is set to 0.0E+0 V.
POWer:REFLevel:HYSTeresis
This command specifies the reference level hysteresis value to be used for power
measurements.
Conditions
This command requires a DPO4PWR application module for 4000 series models,
or an MDO3PWR application module for MDO3000 series models.
Group
Power
Syntax
POWer:REFLevel:HYSTeresis <NR3>
POWer:REFLevel:HYSTeresis?
Arguments
<NR3> is a floating point number that specifies the hysteresis value.
Examples
POWER:REFLEVEL:HYSTERESIS 30 sets the hysteresis value to 30.
POWER:REFLEVEL:HYSTERESIS? might return
POWER:REFLEVEL:HYSTERESIS 10 indicating that the hysteresis value is
set to 10.
POWer:REFLevel:METHod
This command specifies the method used to calculate the 0% and 100% reference
level to be use
d for power measurements.
Conditions
This command requires a DPO4PWR application module for 4000 series model
s,
or an MDO3PWR application module for MDO3000 series models.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-501
Commands Listed in Alphabetical Order
Group
Power
Syntax
POWer:REFLevel:METHod {ABS
olute|PERCent}
POWer:REFLevel:METHod?
Arguments
ABSolute specifies that the reference levels are set explicitly using the
MEASUrement:REFLevel:ABSolute commands. This method is useful when
precise values are required.
PERCent specifies that the reference levels are calculated as a percent
of the signal amplitude. The percentages are defined using the
MEASUrement:REFLevel:PERCent commands.
Examples
POWER:REFLEVEL:METHOD ABSOLUTE specifies that explicit user-defined values
are used for the reference levels.
POWER:REFLEVEL:METHOD? might return P OWER:REFLEVEL:METHOD
PERCENT
indicating that the reference level units used are calculated as a percent
relative to HIGH and LOW.
POWer:REFLevel:PERCent (No Query Form)
This command sets the reference levels to be used for power measurements to
the default percentage values.
Conditions
This command requires a DPO4PWR application module for 4000 series models,
or an MDO3PWR application module for MDO3000 series models.
Group
Power
Syntax
POWer:REFLevel:PERCent <SETTODEFaults>
Arguments
SETTODEFaults sets the reference levels to their default perce
ntage values.
POWer:REFLevel:PERCent:HIGH
This command specifies the top reference percent level to be used for power
measurements.
2-502 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Conditions
This command re
quires a DPO4PWR application module for 4000 series models,
or an MDO3PWR application module for MDO3000 series models.
Group
Power
Syntax
POWer:REFLevel:PERCent:HIGH <NR3>; Ranges={D,0.0,1 00.0}
POWer:REFLevel:PERCent:HIGH?
Arguments
<NR3> is a floating point number that specifies the high value in percent.
Examples
POWER:REFLEVEL:PERCENT:HIGH 95 sets the high reference level to 95% of
the signal amplitude.
POWER:REFLEVEL:PERCENT:HIGH? might return
:POWER:REFLEVEL:PERCENT:HIGH 90 indicating that the percentage high
reference level is set to 90% of the signal amplitude.
POWer:REFLevel:PERCent:LOW
This command specifies the low reference percent level to be used for power
measurements.
Conditions
This command requires a DPO4PWR application module for 4000 series models,
or an MDO3PWR application module for MDO3000 series models.
Group
Power
Syntax
POWer:REFLevel:PERCent:LOW <NR3>; R anges={D,0.0,100.0}
POWer:REFLevel:PERCent:LOW?
Arguments
<NR3> is a floating point number that specifies the low value in percentage.
Examples
POWER:REFLEVEL:PERCENT:LOW 15 sets the low reference level to 15% of the
signal amplitude.
POWER:REFLEVEL:PERCENT:LOW? might return
:POWER:REFLEVEL:PERCENT:LOW 10 indicating that the percentage low
reference level is set to 90% of the signal amplitude.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-503