Command Groups
Table 2-36: Power Commands (cont.)
Command Description
POWer:HARMonics:FREQRef:
FIXEDFREQValue
This command specifies the fixed reference frequency value for harmonics measurements
POWer:HARMonics:IEC:CLAss This command specifies the filtering class for IEC harmonics
POWer:HARMonics:IEC:FILter This command specifies the enabled state for fi ltering of IEC harmonics
POWer:HARMonics:IEC:
FUNDamental
This command specifies the fundamental current for IEC harmonics
POWer:HARMonics:IEC:GROUPing This command specifies the enabled state for grouping of IEC harmonics
POWer:HARMonics:IEC:
INPUTPOWer
Sets of returns the class D input power for IEC harmonics
POWer:HARMonics:IEC:
LINEFREQuency
This command specifies the line frequency for the IEC standard
POWer:HARMonics:IEC:
OBSPERiod
This command specifies the IEC observation period
POWer:HARMonics:IEC:
POWERFACtor
This command specifies the power factor for IEC harmonics
POWer:HARMonics:MIL:
FUNDamental:CALCmethod
This command specifies the m easurement method for the MIL harmonics fundamental
frequency
POWer:HARMonics:MIL:
FUNDamental:USER:CURrent
This command specifies RMS amperes for User calculation method
POWer:HARMonics:MIL:
LINEFREQuency
This command specifies the line frequency for MIL-STD-1399 Section 300A harmonics tests
POWer:HARMonics:MIL:
POWERLEVel
This command specifies the power level for MIL-STD-1399 Section 300A harmonics tests
POWer:HARMonics:NR_HARMonics Sets of returns the number of harmonics (a value i n the range of 20 to 400) when the
harmonics standard is NONe
POWer:HARMonics:RESults:
HAR<1-400>:FREQuency?
Returns the frequency of the harmonic
POWer:HARMonics:RESults:
HAR<1-400>:IECMAX?
The IEC standard specifies harmonics measurements to be computed in windows of time,
with each time window being nominally 200 ms. This returns the maximum of the RMS
magnitude of the harmonic, computed across successive 200 ms time windows within an
observation period entered by the user
POWer:HARMonics:RESults:
HAR<1-400>:LIMit?
The IEC and MIL standards specify a limit for each harmonic magnitude. Returns the limit
in absolute units, or a s a percentage of the fundamental as specified by the standard. IEC
Class C (Table 2) and MIL standards specify the limit as a percentage of the fundamental
POWer:HARMonics:RESults:
HAR<1-400>:PHASe?
Returns the phase of the harmonic in degrees. The phase is measured relative to the
zero-crossing of the reference waveform. When there is no reference waveform, the phase
is relative to the fundamental component
POWer:HARMonics:RESults:
HAR<1-400>:RMS:ABSolute?
Returns the RMS magnitude of the harmonic expressed in absolute units
POWer:HARMonics:RESults:
HAR<1-400>:RMS:PERCent?
Returns the RMS magnitude of the harmonic expressed as a percentage of the fundamental
2-42 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
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