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Command Groups
Table 2-28: Power Commands (cont.)
Command Description
POWer:HARMonics:RESults:HAR<1-400>:
IECMAX?
The IE C standard specifies harmonics
measurements to be computed inwindows 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 as 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 z ero-crossing of the reference waveform.
When there is no reference waveform,
the phase is r elative 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 m agnitude of the
harmonic expressed as a percentage of the
fundamental
POWer:HARMonics:RESults:HAR<1-400>:
TEST:IEC:CLASSALIMit?
Returns PASS, FAIL or NA. Specifies if
the IEC Class A higher harmonic limit (and
conditions) are met
POWer:HARMonics:RESults:HAR<1-400>:
TEST:IEC:NORMAL?
Returns PASS, FAIL or NA. Specifies if the
Normal IEC harmonic limits are met
POWer:HARMonics:RESults:HAR<1-400>:
TEST:IEC:POHCLIMit?
Returns PASS, FAIL or NA. Specifies if the
higher harmonic limit (and conditions) for the
21st and higher order odd harmonics are met
POWer:HARMonics:RESults:HAR<1-400>:
TEST:MIL:NORMAL?
Returns the test result for the specified
harmonic for the MIL-STD-1399 testing
standard
POWer:HARMonics:RESults:IEC:
FUNDamental?
Returns the IEC fundamental frequency
POWer:HARMonics:RESults:IEC:
HARM3ALTernate?
Returns the IEC harmonics test result for the
3rd harmonic: PASS, FAIL or NA
POWer:HARMonics:RESults:IEC:
HARM5ALTernate?
Returns the IEC harmonics test result for the
5th harmonic: PASS, FAIL or NA
POWer:HARMonics:RESults:IEC:POHC? Returns the IEC POHC measurement
2-34 MSO4000 and DPO4000 Series Programmer Manual