DKM-411 Modbus Application Manual V3.0 (15.01.2017)
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Phase L1 voltage, harmonics and waveform buffer
Phase L2 voltage, harmonics and waveform buffer
Phase L3 voltage, harmonics and waveform buffer
Phase L1-2 voltage, harmonics and waveform buffer
Phase L2-3 voltage, harmonics and waveform buffer
Phase L3-1 voltage, harmonics and waveform buffer
Phase L1 current, harmonics and waveform buffer
Phase L2 current, harmonics and waveform buffer
Phase L3 current, harmonics and waveform buffer
BUFFER STRUCTURE
The buffer consists of 289 x 16 bit registers. The structure is below.
This string of 32 registers carry individual harmonics of the
selected channel, staring from H#01 until H#63. The first
register represents the fundamental and is always set to
100.0%.
Scopemeter dataof the channel. Each register represents one
point in the X axis of the scopemeter. The complete waveform
is represented with 256 horizontal points. The register value is
a signed integer.
The sampling rate is 122us. Thus the buffer length is
256x122us, namely 31ms, presenting more than 1 cycle of the
waveform.
By representing these values in graphical form, a software
oscilloscope can be made.
HARMONICS AND WAVEFORM INFORMATION
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