UG-194 datasheet(10/20 Pages) AD

10 / 20 page

UG-194

Evaluation Board User Guide

Rev. A | Page 10 of 20

The Line Cycle Accumulation window is also accessible from

the Active Energy window (see Figure 11).

Figure 11. Line Cycle Accumulation Window

The line cycle mode allows energy to be accumulated over an

integral number of half line cycles. To activate line cycle accu-

mulation, an ac signal must be present on the voltage channel.

Click EXIT in the CF Outputs or Line Cycle Accumulation

window to return to the Active Energy window.

REACTIVE ENERGY

The Reactive Energy window is available from the MENU box.

This window is similar to the Active Energy window shown in

Figure 10, but it allows access to registers that are associated

with the reactive energy measurements. Tabs are available to

select Current Channel A or Current Channel B registers. The

CF Outputs and Line Cycle Accumulation windows are also

accessible from the Reactive Energy window (see Figure 9 and

Figure 11, respectively).

APPARENT ENERGY

The Apparent Energy window is available from the MENU

box. The Apparent Energy window allows access to the regis-

ters associated with the apparent energy measurement (see

Figure 13). Tabs are available to select Current Channel A or

Current Channel B registers.

The CF Outputs and Line Cycle Accumulation windows

shown in Figure 9 and Figure 11 are also accessible from

the Apparent Energy window.

Apparent energy measurement is derived from the product

of the current rms and voltage rms measurements. The RMS

window can be accessed from the Apparent Energy window

by clicking Voltage RMS or Current RMS (see Figure 12).

Figure 12. RMS Window

From the RMS window, the calibration and configuration regis-

ters associated with the VRMS and IRMS measurements can be

accessed. In addition, the rms readings can be obtained. Click

EXIT in this window to return to the Apparent Energy window.

Figure 13. Apparent Energy Window

UG-194 Datasheet(PDF) 10 Page - Analog Devices