PM9603APE datasheet(16/18 Pages) SAMES

Part #	PM9603APE

Description	SINGLE PHASE POWER/ENERGY METERING MODULE SPI INTERFACE

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	SAMES [Sames]

Direct Link	http://www.sames.co.za

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16 / 18 page

PM9603AP

sames

16/18

spi_reset();

spi_cs();

spi_start_read(0);

act

= spi_read_register();

react = spi_read_register();

volt

= spi_read_register();

// Now calculate the incremental difference

and take care of

// overflow as well as the sign of register values

active = convert_24bits(act - act1);

reactive = convert_24bits(react - react1);

voltage = convert_24bits(volt1 - volt);

k = (1/((double)(freq&freq_bits)*del_time)) * 80

* 230/(1.44*2);

fm = (double)((CLOCKFREQ/2)/((double)(freq &

freq_bits)));

vm = (double)voltage * ((14/17.5)*0.63)/

((double)(freq&freq_bits)*del_time) *230;

if (first == 0){

printf(“%08.2f \t”,active*k);

printf(“%08.2f \t”,(reactive*k*PI/2));

printf(“%08.2f \t”,vm);

printf(“%08.4f \t”,fm);

printf(“%5.2f

\n”,(del_time*(8/fm)));

}

first = 0;

act1

= act;

react1= react;

volt1 = volt;

del_time = 0;

}

}//while

}

PM9603APE Datasheet(PDF) 16 Page - Sames