Reading LAENERGY register from ADE7754

[houssem_daff]

reading data from ade7754

hello
i'm using an ADE7754 to read the active energy from a triphase network with a PIC16F877.

I could acquire VRMS, IRMS and the active power from each phase separately, but I couldn’t read the total active energy because I don’t have any idea how to manage the ADE7754.

thanks

 

[Prabakaran]

HI Houssem

I used the ADE7758 Same tripahse power . In that LAENERGY u should take care of LINE CYC u should give how many zero crossings u need for line cycle accumulation . This give information of Lenergy. Reding VRMS and IRMS is differnt from LAENERGY. u should set the Bit LWATT for Aphase and u should set the ZXSEL in the same Line cycle accumulation Register (0x17 ) for ADE7758. and u Should check the the LENERGY bit in the Interrupt status register after that register u should the clear the same.
u write the Program that ur code shpuld wait there still the bit sets.



Means : while( read_register(0x18) == 0x1000);

check this . U will get the LAENEGY for each phase