I am beginning with Power Meter, I used ADE7953 and MSP430F5510IPT.
On the project, I am working with:
+ use with Rogowski coil sensors (PA3208NL, 100A) for Current Channel A & Voltage Channel (220VAC).
+ load is a hair drier: 230VAC, 2.45A, Pmax as 1200W (with 4.9A), PF as 0.9999.
+ System: 50Hz, 220VAC
+ use line cycle accumulation mode to measure the active energy
+ config register:
CONFIG = 0x8005: set to COMM_LOCK, HPFEN, INTENA
LCYCMODE = 0x01: set to ALWATT (RSTREAD = 0)
LINECYC = 0x64: 100 cycles with system 50Hz => accumulated 1s
ACCMODE = 0x3F0000: AWATTACC = 0 (Current Channel A active energy accumulation mode : normal mode)
Everything seems working well with voltage, current, PF, Power. I see result for these resister (decimal):
+ VRMS: 6185124
+ IRMSA: 214370
+ PFA: -32768
+ AWATT: 76932
+ AENERGYA: 3265
But I can’t measure energy:
By reading "AENERGYA register, i expected to read an increasing value but i read only a value that move up and down: from 3240 to 3270.
I can't see any "accumulation".
I hope you give me advice.
Thanks you so much