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$Rn8209x (C \ D \ g) rn8208g rn8207c read operation, since there is no check byte in the frame format, how to ensure that the read data is the correct$

Rn8209x (C \ D \ g) rn8208g rn8207c read operation, since there is no check byte in the frame format, how to ensure that the read data is the correct

Answer: the data read back from the SPI / UART port of the register address 44h rdata last time is used. After reading back a register data...
2022-11-24
$What is the correspondence between rn8209x (C \ D \ g) rn8208g rn8207c power register and voltage and current effective value register?$

What is the correspondence between rn8209x (C \ D \ g) rn8208g rn8207c power register and voltage and current effective value register?

Answer: when power gain is 0 and power factor is 1, power register, voltage effective value register and current effective value register m...
2022-11-24
In the calibration applications such as rn8209x / rn8208g / rn8207c / rn8302b / rn821x / rn202x / rn7326, the normalized value is often mentioned. How

Answer: normalized value: the maximum value of the register is 1. The ratio between the actual register value and the maximum value of the ...
2022-11-24
What is the significance of calculating the parameters in hfconst formula in the first step of the meter calibration method in the application note of

EC takes the empirical value of 3200. Finally, the hfconst is calculated to be 9957, converted into hexadecimal number 0x26e5 and written i...
2022-11-24
Can im1281b single-phase electric energy metering module be used to measure three-phase electric energy?

Yes, please refer to the following application wiring diagram: precautions:There are 3 design methods of communication port with MCU:Three...
2022-11-24
Working principle of intelligent meter and automatic locking screw machine of intelligent meter

Now smart meters are not only simple metering, but also transmit multiple data, as well as the function of electricity theft prevention. Sm...
2022-11-24
Why should the smart meter be replaced?

Answer: At present, most of the electric energy meters used by customers are mechanical meters or electronic meters with single function. I...
2022-11-24
Description of dynamic range of Ruineng micro electric energy metering chip

Dynamic range: refers to the ratio of the minimum value of ADC input signal to the maximum value of ADC input signal (i.e. full-scale value...
2022-11-24
Selection method of sampling resistance of current loop of Ruineng micro metering IC (CT)

When designing metering products with Ruineng micro metering chips, the majority of electronic hardware engineers often encounter the situa...
2022-11-24

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