The LSB for Idat is 1μA, the formula is as below:
For example, if byte1 = 8C, byte2 = D5 and byte3 = 00, then the current value is:
Idat = -Idat_reg[22:0] = -0x0CD500 uA = -840960uA≈-841mA
(2) There are six different voltages, each voltage register has 2 bytes to be
Vdat_reg[15:0]. Vdat_reg[15:12] is invalid, while Vdat[11:0] represent the
voltage value. The six different voltage formula is as below:
The unit above is volt (V).
B.11 Fault Diagnosis
Fault Diagnosis (40bytes in total)
Register description:
(1) chksum_st represents the temperature compensation status. If chksum_st = 0x00, the
temperature compensation is working. If chksum_st = 0x01, the temperature
compensation is, the temperature compensation is abnormal.
(2) manc_err1 and manc_err2 are used to calculate the bit error rate of the data
communication. manc_err1 represents 1bit error, while manc_err2 represents 2bit error.
The error rate formula is as below:
When the manc_err1_per and manc_err1_per are both zero, the system data
communication is normal.
(3) Temperature1 and temperature2 represent the bottom board temperature, while
temperature3 and temperature4 represent the top board temperature. Each temperature
register contains 2 bytes to be temperature_reg[15:0]. temperature_reg[2:0] is invalid.
temperature_reg[15:3] is temperature value, while temperature_reg[15] is symbol flag.
The temperature formula is as below:
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