3.3.6 Total Accumulated Quantities
The metrology module generates the following accumulated total quantities: ACC_T0, ACC_T1 and ACC_T2.
Total accumulated quantities are specified by PCx_TYPE. They are used to save the total accumulated energy. They are updated every full line cycle (20 ms for 50 Hz and 16.667 ms for 60 Hz).
They are stored in sQ33.30 format. Max ±8589934 KWh/KVarh/KAmp2h can be stored in these quantities.
Before resetting the metrology firmware, the application must store present ACC_T0, ACC_T1 and ACC_T2. After resetting the metrology firmware, the application must restore ACC_T0, ACC_T1 and ACC_T2.
ACC_Tx is stored in sQ33.30 format.
| Name: | ACC_T0/ACC_T1/ACC_T2 |
| Offset: | Metrology_Acc_Out[50-52] |
| Property: | Read |
| Bit | 63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | |
| ACC_Tx[63:56] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | |
| ACC_Tx[55:48] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | |
| ACC_Tx[47:40] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | |
| ACC_Tx[39:32] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| ACC_Tx[31:24] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| ACC_Tx[23:16] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| ACC_Tx[15:8] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| ACC_Tx[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | |||||||||