Dev #4: 1587 - 002D -SMA Technologie AG - 
Serial Number: 00015122
pac: 0.00 W
e-today: 7.29 kWh
e-total: 47792.11 kWh
read bad crc 5D31, should be 52AA. Message *should* be rejected.

today:
1971-04-01 07:33:47:      0 W
1971-04-01 07:33:47:     -0 W
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1971-04-01 07:33:47:   -417 W
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1971-04-01 07:33:47: -2996238607283746550933330895126396928 W
1971-04-01 07:33:48: -77182960388868116841757199318510469120 W
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1971-04-01 07:33:48:      2 W
1971-04-01 07:33:48:     56 W
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1971-04-01 07:33:48: 124665284777335586816 W
1971-04-01 07:33:48: 3251403024377707495424 W
1971-04-01 07:33:48: 80431334983481503514624 W
1971-04-01 07:33:48: 2117999814311109587894272 W
1971-04-01 07:33:48: 55610587702272942036484096 W
1971-04-01 07:33:48: 1392682544196052809261514752 W
1971-04-01 07:33:48: 35900261139276027972074602496 W

last month:
2021-06-23:   24.230 kWh
2021-06-24:   18.920 kWh
2021-06-25:   16.080 kWh
2021-06-26:   19.830 kWh
2021-06-27:    5.410 kWh
2021-06-28:   10.860 kWh
2021-06-29:    9.210 kWh
2021-06-30:    8.910 kWh
2021-07-01:   19.240 kWh
2021-07-02:   19.300 kWh
2021-07-03:   11.570 kWh
2021-07-04:   14.960 kWh
2021-07-05:   18.620 kWh
2021-07-06:   13.540 kWh
2021-07-07:   14.310 kWh
2021-07-08:   13.960 kWh
2021-07-09:   14.810 kWh
2021-07-10:    9.060 kWh
2021-07-11:   19.700 kWh
2021-07-12:   12.490 kWh
2021-07-13:   18.110 kWh
2021-07-14:   19.220 kWh
2021-07-15:   12.610 kWh
2021-07-16:   28.050 kWh
2021-07-17:   26.940 kWh
2021-07-18:   25.520 kWh
2021-07-19:   23.060 kWh
2021-07-20:   24.030 kWh
2021-07-21:   23.720 kWh
2021-07-22:   24.490 kWh
2021-07-23:   23.660 kWh