Dev #5: 1587 - 002D -SMA Technologie AG - 
Serial Number: 00015122
pac: 0.00 W
e-today: 1.64 kWh
e-total: 37568.46 kWh
read bad crc 7C1E, should be EBB7. Message *should* be rejected.

today:
1969-12-31 22:00:00: -8589934592 W
1938-06-20 13:42:56:      0 W
1939-09-18 20:58:08:      0 W
1940-12-16 23:40:16:      0 W
1942-03-17 02:22:08:      0 W
1943-06-15 05:02:48:      0 W
1944-09-12 07:45:12:      0 W
1945-12-11 10:29:04:      0 W
1947-03-11 13:11:35:      0 W
1948-06-08 15:52:03:      0 W
1949-09-06 18:31:33:     -0 W
1950-12-05 21:12:05:     -0 W
1952-03-04 23:52:39:      0 W
1953-06-03 02:32:32:      0 W
1954-09-01 05:13:18:     -0 W
1955-11-30 07:53:01:      0 W
1957-02-27 10:31:58:     -0 W
1958-05-28 13:11:36:     -0 W
1959-08-26 15:53:36:     -0 W
1960-11-23 18:30:56:     -2 W
1962-02-21 21:08:28:      0 W
1963-05-22 23:49:09:      0 W
1964-08-20 02:30:09:      0 W
1965-11-18 05:10:27:      0 W
1967-02-16 07:50:29:      0 W
1968-05-16 10:29:34:      0 W
1969-08-14 13:09:51:      0 W
1970-11-12 15:50:58:      0 W
1972-02-10 18:30:30:      0 W
1973-05-10 21:10:57:      0 W
1974-08-08 23:49:50:     -0 W
1975-11-07 02:31:47:      0 W
1977-02-04 05:12:41:     -0 W
1978-05-05 07:52:34:      0 W
1979-08-03 10:32:05:      0 W
1980-10-31 13:09:52:     -0 W
2021-02-08 08:47:20:      0 W
2018-12-12 12:20:00:    154 W
2018-12-12 12:30:00:    123 W
2018-12-12 12:40:00:     96 W
2018-12-12 12:50:00:     35 W
2018-12-12 13:00:00:      1 W
2018-12-12 13:10:00:      0 W
2018-12-12 13:20:00:      0 W
2018-12-12 13:30:00:      0 W

last month:
2018-11-11:    4.640 kWh
2018-11-12:    3.150 kWh
2018-11-13:    4.010 kWh
2018-11-14:    4.180 kWh
2018-11-15:    1.590 kWh
2018-11-16:    0.690 kWh
2018-11-17:    4.170 kWh
2018-11-18:    4.370 kWh
2018-11-19:    2.490 kWh
2018-11-20:    0.640 kWh
2018-11-21:    3.310 kWh
2018-11-22:    1.820 kWh
2018-11-23:    0.800 kWh
2018-11-24:    0.580 kWh
2018-11-25:    0.510 kWh
2018-11-26:    1.950 kWh
2018-11-27:    1.090 kWh
2018-11-28:    0.540 kWh
2018-11-29:    1.440 kWh
2018-11-30:    2.700 kWh
2018-12-01:    1.210 kWh
2018-12-02:    1.500 kWh
2018-12-03:    2.160 kWh
2018-12-04:    2.320 kWh
2018-12-05:    0.600 kWh
2018-12-06:    0.650 kWh
2018-12-07:    1.440 kWh
2018-12-08:    1.120 kWh
2018-12-09:    1.810 kWh
2018-12-10:    1.320 kWh
2018-12-11:    2.600 kWh