Dev #5: 1587 - 002D -SMA Technologie AG - 
Serial Number: 00015122
pac: 0.00 W
e-today: 18.35 kWh
e-total: 36331.42 kWh
read bad crc 885D, should be 1E56. Message *should* be rejected.

today:
1969-12-31 22:00:00:      0 W
1917-08-08 04:01:36:      0 W
1918-11-06 06:51:08:      0 W
1920-02-04 09:32:22:      0 W
1921-05-04 12:14:21:      0 W
1922-08-02 14:56:18:      0 W
1923-10-31 17:36:56:      0 W
1925-01-28 20:16:00:      0 W
1926-04-28 22:57:47:      0 W
1927-07-28 01:35:25:     -2 W
1928-10-25 04:16:08:      0 W
1930-01-23 06:58:12:     -0 W
1931-04-23 09:39:30:     -0 W
1932-07-21 12:18:41:     -0 W
1933-10-19 15:00:03:      2 W
1935-01-17 17:40:48:      2 W
1936-04-16 20:20:20:     -0 W
1937-07-15 22:57:52: 36893488147419103232 W
1938-10-14 01:38:15:     -2 W
1940-01-12 04:18:45:     -0 W
1941-04-11 06:58:37:     -0 W
1942-07-10 09:38:52:      2 W
1943-10-08 12:21:21:     -2 W
1945-01-05 15:01:32:     -2 W
1946-04-05 17:41:42:     -0 W
1947-07-04 20:21:51:     -0 W
1948-10-01 23:01:55: -36893488147419103232 W
1949-12-31 01:42:00: -158456325028528675187087900672 W
1951-03-31 04:22:03: 36893488147419103232 W
1952-06-28 07:02:10: 36893488147419103232 W
1953-09-26 09:42:13:      0 W
1954-12-25 12:22:17:     -0 W
1956-03-24 15:02:20: 8589934592 W
1957-06-22 17:42:22:     -0 W
1958-09-20 20:22:26: -8589934592 W
1959-12-19 23:02:30:     -0 W
1961-03-19 01:42:33:      0 W
1962-06-17 04:22:35:      0 W
1963-09-15 07:02:39: -8589934592 W
1964-12-13 09:42:40:     -2 W
1966-03-13 12:22:44: -8589934592 W
1967-06-11 15:02:51: -36893488147419103232 W
1968-09-08 17:42:34:      0 W
1969-12-07 20:21:52: 158456325028528675187087900672 W
1971-03-07 23:02:39: 36893488147419103232 W
1972-06-05 01:42:03: 8589934592 W
1973-09-03 04:21:39: -8589934592 W
1974-12-02 07:00:14:      2 W
1976-03-01 09:41:57:      2 W
1977-05-30 12:20:30: 158456325028528675187087900672 W
1978-08-28 15:00:28:     -0 W
1979-11-26 17:40:24:     -2 W
1981-02-23 20:22:00:      0 W
1982-05-24 23:02:49:      0 W
1983-08-23 01:42:31: 36893488147419103232 W
1984-11-20 04:22:55:      0 W
1986-02-18 07:02:12:      0 W
1987-05-19 09:41:59:     -0 W
1988-08-16 12:22:29:     -0 W
1989-11-14 14:59:44: -8589934592 W
1991-02-12 17:36:17:      2 W
1992-05-12 20:14:15:     -0 W
1993-08-10 22:55:12:      0 W
1994-11-09 01:36:28:      0 W
1996-02-07 04:16:55:     -0 W
1997-05-07 06:56:43:     -0 W
1998-08-05 09:40:07:      0 W
1999-11-03 12:20:12:     -0 W
2001-01-31 14:59:45: -36893488147419103232 W
2002-05-01 17:37:32: -36893488147419103232 W
2003-07-30 20:15:57:      0 W
2004-10-27 23:00:25:      0 W
2006-01-26 01:35:53:      0 W
2007-04-26 04:14:14:     -0 W
2008-07-24 06:57:16:      0 W
2009-10-22 09:35:46:     -0 W
2011-01-20 12:17:09:     -0 W
2012-04-19 14:54:53:     -0 W
2013-07-18 17:33:25:      0 W
2014-10-16 22:17:37:      0 W
2018-07-27 15:30:00:    267 W
2018-07-27 15:40:00:     69 W
2018-07-27 15:50:00:      2 W
2018-07-27 16:00:00:      3 W
2018-07-27 16:10:00:      1 W
2018-07-27 16:20:00:     52 W
2018-07-27 16:30:00:     93 W
2018-07-27 16:40:00:     22 W
2018-07-27 16:50:00:      6 W
2018-07-27 17:00:00:      0 W
2018-07-27 17:10:00:      0 W
2018-07-27 17:20:00:      0 W
2018-07-27 17:30:00:      0 W
2018-07-27 17:40:00:      0 W

last month:
2018-06-26:   30.510 kWh
2018-06-27:   29.410 kWh
2018-06-28:   23.620 kWh
2018-06-29:   30.760 kWh
2018-06-30:   28.960 kWh
2018-07-01:   26.150 kWh
2018-07-02:   30.260 kWh
2018-07-03:   28.920 kWh
2018-07-04:   20.410 kWh
2018-07-05:   19.250 kWh
2018-07-06:   25.660 kWh
2018-07-07:   26.970 kWh
2018-07-08:   25.600 kWh
2018-07-09:   17.980 kWh
2018-07-10:   21.240 kWh
2018-07-11:   22.110 kWh
2018-07-12:   16.740 kWh
2018-07-13:   19.430 kWh
2018-07-14:   24.030 kWh
2018-07-15:   27.620 kWh
2018-07-16:   21.990 kWh
2018-07-17:   19.930 kWh
2018-07-18:   20.930 kWh
2018-07-19:   19.440 kWh
2018-07-20:    9.070 kWh
2018-07-21:   20.200 kWh
2018-07-22:   17.030 kWh
2018-07-23:   23.950 kWh
2018-07-24:   22.790 kWh
2018-07-25:   22.950 kWh
2018-07-26:   21.450 kWh