Dev #4: 1587 - 002D -SMA Technologie AG - 
Serial Number: 00015122
pac: 0.00 W
e-today: 4.99 kWh
e-total: 63858.36 kWh
read bad crc 6940, should be 2B9C. Message *should* be rejected.
read bad crc 22DC, should be F797. Message *should* be rejected.

today:
2004-01-10 11:37:04:      0 W
2004-08-15 22:29:52:      0 W
2004-12-09 05:34:24:      0 W
2005-04-24 18:22:24:      0 W
2005-05-31 04:11:12:      0 W
2005-05-19 00:54:56:      0 W
2005-05-28 03:22:08:      0 W
2005-07-27 19:43:28:      0 W
2005-08-10 11:24:16:      0 W
2005-07-05 01:35:28:      0 W
2005-07-08 02:24:32:      0 W
2005-07-11 03:13:36:      0 W
2005-08-19 13:51:28:      0 W
2005-09-06 18:45:52:      0 W
2005-09-28 00:29:20:      0 W
2005-10-10 21:57:52:      0 W
2005-11-04 22:42:40:      0 W
2005-11-30 08:33:36:      0 W
2006-01-02 08:27:12:      0 W
2036-10-15 01:46:27:      0 W
2038-01-13 04:27:13:     -0 W
1903-03-08 00:39:23:      2 W
1904-06-05 03:20:28:      2 W
1905-09-03 06:00:34:     -2 W
1906-12-02 08:39:32: -36893488147419103232 W
1908-03-01 11:20:07:     -0 W
1909-05-30 13:58:45:     -0 W
1910-08-28 16:40:11:      0 W
1911-11-26 19:21:06:      2 W
1913-02-23 22:01:02:     -0 W
1914-05-25 00:41:09:     -0 W
1915-08-23 03:20:48:      0 W
1916-11-20 06:00:11:     -0 W
1918-02-18 08:40:09: -36893488147419103232 W
1919-05-19 11:18:48:      2 W
1920-08-16 13:59:57:      0 W
1921-11-14 16:37:54:      0 W
1923-02-12 19:20:21:      2 W
1924-05-12 22:00:27:     -0 W
1925-08-11 00:37:27: -36893488147419103232 W
1926-11-09 03:15:59:      0 W
1928-02-07 05:58:24:     -0 W
1929-05-07 08:37:59:     -2 W
1930-08-05 11:15:51:      2 W
1931-11-03 13:55:49:     -0 W
1933-01-31 16:36:12:      0 W
1934-05-01 19:16:48:     -0 W
1935-07-30 21:57:28:     -0 W
1936-10-28 00:37:56:      0 W
1938-01-26 03:17:21:     -2 W
1939-04-26 05:56:13:     -0 W
1940-07-24 08:35:54:      0 W
2021-02-08 21:36:24:     -0 W
2006-12-12 13:40:00:    185 W
2006-12-12 13:50:00:    121 W
2006-12-12 14:00:00:     88 W
2006-12-12 14:10:00:     54 W
2006-12-12 14:20:00:     18 W
2006-12-12 14:30:00:      2 W
2006-12-12 14:40:00:      0 W
2006-12-12 14:50:00:      0 W

last month:
2006-11-11:    2.450 kWh
2006-11-12:    0.610 kWh
2006-11-13:    2.560 kWh
2006-11-14:    2.850 kWh
2006-11-15:    2.400 kWh
2006-11-16:    0.880 kWh
2006-11-17:    3.130 kWh
2006-11-18:    1.140 kWh
2006-11-19:    1.500 kWh
2006-11-20:    1.900 kWh
2006-11-21:    3.660 kWh
2006-11-22:    2.490 kWh
2006-11-23:    2.100 kWh
2006-11-24:    1.280 kWh
2006-11-25:    3.350 kWh
2006-11-26:    2.260 kWh
2006-11-27:    3.450 kWh
2006-11-28:    3.390 kWh
2006-11-29:    1.640 kWh
2006-11-30:    1.250 kWh
2006-12-01:    0.340 kWh
2006-12-02:    4.350 kWh
2006-12-03:    1.040 kWh
2006-12-04:    2.290 kWh
2006-12-05:    2.650 kWh
2006-12-06:    3.190 kWh
2006-12-07:    3.070 kWh
2006-12-08:    2.480 kWh
2006-12-09:    2.990 kWh
2006-12-10:    2.580 kWh
2006-12-11:    4.270 kWh