Dev #5: 1587 - 002D -SMA Technologie AG - 
Serial Number: 00015122
pac: 0.00 W
e-today: 5.54 kWh
e-total: 26071.53 kWh
read bad crc BB8D, should be 322E. Message *should* be rejected.

today:
1970-01-01 02:38:24:      0 W
1921-07-28 11:04:00:      0 W
1922-10-26 13:45:20:      0 W
1924-01-24 16:25:34:      0 W
1925-04-23 19:07:43:      0 W
1926-07-22 21:48:19:      0 W
1927-10-21 00:28:24:      0 W
1929-01-18 03:07:45:      0 W
1930-04-18 05:47:38:      0 W
1931-07-17 08:27:53:      0 W
1932-10-14 11:08:02:      0 W
1934-01-12 13:48:18:      0 W
1935-04-12 16:28:31:      0 W
1936-07-10 19:09:00:      0 W
1937-10-08 21:49:32:      0 W
1939-01-07 00:30:48:     -0 W
1940-04-06 03:11:17:     -0 W
1941-07-05 05:51:05:     -0 W
1942-10-03 08:33:04:      0 W
1944-01-01 11:13:33:      0 W
1945-03-31 13:52:02:     -0 W
1946-06-29 16:31:49:     -2 W
1947-09-27 19:10:57:      2 W
1948-12-25 21:52:48:     -0 W
1950-03-26 00:33:17:     -2 W
1951-06-24 03:12:48:     -0 W
1952-09-21 05:52:47:      2 W
1953-12-20 08:32:11:      2 W
1955-03-20 11:13:49:      2 W
1956-06-17 13:54:53:     -0 W
1957-09-15 16:35:16: 36893488147419103232 W
1958-12-14 19:15:51: -36893488147419103232 W
1960-03-13 21:54:24:     -0 W
1961-06-12 00:31:08: 36893488147419103232 W
1962-09-10 03:12:12:      0 W
1963-12-09 05:53:41:      2 W
1965-03-08 08:35:12:      2 W
1966-06-06 11:13:37: -36893488147419103232 W
1967-09-04 13:53:19: 36893488147419103232 W
1968-12-02 16:31:32:     -0 W
1970-03-02 19:10:17:      2 W
1971-05-31 21:51:45:      0 W
1972-08-29 00:31:43:      0 W
1973-11-27 03:13:07:     -2 W
1975-02-25 05:54:00:     -2 W
1976-05-25 08:31:36:      2 W
1977-08-23 11:07:55:      0 W
1978-11-21 13:47:17:      0 W
1997-04-25 01:12:16:      0 W
2015-10-13 12:30:00:     81 W
2015-10-13 12:40:00:    102 W
2015-10-13 12:50:00:    307 W
2015-10-13 13:00:00:    298 W
2015-10-13 13:10:00:    693 W
2015-10-13 13:20:00:    332 W
2015-10-13 13:30:00:    140 W
2015-10-13 13:40:00:     63 W
2015-10-13 13:50:00:     66 W
2015-10-13 14:00:00:     69 W
2015-10-13 14:10:00:     58 W
2015-10-13 14:20:00:     12 W
2015-10-13 14:30:00:      0 W
2015-10-13 14:40:00:      0 W
2015-10-13 14:50:00:      0 W
2015-10-13 15:00:00:      0 W
2015-10-13 15:10:00:      0 W
2015-10-13 15:20:00:      0 W

last month:
2015-09-12:   13.240 kWh
2015-09-13:   10.150 kWh
2015-09-14:   10.160 kWh
2015-09-15:    9.050 kWh
2015-09-16:    3.300 kWh
2015-09-17:   13.100 kWh
2015-09-18:    8.370 kWh
2015-09-19:   13.790 kWh
2015-09-20:   12.280 kWh
2015-09-21:    3.600 kWh
2015-09-22:    6.850 kWh
2015-09-23:   10.510 kWh
2015-09-24:   10.670 kWh
2015-09-25:    7.630 kWh
2015-09-26:   10.290 kWh
2015-09-27:   12.210 kWh
2015-09-28:   12.290 kWh
2015-09-29:   12.300 kWh
2015-09-30:   12.650 kWh
2015-10-01:   11.900 kWh
2015-10-02:   11.390 kWh
2015-10-03:    9.080 kWh
2015-10-04:    8.990 kWh
2015-10-05:    2.110 kWh
2015-10-06:    7.010 kWh
2015-10-07:    2.240 kWh
2015-10-08:    7.700 kWh
2015-10-09:    8.520 kWh
2015-10-10:    5.870 kWh
2015-10-11:    9.050 kWh
2015-10-12:    7.320 kWh