3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS OPERATION Explanation of the statistics print-out You receive for example the following print-out: Column Column 1: Good: Time with no faults, number of faults = 0 Err : Time, where faults have occurred, number of faults = 7 The numbers 524, 578, etc. indicate the message page number in the text store. Column 2: The number indicates, how often the fault has occurred, for exam- ple the fault of page no. 590 has occurred 3 times. In line ”Err” (Error) the number of faults is summed up, the result is 7. Column 3: Here is indicated in percent, how often the fault has occurred applying to the total number of faults (7 = 100 %). Column 4:
The time indicates, how long the fault has been present. If a fault has occurred more than one time, the sum of time will be indi- cated here. Column 5: The duration of the fault applying to the total time with faults (Err), = 4:00:00 (4 hours). This number results in the temporal overlap- ping of the faults. If you sum up the times, you receive 5:30:00. Good and Err apply to the sum of Good and Err, respectively. Refer to the diagram on next page for more information. 124 1 2 3 4 5 Good 524: 578: 590: 608 Err.: 0 = 0.0 % 1 = 14.3 % 1 = 14.3 % 3 = 42.6 % 2 = 28.6 % 7 = 100 % 02:00:00 = 33.3% 01:00:00 = 25.0% 01:00:00 = 25.0% 02:30:00 = 62.5% 01:00:00 = 25.0% 04:00:00 = 66.6%