JUMO LOGOSCREEN 550 cf, Руководство по эксплуатации

Страница: 26 / 138

2 Device description
26
Recording
duration The recording duration depends on various factors:
- number of analog channels and event traces being recorded
- storage cycle
- number of events in the event list.
Internal recording duration (without external CF card)
Recording duration with CF card
The calculation of the recording duration is made for the storage of
momentary, minimum, maximum or average values. If peak values are
recorded, then the times are shorter, since a maximum and minimum value is
recorded each time.
The recording capacity will be further reduced if a large number of event
messages are also stored.
Optimization of
recording
duration The recording duration can be optimized by process-oriented selection of the
storage cycle.
In normal operation (no error, no alarm, ...) a storage cycle that is as long as
possible (e.g. 60sec, 180sec, …) should be selected, depending on the
particular application.
In the event of an alarm or error, the storage cycle can be shortened via event
operation, with the effect that the measurement data are recorded with a high
time resolution.
Number of
channels Memory
size Storage
cycle
1 min Storage
cycle
30 sec Storage
cycle
10 sec Storage
cycle
1 sec
3 approx.
1MB 42.2 days 21.1 days 7 days 17 hours
6 approx.
1MB 29.5 days 14.8 days 4.9 days 12 hours
Number of
channels Memory
size Storage
cycle
1 min Storage
cycle
30 sec Storage
cycle
10 sec Storage
cycle
1 sec
3 64 MB 8.8 years 4.4 years 1.5 years 1.8 months
3 128 MB 17.6 years 8.8 years 2.9 years 3.5 months
3 256 MB 35.3 years 17.6 years 5.9 years 7.1 months
6 64 MB 6.2 years 3.1 years 1.0 years 1.2 months
6 128 MB 12.3 years 6.2 years 2.1 years 2.5 months
6 256 MB 24.7 years 12.3 years 4.1 years 4.9 months