Appendix C
Data collection takes up this much room
When a log is established in an AKA 245 master gateway, room is set aside for data. Just how much
room is reserved is determined by various parameters.
The amount of room that will be reserved can be seen when new logs are established.
Example:
Only Food Safety logs are collected.
If six parameters from 20 controllers with one hour time interval are logged, the gateway will have a
storage capacity of 540 hours (22½ days and nights) which is 48.5% utilisation of the storage capacity.
After the 540 hours the oldest data will be overwritten by new data.
Below examples are given of three system sizes with diff erent log defi nition options:
Number of
controllers
Log type
Number of
logs
Number of
parameters
per log
Time interval
Period of time
Utilised capacity (%)
One type
Combination
20
One type
Food Safety
20
6
1 h
540 h
48.5
20
12
4 h
960 h
44
Combination
Food Safety
20
6
1 h
180 h
17
46
AKA Service
4
13
1 min.
12 h
29
50
One type
Food Safety
50
6
1 h
216 h
50
50
6
4 h
864 h
50
Combination
Food Safety
50
6
4 h
360 h
21
42.5
AKA Service
6
13
1 min.
6 h
21.5
100
One type
Food Safety
100
6
1 h
100 h
46
100
6
4 h
360 h
42
Combination
Food Safety
100
8
4 h
120 h
19
46.5
AKA Service
10
10
2 min.
12 h
27.5
38
Manual RS8DT102 © Danfoss 09/2004
AKA
245
