The trend buffers reside in the device and store the trend samples for the device. The number of samples stored in each individual trend buffer is user-configurable (see Trend Extension Attributes). When the buffer gets full, you can choose to have the new trends overwrite the old ones or to have the trending stop. Whether the trends are overwritten or trending stops, you can configure the system to issue an alarm when the buffer gets full. You can also configure to transfer samples to a configured device.
|
Interval (Min.) |
Interval (Sec.) |
Buffer for Previous Time Period |
|||||||
|---|---|---|---|---|---|---|---|---|---|
|
1 Hr. |
2 Hrs. |
4 Hrs. |
8 Hrs. |
16 Hrs. |
1 Day |
2 Days |
3 Days |
||
|
1 |
60 |
60 |
120 |
240 |
480 |
960 |
1,440 |
2,880 |
4,320 |
|
2 |
120 |
30 |
60 |
120 |
240 |
480 |
720 |
1,440 |
2,160 |
|
5 |
300 |
12 |
24 |
48 |
96 |
192 |
288 |
576 |
864 |
|
10 |
600 |
6 |
12 |
24 |
48 |
96 |
144 |
288 |
432 |
|
15 |
900 |
4 |
8 |
16 |
32 |
64 |
96 |
192 |
288 |
|
30 |
1,800 |
2 |
4 |
8 |
16 |
32 |
48 |
96 |
144 |
|
60 |
3,600 |
1 |
2 |
4 |
8 |
16 |
24 |
48 |
72 |
|
120 |
7,200 |
1 |
2 |
4 |
8 |
12 |
24 |
36 |
|