Use the Log Processing Trend Log - Basic tab to create a log processing trend log to enable calculation within or between various trend logs.
Component |
Description |
Start time |
Enter the starting date and time of the calculation. |
Period interval |
Type the time span of the calculation. |
Trend logs |
Displays trend logs that are used in the calculation. |
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Click to add a trend log to be used in the calculation. |
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Click to edit a trend log that is used in the calculation. |
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Click to delete a trend log from the calculation. |
Name |
Displays the name of the trend log. |
Calculation type |
Displays the type of the calculation. |
Use last known value |
Displays the last known value of the calculation. |
Calculation value |
Type the formula for the calculation. For more information, see Log Processing Trend Log . |
Quick filter |
Displays the list of available log processing trend logs. |
Time zone |
Select the time zone for your calculations. |
Displaying timestamp |
Select the point in calculations where you want your timestamp to be inserted. |
Unit |
Enter the unit of your log. |
Last logged value |
Displays the last logged value. |
Last logged timestamp |
Displays the date and time of the last logged timestamp |
Fetch delay (min) |
Select the waiting time before the calculation starts. |
Persist data |
Select True to store data in the database. |