Use the Configure Change of Value Trend Log page to configure the settings of a change of value trend log.
Component |
Description |
Logged variable |
Enter the variable that you want to log. |
|
Set unit Click to open the Unit Selection dialog box where you select the unit. For more information, see Unit Selection Dialog Box . |
Delta |
Select the minimum value change that triggers a new record. |
Activation variable |
Enter the variable that is to start the trend log. |
Activation time |
Type the start time of the trend log. |
Maximum log interval |
Select the maximum time that can pass between two recordings regardless of whether the delta value has been exceeded or not. |
Log size |
Select the number of records to store before old records are overwritten including internal records generated by the trend. |
Available trend storage |
Displays the trend storage usage and the number of records left in the trend storage. |
Clear when enabled |
Select True to clear the trend log when it is enabled. |