Trends
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279 Topic(s)
How to
You create an interval trend log to record a value of a variable at specified and regularly occurring increments of time.
How to
You create an extended trend log to store log records for a longer period of time and free up memory in the field server.
Specifications
Specifications
How to
You add a trend log series to a trend chart to compare trend data from different logs or variables.
How to
You open diagnostics in WebStation to check the health of your system.
Concept
Use a calculation method to process the records of the trend log before presenting them in a trend log list or a trend chart. The original records in the trend log are not affected by the calculation method. The calculation method is applied to the trend log records grouped by a specific time interval.
How to
You view trend logs in a temporary multi trend log list to compare the values of the trend logs in the multi trend log list without saving the multi trend log list for reuse.
How to
You open a trend log in a temporary trend log list to view the recorded values in a list. When you close the temporary trend log list, the list is not saved.
How to
You open a trend log as a temporary trend chart to view the recorded values graphically. When you close the temporary trend chart, the chart is not saved.