Using Latch Variables to Filter Alarm Events Filtering by the contents of a latch variable can be useful when there are a lot of alarm events displayed. If the latch variable assigned to an alarm in i

Displaying Alarm Events for a Specific Time In many cases, it is known in which time period the problems occurred and these were recorded as alarms. Then it can be useful to display only those alarms

Deleting the Alarm History You can insert an input element in the visualization which the operator can use to delete the previously recorded alarm history at runtime. The history displayed until then

Evaluating Alarm Information in the Program Code The alarm table visualization element can write information from the visualization to an application variable at runtime. This variable can be evaluate

Recording Data and Displaying as a Trend You can define project variables and/or device parameters whose values are recorded over time. The display of the recorded data is decoupled from the recording

Configuring a Recording To execute trend recording on a runtime system, you need an application with a Trend Recording Manager object that contains at least one Trend Recording object. Then you can co

Getting Started with Trend Recording To execute trend recording on a runtime system, you need an application with a Trend Recording Manager object that contains at least one Trend Recording object. Th

Configuring an Interval-Based Recording In the case of interval-based recording of data, this is done at a fixed time interval, which is set to 10 s by default. You can adjust the time interval. Tip R

Configuring a Task-Dependent Recording You can configure a database on the runtime system and the data buffering. Timeout for trend recording During a trend recording, it can happen that the applicati

Configuring Variables Important The number of variables is limited for trend recording. But you can adjust the number per trend recording. To do this, open the object. You will find the Maximum number