Event chart properties can be linked to parameters in other objects in the following ways:
As a target: the Event chart's `HintTime' start and end times can be changed by an external time source. For example, you can link the start and end time properties of a Time Component object to an Event chart's start time and end times that are normally set on the Event chart's configuration dialog box (Events tab). When you run the display, you can change the times on the Time Component which in turn will change the start and end times on the Event chart. For more information on linking the Time Component to another object, see Linking the Time Component to a time-based object.
As a source: the Event chart's tag value, query tag start time, and query tag end time can be linked with another object's parameters. The query tag selection that is made in the Event chart will then effect changes in the linked object. For example, you can link the Event chart's query tag value property to an Alarm Analysis object's filter parameter. When you run the display, you can then change the tag value on the Event chart, and the Alarm Analysis object will display alarms according to how the linked filter parameter is configured. For more information on Alarm Analysis filter parameters, refer to Filtering Alarms.
The following constraints exist when linking Event charts:
When a time parameter is passed to an Event chart, the chart will use the `Absolute' time format, regardless of how the `HintTime' is configured on the chart's configuration dialog box. The object passing the time parameter to the chart can be configured to use any time format.
The Event chart's 'HintTime' will not be available for linking if the event is a master or synchronized event.