With what type of event detector does the Active Event control work?

The Active Event control works with external event detectors. This type of detector is designed to listen for specific events that occur outside the system, typically from other applications or systems that generate alerts based on certain conditions. The Active Event control utilizes these external triggers to initiate responses or actions within the AVEVA Historian environment.

External event detectors are important in that they allow the system to react dynamically to changes occurring in real-time, such as alarms from production equipment or changes in process conditions. This interaction helps enhance the overall functionality and effectiveness of the data analysis and monitoring capabilities of the Historian Server.

In contrast, internal event detectors would encompass events generated within the historian itself, such as data thresholds being reached, which may not necessarily be what the Active Event control is designed to leverage. Combined detectors would imply integration of multiple signals, while adaptive might suggest a learning component which does not directly align with the function of the Active Event control in listening for external signals.