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Concept

Concept


Products: Enterprise Central, Enterprise Server, Esmi Sense FDP
Functionalities: Trends
12/2/2024

Trend Log Activation

arrow1_rotationActivation Variable arrow1_rotationStart at activation time

​The interval trend log and change of value trend log start recording values when the configured activation conditions are met. If an activation variable is used, both the activation variable and the activation time have to be true for the trend log to start recording.

On all trend logs, you can stop recording values by disabling the trend log. To resume recording, you enable the trend log. For more information, see Disabling a Trend Log .

Activation Variable

You configure an activation variable to have the trend log start recording values when a connected variable goes on. This variable can be a scheduled variable or a variable from a switch.

You can also have the trend log stop recording when the variable, such as a fan, goes off. For example, you can use this feature to log the effective time a fan is on.

 
action_zoom_plus_stroke Activation variable that follows the activation time
Figure: Activation variable that follows the activation time

Start at activation time

You configure an activation time to have the trend log start recording values at a specified time.

For Interval Trend Logs, the logging interval is aligned with the activation time. For more information, see Interval Trend Logs .

 
action_zoom_plus_stroke Trend log that starts recording at activation time
Figure: Trend log that starts recording at activation time

See Also

  • Trend Log Functions
  • Trends Overview
  • Interval Trend Logs
  • Interval Trend Log Properties – Basic Tab
  • Change of Value Trend Log Properties – Basic Tab
  • Variable Triggered Trend Log Properties – Basic Tab
  • Actions Menu – Activation Submenu
  • Creating an Interval Trend Log
  • Editing the Interval of an Interval Trend Log
  • Configuring a Change of Value Trend Log
  • Disabling a Trend Log
  • Enabling a Trend Log