Configuring an Alarm Storage

In the section below, you configure an alarm storage named DatabaseFileAlarmStorage.

  1. In the device tree, select the object Alarm Storage, which was automatically created below Alarm Configuration:

  2. Configure as follows:

    • Subdirectory: Leave this field blank. Specifying a directory can be specified optionally only on the PLC where the alarm storage file will be saved.

    • Group Limit: Select the No limit option.

    • DatabaseFileAlarmStorage is configured. At application runtime, the alarms are archived internally as an SQLite database in the directory PlcLogic/alarms on the controller. These database contents can be displayed as historic alarms as a visualization within the alarm table. The requirement is that the History control variable of the alarm table is set (TRUE).