Alarm Management
Important: Valid license at online change
A log can be executed via online change after a change to the alarm configuration only when a valid CODESYS Online Configuration Change license is available on the PLC. Currently this feature can be used only on devices especially for this purpose.
You can set up an alarm management system in an application to monitor critical conditions and trigger alarms. As soon as the user has acknowledged an occurring alarm, it is removed from the current alarm list. It is possible to archive alarms.
The individual alarms are defined within alarm groups and are typified by alarm classes. To define an alarm, specify which expression in the application is to be monitored, how the alarm state is displayed to the user, and whether and how the alarm has to be acknowledged.
The library AlarmManager is used for programmatic handling of the configured alarms in the application.
You can use the Alarm Table or Alarm Banner visualization elements to visualize the alarm management. Then the user is notified about the alarms and their status is displayed in the user interface. The user can then acknowledge the alarms.
An alarm management which also includes remote devices (distributed alarms) is possible when an HMI device is connected in the network.
