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AVEVA Enterprise SCADA

Confirm the correct settings in the configuration file

Confirm the correct settings in the configuration file

  • Last UpdatedApr 24, 2025
  • 2 minute read

You must confirm the configuration file has the correct settings before you can configure re-alarming for analog, status, rate, multistate, or remote points.

To confirm the correct settings in the configuration file

  1. Navigate to the following directory and open the RealTime_realarm.json file:

    %DNADataRoot%\RealTime\config\Settings

  2. Locate the following text, and update it if required: REALARM_STRING_LOCATION_PREFIX.

    Note: REALARM_STRING_LOCATION_PREFIX is set to No by default.

    If the REALARM_STRING_LOCATION_PREFIX configuration setting is set to No, the text used in the RE_ALARM_SUFFIX field in the DNADataRoot%\RealTime\sdk\resx\libappResources\realarmStrings.resx file will be used in the re-alarm message after the text of the original alarm.

    If the REALARM_STRING_LOCATION_PREFIX configuration setting is set to Yes, the text used in the RE_ALARM_PREFIX field in the DNADataRoot%\RealTime\sdk\resx\libappResources\realarmStrings.resx file will be used in the re-alarm message as a prefix of the message of the original alarm.

  3. Locate the following text, and update it if required: REALARM_TIME_STAMP_EXCLUDE.

    Note: REALARM_TIME_STAMP_EXCLUDE is set to No by default.

    If you change the configuration setting to Yes, the original timestamp will be excluded in the re-alarm messages.

  4. Locate the following text, and update it if required: REALARM_BASED_ON_CREATION.

    Note: REALARM_BASED_ON_CREATION is set to false by default.

    If the REALARM_BASED_ON_CREATION configuration setting is set to false, the re-alarm time period starts counting down after a Controller acknowledges the alarm.

    If the REALARM_BASED_ON_CREATION configuration setting is set to true, the re-alarm time period starts counting down immediately after the system creates the alarm.

  5. Locate the following text, and update it if required: REALARM_APP_EXEC_CYCLE_IN_SECONDS.

    Note: REALARM_APP_EXEC_CYCLE_IN_SECONDS is set to 20 by default.

    The REALARM_APP_EXEC_CYCLE_IN_SECONDS configuration setting defines the interval at which the Re-Alarming application checks if there are any existing alarms configured for re-alarming. The Re-Alarming application will then re-annunciate the appropriate alarms (with a new timestamp) within the window of time equal to REALARM_APP_EXEC_CYCLE_IN_SECONDS divided by 2. Re-alarming uses the new timestamp when determining if it needs to re-annunciate an alarm.

    For example, as per the default value of 20, Re-Alarming checks if there are any alarms in the past 10 seconds or the next 10 seconds that it needs to re-annunciate.