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Note

MQTT Engine 4.0.23 and newer support the acknowledgements of alarm events propagated from the Edge to MQTT Engine on the Central Gateway and inserted in the Ignition Alarm Journal 

Review the Alarm Event Propagation document for system configuration details including the changes needed to the data/ignition.conf file and MQTT Transmission

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  • Alarm Event Enable

    • When enabled and alarms are enabled on tags, MQTT Engine will receive the contents of the triggered alarms at the Edge and creates an alarm event where MQTT Engine is installed.

  • H2 Database PortDirectory - added in 4.0.25
    • Directory to store the H2 Database in.
    • TCP Port to connect to internal H2 Database
    • The AlarmStore.mv file is located here: yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.engine.gateway\h2
    • The AlarmStore is required to maintain the alarm events across MQTT Engine module disable/enable, module restart, or power loss.
    • The default base path for Linux is ~yourIgnitionInstance\data\modules and the database will be included in the Ignition GWBK
    • The default location for Windows Linux is ~yourIgnitionInstance\user-lib\modules and the database will not be included in the Ignition GWBK
    • The database file will be created in this directory under the base path com.cirrus-link\com.cirruslink.mqtt.engine.gateway\h2
  • H2 Database Port
    • TCP Port to connect to internal H2 Database

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GeneralMiscellaneous
GeneralMiscellaneous
General - Miscellaneous

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