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1. Set up a tag on the Transmission side with an alarm. 

   Note
   The Ack Mode must be set to Manual or Auto The alarm properties that are currently propagated are: Name, Priority and Notes

   
   Below is an example that will generate an event if the value of the tag goes above 100:
   

2. Trigger the alarm.
   In this example, we set the value of the memory tag to 101. This resulted in an alarm event at the Edge as shown below in the Alarm Status Table:
   
   
   
   
3. Because the alarm event was published via MQTT, we can also see it on the Central Gateway running MQTT Engine:
   
   
   
   

4. At this point, we can acknowledge the alarm at either the Edge or the MQTT Engine side via the Alarm Status Table by clicking the 'Acknowledge' button as shown below. Once acknowledged, it will be reflected as so on both the Edge and the MQTT Engine sides.

   
   

   
   

   Note
   In order for the alarm to be acknowledged from MQTT Engine, the Edge must be in an active Sparkplug session with MQTT Engine If the Edge node is offline, the following will be displayed in the Alarm Status Table and Ignition logs :at MQTT Engine and once the Edge node comes online, the alarm can be successfully acknowledged from MQTT Engine.

   
   

5. After doing so, you can see the acknowledged alarm on the Central Gateway (MQTT Engine side) :
   
   
   
   and the Edge (MQTT Transmission side) :
   
   
   
   
   
   
   

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