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ACM supports MQTT in two ways.  First, it provides the functionality to publish real-time data gathered by ACM to an MQTT 3.1.1 compliant broker using the industry standard Sparkplug B specification.  Second, AUTOSOL Bridge allows subscription to external MQTT data & publishing of that data via OPC.  The two are independent.  Either can be used alone, or both can be used simultaneously.

Info

While MQTT Publishing can occur without using a secure connection, AUTOSOL suggests using TLS certificates for MQTT publishing in all production environments. It is highly advisable to take these steps before continuing ACM Monitor TLS setup:

  1. Work with a qualified security professional to determine the best means of securing MQTT communications for your use case. AUTOSOL support cannot provide security advice.

  2. Configure the MQTT broker according to your needs. 

  3. Test using a third party MQTT client with support for certificates and Sparkplug B. AUTOSOL used Node-RED during testing, among others.

Certificate configuration in particular tends to be the most problematic area of MQTT setup. Taking these steps, with the help of a qualified security professional, will greatly simplify ACM configuration.

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