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MQTT Transmission provides a mechanism for publishing MQTT Messages from an Ignition script.  This can be useful for general messaging outside of Sparkplug.  For example, one may want to interface to another system that uses MQTT.  This method allows arbitrary MQTT messages to be published based on events that exist in Ignition.

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MQTT Transmission must have an RPC client enabled and connected to a broker/server to use the publish mechanism


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Prior to release 4.0.18 , configuration for the RPC Client was under the Server Advanced

For release 4.0.18 to 4.0.22, configuration for the RPC Client was under the Server RPC Client Connection

For release 4.0.23 and newer, configuration for the RPC Client is under Server RPC Client Connection and Sets RPC Client

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