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General

How do I know if my MQTT

MQTT Modules

General

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modules are compatible with

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my version of

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• A: See this page.

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Ignition?

Do I need to do anything special to connect to my TTN (www.thethingsnetwork.org) broker?

Why are the parameter labels for the modules displayed oddly in the UI?

What do each of the MQTT Modules do in simple terms?

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• MQTT Distributor - A MQTT v3.1.1 compliant MQTT Server.
• MQTT Engine - A module which acts as a MQTT to Ignition Tag Bridge.  This module listens for and captures incoming MQTT messages and creates/updates Ignition tags based on those messages.  In addition it listens for tag writes in Ignition and converts those to MQTT messages to send/update data and I/O on the remote MQTT devices.  This module can be thought of as a tool to receive and visualize MQTT data in Ignition.
• MQTT Transmission - An Ignition Tag to MQTT Bridge.  This module listens for tag change events in Ignition and converts those to outgoing Sparkplug MQTT messages.  In addition, it listens for incoming MQTT messages and updates tag values based on those incoming messages.  This module can be thought of as a tool to MQTT enable Ignition Tag providers and push that data to an MQTT Server and MQTT Engine.

MQTT Transmission

How do I exclude tags from being included in Transmission Sparkplug message payload

How do I exclude tags from being stored in a configured HistoryStore when Transmission is offline

What does the MQTT 'Transmission Control/Refresh' in the MQTT Transmission tag provider do?

MQTT Engine

How do I persist alarm and history configurations for MQTT Engine tags?

How do I manage

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UDT definition changes at the edge?

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If I delete and update a UDT definition in MQTT Engine will all of the existing instance's member Tags lose their custom properties and configurations (such as history)?

• A: Yes, if a UDT definition is deleted and recreated, any existing UDT instances will lose any custom properties and/or configuration.

MQTT Distributor

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• Coming soon

MQTT Engine:

• Q: I deleted my MQTT Engine tags and lost all alarm and history configuration. How do I persist this configuration?
  • A: See the existing documentation for recommendations on persisting alarm and history configuration for MQTT Engine tags.

MQTT Transmission:

• Q: What does the MQTT 'Transmission Control/Refresh' in the MQTT Transmission tag provider do?
  • A: This tag is used to 'refresh' the MQTT client(s) associated with MQTT Transmission.  By default, any new tags added to a transmitter definition will not be published to the MQTT server.  By writing to the 'Transmission Control/Refresh' tag any newly added tags will be detected and published.

Cloud Modules

All Cloud Injector Modules

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Cloud Modules

 Why I am seeing Quality codes in Injector payloads that are wrong/undocumented? For example, '-2147483133' instead of '515' for Bad_Disabled? 

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