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In addition to configuring the MQTT servers MQTT Engine will connect to, there are a set of advanced options.  These are described below.

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  • The primary host ID to use for 'state' checks.  These checks are used to ensure that the primary backend MQTT client remains connected

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  • A comma seperated list of group IDs to ignore.  If no group IDs are to be ignored, this should be left empty

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  • If using Cirrus Link's Chariot platform, this is the provided Access Key

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  • If using Cirrus Link's Chariot platform, this is the provided Secret Key
  • OPC-UA Server Name
    • The OPC-UA server name for Transmission to use.  By default this is the Ignition default of 'Ignition OPC-UA Server'.
  • Tag Pacing Period
    • The buffer period for outgoing Transmission messages in milliseconds.  The default is 200ms.  This means when a tag change event is detected 200ms will elapse before an MQTT message is sent.  This allows additional tag change events to be buffered and put into the message and in turn reduce the number of generated MQTT messages.

 

 

 

 

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