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Chariot Access

• Chariot Cloud Access Key
  • If using Cirrus Link's Chariot platform, this is the provided Access KeyNo longer used
• Chariot Cloud Secret Key
  • If using Cirrus Link's Chariot platform, this is the provided Secret KeyNo longer used

Miscellaneous

• Block Node Commands
  • Whether or not to block outgoing commands from MQTT Engine to Edge Nodes. This is true by default and provides a security mechanism for preventing accidental outgoing commands from MQTT Engine.
• Block Device Commands
  
  • Whether or not to block outgoing commands from MQTT Engine to Devices. This is true by default and provides a security mechanism for preventing accidental outgoing commands from MQTT Engine.
• Block Property Changes
  • Whether or not to block incoming properties from modifying MQTT Engine tag properties. This is false by default so property changes will be applied if not included in the Filtered Property list under 'Advanced'.
• File Policy
  
  • The policy for handling Files contained within a Sparkplug payload.
    • Ignore: The default policy. The file will be ignored.
    • Store: The file will be stored to the local file system in the directory specified by the File Location field.  A Tag will be created with a String value representing the file URI.
• File Location
  
  • The directory to store the files when using the Store policy described above.
• Store Historical Events
  • Whether or not to write historical change events directly to the Historian (if history is enabled on a Tag) instead of updating the live Tag value.
  • Note: Store and Forward does not guarantee all data is stored and forwarded. There are some edge cases that are not currently handled with regard to data loss in the event of connection failures related to MQTT keep alive timeouts. This window of potential missed data can be reduced by decreasing MQTT Transmission and MQTT Engine configurable keep alive timeouts.

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• Enable Tag Latching

  • Whether or not to enable Tag latching to synchronize MQTT Tag updates with events in Ignition.

• Latch Timeout

  • The amount of time to wait for a Tag latch to be released before timing out.

• Latch Tags

  • A list of Trigger Tag and Latch Tag pairs.
• Filtered Properties
  • A semicolon delimited list of Tag properties to filter/ignore on received Tags.

• Enable BD Sequence Validation

  • Whether or not to enable BIRTH/DEATH sequence number validation (required by Sparkplug specification).
• Custom Properties
  • Do not use unless instructed to by Cirrus Link personnel.

• Enable Primary Host Subscriptions

  • Whether or not to enable MQTT Engine subscriptions on STATE/# and State/# topics even when a PrimaryHostID is not configured within MQTT Engine. This setting is for debugging purposes only.

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