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- 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.
- 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.
Advanced
These are advanced settings/features and they should be left with default values in almost all cases. Please be careful when changing these settings from their default values.
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.
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.
Enable BD Sequence Validation
- Whether or not to enable BIRTH/DEATH sequence number validation (required by Sparkplug specification).
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