Loggers - Tags

This article covers loggers related to Tags that were introduced in Ignition version 7.8.X.

Loggers in this article:

• SQLTags.Manager

• Tags.Provider[default].SubscriptionManager

SQLTags.Manager

• Monitors the subscription users to existing Tags in Tag Providers. Also monitors the execution of Tag writes.
  • DEBUG log that captures events of existing Tag subscriptions being monitored through Vision windows or through the Tag Browser. (Example: A Tag being viewed inside of a folder in the Tag Browser will log a DefaultSourceUnwrapper subscription to that Tag. When the folder is closed, the DefaultSourceUnwrapper will unsubscribe:
    

    Subscribing DefaultSourceUnwrapper(ClientSubscriptionProxy(sessionId=EA6EF039)) to [default]Testing/Bindings/Random/RandomInteger1 ... Unsubscribing DefaultSourceUnwrapper(ClientSubscriptionProxy(sessionId=EA6EF039)) to [default]Testing/Bindings/Random/RandomInteger1

• • DEBUG log that captures a write to an existing Tag. Will provide a full Tag path, the requested value change, the user who initiated the write, and response including the write time and Tag quality if successful:
    

    Executing writes to 1 tags. User={schedule=Always, firstname=, notes=, language=null, username=admin, lastname=}, system=true. Values: [default]Testing/Bindings/CompactLogix/HOA=500.0 (id=6BF07F0B) Write finished in 5 ms. Results: [default]Testing/Bindings/CompactLogix/HOA=[Good] Good; unspecified.

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Tags.Provider[default].SubscriptionManager

• Monitors state changes for existing Tags. Will log at the rate of both the Tag Group/Scan Class, value changes to the Tag, and when the Tag itself is being viewed.
  • DEBUG log showing an example of a simulated Tag subscription that changes value every second due to a 1 second Tag Group/Scan Class. This will log a unique TagChangeEvent id each value change:
    

    Notify global listeners of tag change: com.inductiveautomation.ignition.common.sqltags.model.event.TagChangeEvent@5a003c96[tagPath=[default]Testing/Bindings/Random/RandomInteger1, prop=Value,indexes=<null>]

• • DEBUG log that captures events of existing Tag subscriptions being monitored through Vision windows or through the Tag Browser. (Example: A Tag being viewed inside of a folder in the Tag browser will log a DefaultSourceUnwrapper subscription to that Tag. When the folder is closed, the DefaultSourceUnwrapper will unsubscribe. Similar to Manager set to DEBUG but this one also provides a response after DefaultSourceUnwrapper attempts to subscribe:
    

    Subscribing DefaultSourceUnwrapper(ClientSubscriptionProxy(sessionId=EA6EF039)) to [default]Testing/Bindings/CompactLogix/RUN_CMD Tag reference created for '[default]Testing/Bindings/CompactLogix/RUN_CMD' (key='testing/bindings/compactlogix/run_cmd'). Executing tag found? Yes com.inductiveautomation.ignition.common.sqltags.model.event.TagChangeEvent@2d350b5 [tagPath=[default]Testing/Bindings/CompactLogix/RUN_CMD,prop=<null>,indexes=<null>]

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