Version: 8.1

system.tag

Tag Functions

The following functions give you access to interact with Ignition Tags.

📄️ browse

Returns a list of nodes found at the specified path.

📄️ browseHistoricalTags

Will browse for any historical Tags at the provided historical path.

📄️ configure

Creates tags from a given list of Python dictionaries or from a JSON source string.

📄️ copy

Copies Tags from one folder to another.

📄️ deleteAnnotations

Removes stored annotations from the sqlth_annotations table.

📄️ deleteTags

Deletes multiple tags or tag folders.

📄️ exists

Checks whether or not a tag with a given path exists.

📄️ exportTags

Exports tags to a file on a local file system.

📄️ getConfiguration

Retrieves tags from the Gateway as Python dictionaries.

📄️ importTags

Imports a JSON tag file at the provided path.

📄️ isOverlaysEnabled

Returns whether or not the current client's quality overlay system is currently enabled.

📄️ move

Moves tags or folders to a new destination.

📄️ query

Queries a Tag Provider to produce a list of tags that meet the specified criteria.

📄️ queryAnnotations

Queries annotations stored in the Tag History system for a set of paths for a given time range.

📄️ queryTagCalculations

Queries various calculations (aggregations) for a set of tags over a specified range.

📄️ queryTagDensity

Queries the Tag History system for information about the density of data.

📄️ queryTagHistory

Issues a query to the Tag Historian.

📄️ readAsync

Asynchronously reads the value of the tags at the given paths.

📄️ readBlocking

Reads the value of the tags at the given paths.

📄️ rename

Renames a single tag or folder.

📄️ requestGroupExecution

Sends a request to the specified tag group to execute now.

📄️ setOverlaysEnabled

Enables or disables the component quality overlay system.

📄️ storeAnnotations

Stores annotations into the tag history system.

📄️ storeTagHistory

Inserts data into the tag history system, allowing Tag history to be recorded via scripting.

📄️ writeAsync

Asynchronously writes values to tags at specified paths.

📄️ writeBlocking

Writes values to tags at the given paths.

Functions by Scope

Gateway

Vision

Perspective

Tag Functions​