Each tag relates to one data point and may have a static or dynamic value that comes from an OPC address, a memory, an expression, or a SQL query.
Ignition Tags can hold data from any number of sources, including PLCs. Learn how to create Tags, set scan rates, and create complex reusable Tag Types.
The Tag Historian in Ignition makes it easy to store, retrieve, and display historical data from any SQL database. Learn about storing and configuring Tag History in a database.
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