I'm new to Ignition. I have an existing project in Ignition Designer. I've created a new project and imported all of the resources from the original project.
My issue is that the two projects are somehow coupled because when I delete tags in the new project, it deletes them in the original project.
What am I missing?
Tags are specific to the Tag provider on the gateway, and not specific to projects. If you want to store project specific variables, try custom session properties (Note that these are also specific to a project's session and not linked between clients).
Resources for being new:
Ignition SCADA Courses Online | Inductive University
Welcome | Ignition User Manual
My take on: How to learn Ignition from scratch? : PLC
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You're used to a paradigm like Wonderware or factory talk, where the tags are bound to an application. Ignition, the tags are stored at the gateway, and accessible to all applications. Use tag providers and folders to structure your tags into organized groups.
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To go along with what, @dillon and @robertm have said. Tags should be used for information that needs to be Global to the gateway and across projects, or if they are values that are external to the gateway (Devices or Thrid Party OPC Servers).
Other than that, you should use properties to hold values. Where those properties should be located it dependent to how they are used.
Unlike with other SCADA platoforms such as FT you do not need a tag to hold all values.
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