No matter what the organization level is in the PLC program, HMI tags can always be put in a logical, hierarchical structure, which can be duplicated as needed for multiple identical control system areas. With HMI tags, I load up the Tag DB in a function editor (not View Studio, do a global search and replace on the IO Access name, and reload that into my View project. Again, have to go and replace every single instance of the communications pointer at least. ![]() I can edit HMI tags in Excel, or UE Studio, or any of my other real text editors.ĭirect access tags are bad when you reuse display components across multople projects. Having a display on multiple screens means having to search each and every screen if a tag source changes.ĭirect access tags are only editable within the absolutely worst HMI development package available in the world, FTView Studio. ![]() Why are direct access tags more trouble down the line?
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