Tag Access Rights
Tag security is often the best way to configure security for data access. By defining security on a tag, you affect the tag across all windows in the project, as opposed to configuring component security on each component that displays or controls that tag.
If a user opens a window that has components that are bound to a tag that the user doesn't have clearance to read or write to, the component will get a forbidden overlay.
You can add read/write security to individual tags through the Designer. Custom Access Rights must be set to use the Role-based permissions.
See also: Quality Overlays , Permission Properties
To set the access rights to a tag
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Edit a tag by double-clicking on the tag.
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In the General tab, from the Access Rights drop-down, select Custom, and click OK.
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Go to the Permissions tab, from the Add a Role drop-down select the role, and click the Add button.
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Change each roles Access rights by selecting the Read/Write or Read Only options.
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Click OK. Now the user must have appropriate permissions to write to interact with the tag.
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