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Properties common to most tags
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Name
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Name
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How the tag will be presented and referenced in the system. The tag path will be the provider, the folder structure, and this name.
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Value
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Value
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The value of the tag. Can only be modified if the tag allows value writing and the user has sufficient privileges.
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Quality
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Quality
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The data quality of the value. If not GOOD (integer value 192), the value should not be trusted. The Data Quality section explains quality codes in more depth.
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Datatype
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Datatype
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The type of the value. It is important that this be set as correctly as possible with regards to the tag's underlying data source. The SQLTags system will attempt to coerce any raw incoming value (for example, from OPC or a SQL query) into the desired type.
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Enabled
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Enabled
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Whether the tag will be evaluated by the scan class. If false, the tag will still be present, but will have a bad quality.
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Access Mode
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AccessRights
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Specifies the access level allowed to the tag- read/write, read only, or custom. If custom, the tag will use the permission settings
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Scan Class
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ScanClass
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The scan class that will execute the tag. The scan class dictates the rate and conditions on which the tag will be evaluated.
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Additional properties - OPC Tags
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OPC Server
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OPCServer
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The server against which to subscribe the data point.
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OPC Item Path
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OPCItemPath
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The path to subscribe to on the server. The point will be subscribed at the rate dictated by the scan class.
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Additional properties - Tag in external providers
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Driver
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DriverName
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The name of the Ignition gateway that will be responsible for the execution of the tag. All other gateways will monitor the value.
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