Within each of the four point data categories, there are two point types:
(read-only) e.g. BooleanPoint or NumericPoint
Represents a read-only data item. Unlike with the writable point type, there are no “input” type properties.
As copied directly from the control palette, there is no application for read-only points. However, proxy points based upon
read-only points, identical except for a non-null proxy extension and manner of creation, are both common and useful. For
more details, see About the proxy extension, or refer to “About proxy points” in the Drivers Guide.
Writable
Represents a data item that can be written, as well as read by the station (typically). An array of 16 “InN” inputs, each with a different priority level, is available to write the value. By default, the point’s value can also be set with an operator-issued action (right-click command), available at priority levels 8 (override) and 1 (emergency). For more details, see About point actions. Writable points also have other features. See, About writable points.
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