lonworks-LonBooleanProxyExt

This component is the Lon proxy extension for a BooleanPoint. It will link a single Boolean point to a lonworks LonPrimitive. The appropriate conversions will be performed.
Figure 20.   LonBooleanProxyExt properties
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To access this view, expand LonNetwork, expand a device, expand the Points folder, right click Boolean Point and click Views > AX Property Sheet

In addition to the common properties (Status, Fault Cause and Enabled), these properties are unique to this component.

Property Value Description
Device Facets additional properties
Determine how values are formatted for display depending on the context and the type of data. Examples include engineering units and decimal precision for numeric types, and descriptive value (state) text for boolean and enum types.

With the exception of proxy points (with possible defined device facets), point facets do not affect how the framework processes the point’s value.

Besides control points, various other components have facets too. For example, many kitControl and schedule components have facets. Details about point facets apply to these components too, unless especially noted.

You access facets by clicking an Edit button or a chevron >>. Both open an Edit Facets window.

Conversion drop-down list (defaults to Default)
Defines how the system converts proxy extension units to parent point units.

Default automatically converts similar units (such as Fahrenheit to Celsius) within the proxy point.

 NOTE: In most cases, the standard Default conversion is best.  

Linear applies to voltage input, resistive input and voltage output writable points. Works with linear-acting devices. You use the Scale and Offset properties to convert the output value to a unit other than that defined by device facets.

Linear With Unit is an extension to the existing linear conversion property. This specifies whether the unit conversion should occur on “Device Value” or “Proxy Value”. The new linear with unit convertor, will have a property to indicate whether the unit conversion should take place before or after the scale/offset conversion.

Reverse Polarity applies only to Boolean input and relay output writable points. Reverses the logic of the hardware binary input or output.

500 Ohm Shunt applies to voltage input points only. It reads a 4-to-20mA sensor, where the Ui input requires a 500 ohm resistor wired across (shunting) the input terminals.

Tabular Thermistor applies to only a Thermistor input point and involves a custom resistance-to-temperature value response curve for Type 3 Thermistor temperature sensors.

Thermistor Type 3 applies to an Thermistor Input point, where this selection provides a “built-in” input resistance-to-temperature value response curve for Type 3 Thermistor temperature sensors.

Generic Tabular applies to non-linear support for devices other than for thermistor temperature sensors with units in temperature. Generic Tabular uses a lookup table method similar to the “Thermistor Tabular” conversion, but without predefined output units.

Read Value read-only
Displays the last value read from the device, expressed in device facets.
Write Value read-only
Displays the last value written using device facets.
Target Comp read-only
Represents a target Lon component, for example nvoUnitStatus.
Target Name read-only
Provides a name for the LonData element in the Lon component. For example: heatOutputPrimary.
Link Type drop-down list
Configures the type of link between nodes and devices. Options are: Unknown, Standard, Reliable, Critical, Authenticated and Poll Only.
Priority true or false (default)
Enables (true) and disables (false) the priority.