Digital input points

Configures a Boolean Input proxy point.
Figure 428.   Digital Input, Configuration tab
Image

You access this view from the main menu by clicking Controller Setup > Remote Devices > Remote Drivers, followed by double-clicking the NrioNetwork driver, selecting and double-clicking a module, clicking the Point Manager link, clicking the Digital Points tab, followed by clicking the hyperlink on a Digital Input point.

The input facets and proxy extension properties are the same as those documented for other Nrio proxy points.

Property Value Description
Facets additional properties Refer to .
Proxy Ext additional properties Refer to .
Status read-only Indicates the condition of the network, device or component at the last check.

{ok} indicates that the component is licensed and polling successfully.

{down} indicates that the last check was unsuccessful, perhaps because of an incorrect property, or possibly loss of network connection.

{disabled} indicates that the Enable property is set to false.

{fault} indicates another problem. Refer to Fault Cause for more information.

Edit window

Figure 429.   Facets Edit window
Image

This window opens when you click the Edit button.

Property Value Description
True Text text Sets up the text to appear when Status for the point is true.
False Text text Sets up the text to appear when Status for the point is false.

Digital Proxy Ext properties

Figure 430.   Digital Proxy Ext properties
Image

In addition to the standard properties (Status, Fault Cause and Enabled), these properties configure this extension.

Property Value Description
Conversion drop-down list 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.

Tuning Policy Name drop-down list (defaults to Default Policy)

Selects a network tuning policy by name. This policy defines stale time and minimum and maximum update times.

During polling, the system uses the tuning policy to evaluate both write requests and the acceptability (freshness) of read requests.

Read Value read-only true or false  
Write Value read-only true or false  
Poll Frequency drop-down list Configures how frequently the system polls proxy points.
Instance number Defines the point’s I/O terminal address based on its hardware type.

If duplicated (same instance as same hardware type, same board), the point reports a fault status.

If an edit attempt is made to an instance already in use by another proxy point, the system discards the edit, and retains the previous instance value.

Ui Type drop-down list