To discover I/O points

Perform this task to discover I/O points.

1. In the Nrio Device Manager, in the Exts column, double-click the Points icon   in the row representing the NrioModule you wish to explore.

   This brings up its Nrio Point Manager.

2. Click the Discover button to learn what I/O points are available on the NrioModule.

   When the discovery job completes, discovered I/O points are listed in the top pane of the view, in the “Discovered” Hardware Points table. Each I/O point occupies one row.

3. To add Nrio point folders and proxy points, see To add Nrio point folders (optional) and To add discovered I/O points as Nrio proxy points.

To add Nrio point folders (optional)

Use of point folders to organize proxy points can provide benefits. Note point folders can be added at any time, and proxy points “moved” into them, if needed. However, if you add point folders before adding points, this can be a time saver.

Perform this optional task to add Nrio point folders to contain and organize Nrio proxy points.

1. Click the New Folder button in the Nrio Point Manager to add an Nrio Point Folder.

2. In the popup Name dialog, enter a name for the folder and click OK. (In general, short names are recommended to keep ord lengths manageable.)

   The Nrio point folder is added under the Points container, at the current hierarchy level.

3. As needed, repeat steps 1 and 2 to add more Nrio point folders, either at the current level under the Points container, or after double-clicking an Nrio point folder to move down one level in folder hierarchy.

   Changes were made in the Nrio Point Manager that improve point folder usage when adding discovered Nrio proxy points. For instance, you can select (highlight) a point folder in the lower Database pane, then add one or more discovered points (from the top pane) directly to that folder. For more information, see Point folder / discovery notes.

To add discovered I/O points as Nrio proxy points

Only one Nrio proxy point can be added for each discovered “Hardware Point”. This prevents input configuration errors and output write contentions to the I/O hardware points.

Perform this task to add Nrio proxy points.

1. Select the I/O point or points in the discovered Hardware Points pane of the Nrio Point Manager.

2. (Optional) Select a target Nrio point folder in the Database pane (click to highlight folder).

3. You can map selected points in the station in different ways:

   • Drag from the Discovered pane to Database pane (brings up an Add dialog).

   • Double-click an item in the Discovered pane (also brings up an Add dialog).

   This works the same as in other driver’s Point Manager views, except for the optional target/selection of an Nrio point folder (typically, you need to work in the point manager view for that point folder).

4. When the Add dialog appears, you typically edit a number of fields for each I/O point. For complete details, see Add and Edit dialog fields.

   The following brief summaries explain Add dialog fields:

   • Name is the Nrio proxy point name—by default this appears as “AbbrevIoTypeTerminalNumber”, for example, “ui4”, “ao2”, and so on. Typically, you change this to describe the I/O purpose.

   • Type is the Nrio “type,” which is selectable for any “universal input,” but fixed for any output. See Universal Input selection notes and Output type selection notes.

     Unlike other entries in the Add dialog, you cannot edit the point’s Type later.

   • Address is the learned I/O point’s hardware address.

   • Poll Frequency specifies the point’s poll frequency group (default is Normal).

   • Conversion specifies the conversion type used between the Nrio proxy extension’s “Device Facets” and the parent point’s facets. See Conversion type.

   • Facets are the Nrio proxy point’s facets, for how the value should be displayed in Niagara.

5. When you have Nrio proxy point(s) configured properly for your usage, click OK.

   The proxy points ares added to the station, and appear listed in the Database pane.

   For more details, see About Nrio proxy points.

   In cases where you notice a fault status for input points you have edited with “non-default” facets, this is likely related to a mismatch of the “Units” in the point’s automatically-appended Linear Calibration Ext. To clear this fault status, expand the point’s Linear Calibration Ext and edit Units to match the units in the point’s facets.For more information, see Linear Calibration Ext.