To create Snmp Client proxy points

Snmp Client proxy points are typical point types with a special Snmp Client extension included.

Prerequisites:

To create Snmp Client proxy points in a device, you must first have a properly configured SnmpNetwork with an SnmpDevice under it and a valid MIB file that is accessible from your Workbench application.

In the Nav side bar, under the station SnmpNetwork node, expand the SnmpDevice node that you are using and double-click on the Points node. The Snmp Point Manager displays.
If you need to use Dependent MIBs, click the Discover button’s drop-down arrow to open the Specify Dependent MIB Directories dialog box where you can specify one or more directories that hold your dependent MIBs.
In the Snmp Point Manager, click the Discover button at the bottom of the view. The Select MIB(s) to load dialog box appears.
In the Select MIB(s) to load dialog box, click the file chooser button to find and select the appropriate MIB file from the File Chooser dialog box, then click the Open button to load the MIB.

The “MIB to load” field is populated with the selected MIB.
In the Select MIB(s) to load dialog box, choose the Walk the MIB? option, if desired, and click the OK button.

The Snmp Point Manager view displays the discovered points in a table at the top of the view pane. If you chose the Walk the MIB? option in the previous step, any discovered values appear in the Values column of the table. Also, the Job Status Bar, at the top of the view, indicates the progress and completion of the MIB-walk job you just initiated.
In the Discovered pane, select one or more of the discovered points that you want to add as proxy points and click the Add button. The Add dialog box appears.
In the Add dialog box, you can edit proxy point properties before each point is added in the Niagara station. OID values are automatically assigned for each point. Refer to “About Point Discover, Add and Match (Learn Process)” in the Niagara Drivers Guide for more details about using the Add dialog box.

Note the following about entries in the Add dialog box:
- Name
  This property is the unique point name. This is the Niagara point name only—change if needed (does not affect the actual Snmp node).
- Type
  It is the Niagara control point type to use for the proxy point.
  
  NOTE: Unlike other editable entries in the Edit dialog, you cannot edit Type later.
- Object Identifier
  As SnmpAgent proxy points are added to the SnmpDevice, they are automatically assigned an index value that corresponds to the column index of the object created for it in the Tridium Input or Output Table.
- Variable Type
  This property specifies the value type that is written out to the SnmpDevice at the location of the OID specified in the Object Identifier property. This property is usually automatically set when the Snmp proxy point is automatically created but must be typed in when creating the proxy point manually.
- Enabled
  This property allows you to set the proxy point in service (with a true value) or to set it out of service (with a false value).
- Device Facets
  This property represents the device proxy point facets for how the value should be displayed in Niagara.
- Facets
  This property represents the parent proxy point’s facets, for how the value should be displayed in Niagara.
- Conversion
  This property specifies the conversion to use between the “read value” (in Device Facets) and the parent point facets, where “Default” is typically used.
- Tuning Policy Name
  This property specifies the Snmp service type to use when binding to this item.
When you have the proxy point(s) configured properly for your usage, click OK.
The points are added to the station, and appear listed in the Database pane of the Snmp Point Manager view.
- If online with the SnmpNetwork, points will poll for current values.
- If programming offline, all proxy points appear down (yellow).

To create Snmp Client proxy points

Related Links