To create Snmp Agent proxy points

Snmp Agent proxy points are typical point types with a special Snmp Agent extension included. To add Snmp Client proxy points, refer to To create Snmp Client proxy points.

To create Snmp Agent proxy points in a device, you must first have a properly configured SnmpNetwork with a Local Device under it.

1. In the nav side bar, under the station Snmp Network node, expand the Local Device node and double-click on the Points node.

   The Snmp Agent Point Manager displays.

2. In the Snmp Agent Point Manager, click the New button at the bottom of the view (or right-click in the view and select New from the popup menu). The New dialog box appears.

3. In the New dialog box, do the following:

   • in the Type to Add field, select the type of proxy point that you want to add from the option list.

   • in the Number to Add field, type in a number to indicate the quantity of proxy points that you want to add.

   • click the OK button.

   Another New dialog box appears.

4. In the New 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.

   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 a Niagara control point type to use for the proxy point.

     Unlike other editable entries in the Add dialog, you cannot edit Type later.

   • Index

     As SnmpAgent proxy points are added to the SnmpAgent device, 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.

   • Default Value

     The default value is used for the output of the proxy point on startup prior to being set (by an external SNMP SET request). You can manually reset the proxy point output to the default value at any time by selecting the Action Reset Point To Default action.

   • 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 that affect how the value should be displayed in Niagara.

   • Facets

     This property represents the parent Niagara proxy point’s facets, that affect 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.

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

   The proxy points are added to the station, and appear listed in the Snmp Manager view as well as under the Points node in the nav side bar.

   • 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

Snmp Client proxy points are typical point types with a special Snmp Client extension included. To add Snmp Agent proxy points, refer to To create Snmp Agent proxy points.

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.

1. In the nav side bar, under the station Snmp Network node, expand the Snmp Device node that you are using and double-click on the Points node. The Snmp Point Manager displays.

2. 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.

   Figure 3. Adding dependent MIBs

   
   
   

   
   

3. In the Snmp Point Manager, click the Discover button at the bottom of the view. The Select MIB(s) to load dialog box appears.

4. 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.

5. 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.

6. 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 NiagaraAX-3.x 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 a Niagara control point type to use for the proxy point.

     Unlike other editable entries in the Edit dialog, you cannot edit Type later.

   • Object Identifier

     As SnmpAgent proxy points are added to the SnmpAgent device, 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 SNMP device 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 Niagara 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.

7. 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 manually

Snmp Client proxy points are typical point types with a special Snmp Client extension included. To add Snmp Agent proxy points, refer to To create Snmp Agent proxy points.

To manually create Snmp Client proxy points in a device, do the following:

1. In the nav side bar, under the station Snmp Network node, expand the Snmp Device node that you are using and double-click on the Points node. The Snmp Point Manager displays.

2. In the Snmp Point Manager, click the New button at the bottom of the view. The New dialog box appears.

3. In the New dialog box:

   • in the Type to Add field, select the type of proxy point that you want to add from the option list.

   • in the Number to Add field, type in a number to indicate the quantity of proxy points that you want to add.

   • click the OK button.

   A second New dialog box appears.

4. In the New dialog box, you can edit proxy point properties before each point is added in the Niagara station. OID values are NOT automatically assigned for the added point because the point has not been “discovered”.

   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 a Niagara control point type to use for the proxy point.

     Unlike other editable entries in the Add dialog, you cannot edit Type later.

   • Object Identifier

     Because the Snmp proxy points are not “discovered” when you use the New button, the OID values must be typed in manually.

   • Variable Type

     This property specifies the type of the value written out to the SNMP device 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 that affect how the value should be displayed in Niagara.

   • Facets

     This property represents the parent Niagara proxy point’s facets that affect 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.

5. 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).