To discover Lon nodes

Perform this task to discover Lon nodes.

To discover Lon nodes:

1. In the Nav side bar, double click the LonNetwork to bring up the Lon Device Manager.

2. Click the Discover  button to automatically learn what devices are on the working domain (or, if different, the zero-length domain).

   The manager view changes to “learn mode” (two panes), with a top “Discovery” pane. A progress bar appears at the top of the view, and updates as the Lon Discover job occurs.

3. When the discovery job completes, discovered Lon nodes are listed in the top table. The bottom pane, “Database,” is a table of nodes that are currently mapped into the Niagara station—initially, this table will be empty.

   For a new LonNetwork, instead of “Adding” devices, you typically use Quik Learn to populate your LonNetwork. See Using Quik Learn for a new LonNetwork.

   This works a little differently than the device manager in most other NiagaraAX drivers. See Lon Device Manager key points for more details.

To see a node’s current domain table

You can do this for any Lon node, including any node where you have just pressed its service pin.

1. Right-click the LonNetwork and select Views->Lon Utilities Manager.

   The Lon Utilities Manager appears.

2. Near the bottom, click the (device) drop-down and select the node just found from a service pin.

3. Click the lower-left drop-down control (command menu) and select Data Structs.

   To the right (command submenu), click the drop-down control and select Domain Table.

4. Click the Execute  button.

   The view updates to show the device’s domain table, including the domain length (Domain Len) and ID for the device. If the device is configured on something other than the zero-length domain (Domain Len not “0”), you must configure the LonNetwork’s working domain to match. See To change the working domain.