BacnetDevice properties

When you add (or edit) a BacnetDevice from the Bacnet Device Manager, several key device properties appear in that dialog, as shown in Figure 25.

Figure 25. Add dialog in Bacnet Device Manager

These properties are described as follows:

Name

As learned, this reflects the “Object_Name” property from the device’s sole Device object.
Each slash (“/”) character (if any) is replaced by a period (“.”) in the Niagara name.

This is only the Niagara component name for this device—if desired, you can edit it to whatever you want. It does not affect the name in the remote BACnet device.
Type

Type is specific type of BacnetDevice. Typically, is single selection only of Bacnet Device.
Device ID

The BACnet Object_Identifier reported (if learned) by this device. Editing does not affect the device’s ID, only the ID used by Niagara to access this device.
MAC Addr

The data link layer MAC address for this device.
Enabled

A flag indicating whether Niagara has enabled communications to the device.
Use Cov

A flag specifying whether Niagara attempts to subscribe for COV notifications, as a way to monitor proxy point values.
- If the device was learned, and Niagara determined that the device indicates support for server-side COV, this flag defaults to true.
- Otherwise, this flag is false. In this case, no proxy points under the device will use COV.
If true, then individual proxy points under the device may use COV subscriptions, depending on their assigned tuning policy. See Bacnet Tuning Policy notes.
Max Cov Subscriptions

(Applies only if “Use Cov” is true.) Specifies the maximum number of COV subscriptions that Niagara will attempt to use with this device. This allows the station to restrict itself from consuming all of the available subscription space in that device.
Poll Frequency

Specifies the polling frequency group (Slow, Normal, Fast) for polling this device, as well as for all its proxy points (regardless of their individual poll frequency settings). Default is Normal.
Poll Frequency property is not used for AX-3.2, and may be hidden from the Add/Edit dialog in future builds.