Mapping BACnet Field Points using Auto Discovery - Metasys - LIT-1201531 - System Integration - BACnet Controller Integration - 10.1

BACnet Controller Integration Technical Bulletin

Product name
BACnet Controller Integration
Document type
Technical Bulletin
Document number
Revision date

About this task

Once one or more BACnet devices are configured, add BACnet field points that are mapped to BACnet objects in the BACnet device.

The supervisory controller must be online with the devices on the BACnet/IP network to use Auto Discovery. For mapping points offline, see Mapping BACnet Field Points manually.


  1. On the Insert menu, select Field Points. The Insert Point Wizard, Destination screen appears.
    Figure 1. Insert Point Wizard (Destination)

    The Insert Field Points Wizard starts automatically after inserting a Field Device. Because it selects the newly added device as the destination, the wizard opens to the Select Definition Mode screen bypassing the Destination screen.

    Add BACnet devices during the Mapping BACnet Field Points using Auto Discovery procedure. To view the selectable devices, click the plus sign next to the BACnet Integration object to open the list of mapped BACnet devices.

  2. Select the BACnet device to which objects are to be integrated and click Next. The Insert Point Wizard, Select Definition Mode screen appears.
  3. Click Assisted and then click Invoke Auto Discovery. The Wizard Auto Detect Utility starts. If an auto discovery has not already run, it begins immediately. If the Wizard Auto Detect Utility fails to start automatically, click Restart.

    When Auto Discovery finishes, a list of discovered BACnet objects appears. The fields automatically fill in with the auto discovered data from the BACnet device. The Native Object Name is the BACnet Object Name in the device.

    Note: If the total number of discovered points exceeds the limit, then the returned discovery indicates Page 1 of X, where X is the total number of pages. A restart increments the page and displays the next set of discovered points. Each completion of the point mapping process also increments the page. After the last page, the point mapping process begins again at Page 1.
    Figure 2. Auto Detect Utility screen

    The Identifier derives from the remote device BACnet Object Identifier and indicates both the object type and instance number. The Name defaults to the Native BACnet Object Name; you can change the Name field during the configuration process if desired. The Name appears in the navigation tree. The BACnet Object Name in the device is unchanged. The Instance Number comes from the BACnet Object Identifier.

  4. Close the window by clicking the X in the upper-right corner of the screen.
  5. When the auto discovery window is closed, the point mapping utility dialog box appears as shown in Figure 11. The Assisted Identity/Configure screen appears. Use this screen to select which points to map from the BACnet device.
    Figure 3. (Part 1 of 2) Insert Point Wizard (Assisted Identity/Configuration)

  6. Select points individually by double-clicking on them, or use the Map All function. When an item is selected to be mapped, a green check mark appears next to it, and the right side of the screen displays a summary of the mapping items. A blue check mark represents an item that has been previously mapped.
    Note: Deselecting a folder in the tree does not deselect the objects under the folder. Use this feature if the objects should appear directly under the controller in the navigation tree. Map All is not recommended. Mapping objects that you do not need will impact performance.
    Figure 4. (Part 2 of 2) Insert Point Wizard (Assisted Identity/Configuration)

  7. After selecting all the points to map, click Next. The Insert Point Wizard summary screen appears.
  8. Review the Summary screen and click Finish.