Creating a New BACnet Object

BACnet utilizes "objects" to represent either physical items or descriptions of processes/calculations/operations. There are multiple object "types", each with a list of required and optional properties. These include:

Value

Object Type

Value

Object Type

0

analog-input

12

loop

1

analog-output

13

multi-state-input

2

analog-value

14

multi-state-output

3

binary-input

15

notification-class

4

binary-output

16

program

5

binary-value

17

schedule

6

calendar

18

averaging

7

command

19

multi-state-value

8

device

20

trend-log

9

event-enrollment

21

life-safety-point

10

file

22

life-safety-zone

11

group

To Create a New BACnet Object:

  1. ClosedRight-click on a device in the Workbench64 Project Explorer then click on "Object".

    Creating a New BACnet Object

-OR-

Select a device within the Workbench64 Project Explorer, then click on the Add button in the Home ribbon at the top of the screen in Workbench64, then click on Object.

Creating a New Object in Workbench64 Ribbons

  1. ClosedThe BACnet Object properties window will appear in the right pane of Workbench64. Enter a Name and Description in the top text entry fields.

    BACnet Object Properties

The following Object Settings may be changed:

    • Object Type – Choose from AnalogInput, Analog Output, AnalogValue, BinaryInput, BinaryOutput, BinaryValue, Calendar, Command, Device, EventEnrolment, File, Group, Loop, MultistateInput, MultistateOutput, MultistateValue, Program, Schedule, Averaging, TrendLog, LifeSafetyPoint, LifeSafetyZone, TypeAccumulator, PulseConverter

    • Instance - An Object's Instance number identifies it within a BACnet Device. In combination with the selected Object Type, the number entered here will then determine the Object ID (see below) in the field to the right.

    • Object ID – Objects on an interconnected BACnet/IP network should have unique numbers to quickly identify them and prevent possible confusion.

    • Override Default Polling Rate (s) – Sets the frequency of communication between BACnet objects and the BACnet Connector. Range can be between 0 and 4194303.

    • Override Default Priority – Sets a number between 1 and 16 as to the criticality of an object, in comparison with others. Assigning a priority level marks the importance of messages and which will override others. Some numbers are pre-assigned (1, 2, 5, 6, 8), with life safety naturally having highest priority. Other numbers (3, 4, 7 and 9 through 16) are not assigned and therefore are available for users to set their own priorities. Default is 8.

  1. Click Apply to proceed.

See also:

Exploring the Network