The BACnet/IP driver provides communication with devices supporting BACnet protocol in its implementation over IP.
BACnet is a protocol defined by ASHRAE (American Society of Heating, Refrigeration and Air-conditioning Engineers). The ANSI/ASHRAE Standard 135-2004 document contains the protocol definition. Annex to the document contains specification of the BACnet transported over IP, which is the implementation chosen for this driver.
The BACnet protocol has a number of services that permit to read/write the properties of the configured Data Objects. In order to get values of the Present_Value and Status_Flags properties, it is possible to request the values with a ReadPropertyMultiple or subscribing a COV (Change Of Value) notification for the Data Object. Using the ReadPropertyMultiple means poll the object with a request and receive an answer containing the data; using COV notification means subscribe to the device for a notification when Present_Value or Status_Flags of a Data Object change. This second way results in a spontaneous message from the device, whenever a Present_Value or a Status_Flags changes its value, reducing the traffic at the minimum.
Release
11.4.1.5 dbL269
Interface Device
Any standard device BacNet/IP
Manufacturer
BacNet
Requirement/Description
Binary / Analog / Multistate - I/O and value
License Code
Require License Code
Import Tags
Support Import Tags
Operating System
WIN 32/64
Downloads
|
Requires Runtime license option activation for 11.4 desktop versions |
For more information on this driver please refer to the help relating to the driver in Movicon 11