BACnet Driver

Introduction

BACnet is a Data Communication Protocol for Building Automation and Control Networks. It is a standard protocol developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). For more information see http://www.bacnet.org/.

BACnet is recognized by:

American National Standard Institute (ANSI)
European Standards Institute
International Standards Organization (ISO)

The BACnet Driver in Fernhill SCADA supports devices using the BACnet protocol.

Fernhill SCADA BACnet Tags

The BACnet Driver provides these tag types to support communication with BACnet Devices:

Icon	Tag Type	Version	Description
	BACnet/IP Channel Tag	3.78	An IP Address used for BACnet/IP communication.
	BACnet Device Tag	3.78	An BACnet Device.

To configure Fernhill SCADA to communicate with a BACnet Device, do the following:

Create and configure a BACnet/IP Channel Tag.
Create a BACnet Device Tag. Configure these properties of the BACnet Device Tag:
- Set the Channel property of the BACnet Device Tag to the channel tag you created in step 1.
- Set the DeviceInstance property of the BACnet Device.
Create I/O Data Point Tags to represent the data in the BACnet Device. For each I/O Data Point Tag you create:
- Set the IODataSource property to the name of the BACnet Device Tag you created in step 2.
- Set the IOItemName property to a BACnet Property Address.

Fernhill SCADA I/O Data Point Tags

You can use these I/O Data Point Tags to represent individual data points in the PLC:

Tag Type	Version	Description
I/O Analog Data Point Tag	3.12	Maps an Analog Data Point Tag to an external data source.
I/O Digital Data Point Tag	3.12	Maps a Digital Data Point Tag to an external data source.
I/O String Data Point Tag	3.12	Maps a String Data Point Tag to an external data source.
I/O Word Data Point Tag	3.12	Maps a 16-bit Word Data Point Tag to an external data source.
I/O Double Word Data Point Tag	3.12	Maps a 32-bit Double Word Data Point Tag to an external data source.
I/O Long Word Data Point Tag	3.48	Maps a 64-bit Long Word Data Point Tag to an external data source.

Further Information

BACnet Data Address

To learn how to choose a data location in a BACnet Device.

Fernhill SCADA Drivers

For information about other drivers available in Fernhill SCADA.

Glossary

For the meaning of terms used in Fernhill SCADA.