BACnet/IP Channel Tag

Introduction

The BACnet/IP Channel Tag provides a SCADA communication channel for BACnet.

The BACnet/IP Channel Tag supports two modes of operation:

Direct Connection: The communication channel directly accesses the BACnet network.
Foreign Device: The communication channel accesses the BACnet network using a BBMD.

The BACnet/IP Channel Tag supports the properties of the Active Channel Tag plus these properties:

Property	Type	Version	Description
BACnetPort	WSTRING	3.78	The UDP port number used for BACnet communications. The default port is 47808.
ConnectionType	USINT	3.78	The type of connection to establish: Direct Connection: Directly access the BACnet Network. Foreign Device: Register as a foreign device with a BBMD.
BACnetNetwork	WSTRING	3.78	The IP Network to use for BACnet communication. Use CIDR notation for this property. For example: 192.168.1.0/24 Note: This property is ignored if ConnectionType is Foreign Device
BBMDAddress	WSTRING	3.78	The address of the BACnet Broadcast Management Device (BBMD). Use any of the following: An IP address A node name A fully qualified domain name Note: This property is ignored if ConnectionType is Direct Connection
RegistrationInterval	TIME	3.78	The interval between each registration with the BBMD. Note: This property is ignored if ConnectionType is Direct Connection
RegistrationOffset	TIME	3.78	The offset added to the RegistrationInterval to get the actual time of the registration. Note: This property is ignored if ConnectionType is Direct Connection

The BACnet/IP Channel Tag supports the tag commands of the Active Channel Tag.

This is an example configuration for a BACnet/IP channel:

Property	Value	Comment
BACnetPort	47808	The default UDP port for BACnet communications.
ConnectionType	Foreign Device	Access the BACnet network using a BBMD.
ReplyTimeout	15s	The driver waits up to 15 seconds for responses.
BBMDAddress	192.168.92.68	The BBMD is at IP Address 192.168.92.68.
RegistrationInterval	5m	Five minutes between each registration with the BBMD.
RegistrationOffset	0s	Each registration occurs on the 5 minute boundary.

The BACnet/IP Channel Tag builds on the features of these tag types:

To learn about abnormal conditions in SCADA applications.

For the meaning of terms used in Fernhill SCADA.