Glossary – Rockwell Automation 20-750-BNETIP BACnet/IP Option Module User Manual
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Rockwell Automation Publication 750COM-UM005B-EN-P - June 2014
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Glossary
BACnet/IP
BACnet is a data communication protocol for building automation and control
networks. BACnet/IP is a specific type of BACnet network which allows the
protocol to use TCP/IP networks.
BACnet Object
Any object whose properties are accessible through BACnet regardless of its
particular function within the device in which it resides. Services for BACnet
objects are used to access the data of PowerFlex 750-Series drives and its
connected 20-750-BNETIP option module.
BBMD (BACnet Broadcast
Management Device)
BACnet uses IP broadcasts to locate and communicate with other BACnet
devices. These broadcasts are normally blocked by IP routers. The BACnet
specification outlines a method of using a BACnet Broadcast Management
Device (BBMD) that receives broadcast messages on one subnet and forwards
them to another subnet.
Bus Off
A condition that occurs when an abnormal rate of errors is detected in a device.
The bus off device cannot receive or transmit messages on the network. This
condition is often caused by corruption of the network data signals due to noise
or data rate mismatch.
Connected Components Workbench
Software
The recommended tool for monitoring and configuring Allen-Bradley products
and network communication adapters. It can be used on computers running
various Microsoft Windows operating systems. You can obtain a free copy of
Connected Components Workbench software at
ControlFLASH Software
A free software tool used to electronically update the firmware of Allen-Bradley
products and network communication adapters. ControlFLASH software is
downloaded automatically when the firmware revision file for the product being
updated is downloaded from the Allen-Bradley updates website to your
computer.
Device Instance Number
BACnet Device instance is used to identify a BACnet device over the BACnet
network. Device instance is unique across all subnets and routed links.
DHCP (Dynamic Host
Configuration Protocol)
DHCP lets the option module configure itself dynamically at restart if the
network has a DHCP server. The DHCP server assigns the option module a
preconfigured IP address, a subnet mask, and a gateway address; therefore, you do
not have to configure these with the parameters in the option module. DHCP
can make it easier to administer a BACnet network. A free version of the
Rockwell Software BOOTP-DHCP server can be obtained at
DriveExplorer Software
A tool for monitoring and configuring Allen-Bradley products and network
communication option modules. It can be used on computers running various
Microsoft Windows operating systems. DriveExplorer software, version 6.xx or
later, can be used to configure this adapter and connected drive. This software
tool has been discontinued and is now available as freeware at