Rockwell Automation 20-COMM-B BACnet MS/TP Adapter - Manual (Page 63)

Glossary
A
Adapter
Devices such as drives, controllers, and computers usually require an
adapter to provide a communication interface between them and a
network such as BACnet MS/TP. An adapter reads data on the network
and transmits it to the connected device. It also reads data in the device
and transmits it to the network.
The 20-COMM-B adapter connects PowerFlex 7-Class drives to a
BACnet MS/TP network. Adapters are sometimes also called “cards,”
“embedded communication options,” “gateways,” “modules,” and
“peripherals.”
B
BACnet MS/TP
BACnet is a data communication protocol for building automation and
control networks. BACnet MS/TP (master-slave/token-passing) is a
specific type of BACnet network designed to run at speeds of 1 Mbps or
less over twisted pair wiring.
Baud Rate
The speed at which data is transferred on the network. Each device on a
network must be set for the same baud rate.
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.
C
ControlFLASH
ControlFLASH is an Allen-Bradley software tool that lets users
electronically update firmware on printed circuit boards. The tool takes
advantage of the growing use of flash memory (electronic erasable
chips) across industrial control products.
D
DPI (Drive Peripheral Interface)
A second generation peripheral communication interface used by various
Allen-Bradley drives and power products, such as PowerFlex 7-Class
drives. It is a functional enhancement to SCANport.