Rockwell Automation 20-COMM-P Profibus Adapter - Manual (Page 105)

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 PROFIBUS. 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-P PROFIBUS adapter is an adapter that connects,
PowerFlex drives to a PROFIBUS network. Adapters are sometimes
also called “cards,” “embedded communication options,” “gateways,”
“modules,” and “peripherals.”
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.
Controller
A controller, also called programmable logic controller, is a solid-state
control system that has a user-programmable memory for storage of
instructions to implement specific functions such as I/O control, logic,
timing, counting, report generation, communication, arithmetic, and data
file manipulation. A controller consists of a central processor, input/
output interface, and memory. See also Scanner.
D Data Rate
The data rate is the speed at which data is transferred on the PROFIBUS
network. The available data rates depend on the type of cable and total
cable length used on the network:
Baudrate Maximum Cable Length
9.6K 1000m
19.2K 1000m
45.45K 1000m
93.75K 1000m
187.5K 1000m
500K 400m
1.5M 200m
3M 100m
6M 100m
12M 100m
20COMM-UM006A-EN-P.book Page 1 Friday, September 28, 2001 10:43 AM