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Glossary, Ork. (refer to the – Rockwell Automation 22-COMM-P PowerFlex Profibus Adapter User Manual

Page 105

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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 22-COMM-P Profibus adapter connects PowerFlex 4-Class drives to
a Profibus Network. Adapters are sometimes also called “cards,”
“embedded communication options,” “gateways,” “modules,” and
“peripherals.

C

ControlFLASH

An Allen-Bradley software tool that lets users electronically update
firmware on printed circuit boards.

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 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:

Baud Rate

Maximum Cable Length

9.6 Kbps

1000 m

19.2 Kbps

1000 m

93.75 Kbps

1000 m

187.5 Kbps

1000 m

500 Kbps

400 m

1.5 Mbps

200 m

3 Mbps

100 m

6 Mbps

100 m

12 Mbps

100 m