Glossary – Rockwell Automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Module User Manual

Page 189

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Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012

189

Glossary

The following terms and abbreviations are used throughout this manual.
For definitions of terms not listed here, see the Allen-Bradley Industrial
Automation Glossary, publication

AG-7.1

.

ADC (Automatic Device

Configuration)

An RSLogix 5000 software, version 20.00 or later, feature that supports the
automatic download of configuration data upon the Logix controller establishing
an EtherNet/IP network connection to a PowerFlex 750-Series drive (firmware
revision 4.001 or later) and its associated peripherals.

BOOTP (Bootstrap Protocol)

BOOTP lets the option module configure itself dynamically at restart if the
network has a BOOTP server. The BOOTP server assigns the option module a
preconfigured IP address, a subnet mask, and a gateway address; therefore, you do
not have to configure these using the parameters in the option module. BOOTP
can make it easier to administer an Ethernet network. A free version of the
Rockwell Software® BOOTP/DHCP Server can be accessed at

http://

www.ab.com/networks

.

Bridge

A network device that can route messages from one network to another. A bridge
also refers to a communication module in a ControlLogix controller that
connects the controller to a network. See also scanner.

CIP (Common Industrial Protocol)

CIP is the transport and application layer protocol used for messaging over
EtherNet/IP, ControlNet, and DeviceNet networks. The protocol is used for
implicit messaging (real-time I/O) and explicit messaging (configuration, data
collection, and diagnostics).

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.

Data Rate

The speed at which data is transferred on the EtherNet/IP network. You can set
the adapter to a data rate of 10Mbps Full-Duplex, 10Mbps Half-Duplex,
100Mbps Full-Duplex, or 100Mbps Half-Duplex. If another device on the
network sets or auto-negotiates the data rate, you can set the adapter to
automatically detect the data rate.

Datalinks

A Datalink is a type of pointer used by PowerFlex 750-Series drives to transfer
data to and from the controller. Datalinks allow specified parameter values to be
accessed or changed without using explicit messages. When active, each 32-bit
Datalink in a PowerFlex 750-Series drive consumes 4 bytes in the input image
table and/or 4 bytes in the output image table of the controller.

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