Glossary – Rockwell Automation 20-750-CNETC PowerFlex Coaxial ControlNet Option Module User Manual
Page 139
Rockwell Automation Publication 750COM-UM003B-EN-P - November 2012
139
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
.
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).
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
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.
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.
ControlNet Network
An open producer-consumer communication network with features, such as
redundant media and deterministic I/O timing, designed for high-performance
or time-critical requirements.
General information about ControlNet and the ControlNet specification is
available on the ControlNet website at
.
Data Rate
The speed at which data is transferred on the ControlNet network (fixed at 5
Mbps).
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.