Allen-Bradley PowerFlex 20-comm-c FRN 1. Series, User Manual

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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 ControlNet. 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-C ControlNet adapter is an adapter that connects,
PowerFlex drives to a ControlNet network. Adapters are sometimes also
called “embedded communication options,” “modules,” and
“peripherals.
”
C
CAN (Controller Area Network)
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 CAN is a serial bus protocol on which DPI is based.
A controller consists of a central processor, input/output interface, and
memory. See also Scanner.
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.
ControlNet
An open producer-consumer communication network with features,
such as redundant medial and deterministic I/O timing, designed for
high-performance or time-critical requirements.
D
Data Rate
The data rate is the speed at which data is transferred on the ControlNet
network (fixed at 5Mbps).
Datalinks
A Datalink is a type of pointer used by some PowerFlex drives to
transfer data to and from the controller. Datalinks allow specified
parameter value(s) to be accessed or changed without using explicit
messages. When enabled, each Datalink consumes either four bytes or
eight bytes in both the input and output image table of the controller. The
drive determines the size of Datalinks.
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