Rockwell Automation 20-COMM-M Modbus/TCP Adapter User Manual

Page 89

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Glossary

G-3

20-COMM-M Modbus/TCP Adapter User Manual

Publication 20COMM-UM014C-EN-P

E

EDS (Electronic Data Sheet) Files

Simple text files that are used by network configuration tools to describe
products so that you can easily commission them on a network. EDS files
describe a product device type and revision. EDS files for many
Allen-Bradley products can be found at

http://www.ab.com/networks/eds

.

F

Fault Action

A fault action determines how the adapter and connected drive act when a
communications fault (for example, a cable is disconnected) occurs.

Fault Configuration

When communications are disrupted (for example, a cable is disconnected),
the adapter and PowerFlex drive can respond with a user-defined fault
configuration. The user sets the data that is sent to the drive using specific
fault configuration parameters in the adapter. When a fault action parameter
is set to use the fault configuration data and a fault occurs, the data from
these parameters is sent as the Logic Command, Reference, and/or
Datalink(s).

Flash Update

The process of updating firmware in a device. The adapter can be flash
updated using various Allen-Bradley software tools. Refer to

Flash

Updating the Adapter on page 3-13

for more information.

G

Gateway

A device on a network that connects an individual network to a system of
networks. When a node needs to communicate with a node on another
network, a gateway transfers the data between the two networks. You need
to configure the address for the gateway device in the adapter if you want
the adapter to communicate with devices that are not on its network.

H

Hardware Address

Each Ethernet device has a unique hardware address (sometimes called a
MAC address) that is 48 bits. The address appears as six digits separated by
colons (for example, xx:xx:xx:xx:xx:xx). Each digit has a value between 0
and 255 (0x00 and 0xFF). This address is assigned in the hardware and
cannot be changed. It is required to identify the device if you are using a
BOOTP utility.

HIM (Human Interface Module)

A device that can be used to configure and control a drive. PowerFlex
7-Class HIMs (20-HIM-xxx) can be used to configure PowerFlex 7-Class
drives and their connected peripherals.

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