Allen-Bradley 22-COMM-E FRN 1.xxx User Manual page 154

G-4 Glossary
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 in the fault configuration parameters (Parameter 20 - [Flt Cfg
Logic] and Parameter 21 - [Flt Cfg Ref]). When a fault action
parameter is set to use the fault configuration and a fault occurs, the data
from these parameters is sent as the Command Logic and/or Reference.
Flash Update
The process of updating firmware in the adapter. The adapter can be
flash updated using the X-Modem protocol and a 1203-SSS Smart
Self-powered Serial converter (version 3.xx or higher firmware), the
Allen-Bradley software tool ControlFLASH, or the built-in flash
capability of DriveExplorer (version 4.01 or higher).
G
Gateway
A gateway is 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 PowerFlex 4-Class
drive. PowerFlex 4-Class HIMs (22-HIM-xxx) can be used to configure
connected peripherals.
Hold Last
When communications are disrupted (for example, a cable is
disconnected), the adapter and PowerFlex drive can respond by holding
last. Hold last results in the drive receiving the last data received via the
Ethernet connection before the disruption. If the drive was running and
using the Reference from the adapter, it will continue to run at the same
Reference.