Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter - Manual (Page 163)

Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013 163
Glossary
Explicit Messaging Explicit messages are used to transfer data that does not require continuous
updates. They are typically used to configure, monitor, and diagnose devices over
the network.
Fault Action A fault action determines how the adapter and connected drive act when a
communications fault (for example, a cable is disconnected) occurs or when the
controller is switched out of run mode. The former uses a communications fault
action, and the latter uses an idle fault action.
Fault Configuration When communications are disrupted (for example, a cable is disconnected), the
adapter and its PowerFlex 520-series 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.
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.
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. The PowerFlex 22-
HIM-A3 or 22-HIM-C2S HIM can be used to configure PowerFlex 520-series
drives and their connected peripherals.
Hold Last When communication is disrupted (for example, a cable is disconnected), the
adapter and its PowerFlex 520-series drive can respond by holding last. Hold last
results in the drive receiving the last data received through the network
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.
Idle Action An idle action determines how the adapter and its PowerFlex 520-series drive act
when the controller is switched out of run mode.