Rockwell Automation 22-COMM-P PowerFlex Profibus Adapter User Manual
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Glossary-3
fault occurs, the data from these parameters is sent as the Logic
Command Logic and/or Reference.
Feedback
See Reference/Feedback
Flash Update
The process of updating firmware in a device. The adapter can be flash
updated using the controlFLASH tool or the X-Modem protocol and a
1203-SSS Smart Self-powered Serial converter (firmware 3.xxx or later).
G
GSD File
A file used by network configuration tools to configure the adapter. The
GSD file contains GSD modules for setting up the communication with
the adapter.
H
HIM (Human Interface Module)
A device that can be used to configure and control a drive. PowerFlex
4-Class HIMs (22-HIM-xx) can be used to configure PowerFlex 4-Class
drives and their connected peripherals.
Hold Last
When communication is 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
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.
I
I/O Data
I/O data, sometimes called “implicit messages” or “input/output,” is
time-critical data such as a Logic Command and Reference. The terms
“input” and “output” are defined from the scanner’s point of view.
Output is transmitted by the scanner and consumed by the adapter. Input
is transmitted by the adapter and consumed by the scanner.
L
Logic Command/Logic Status
The Logic Command is used to control the PowerFlex 4-Class drive (for
example, start, stop, direction). It consists of one 16-bit word of output to
the adapter from the network. The definitions of the bits in this word
depend on the drive, and are shown in
The Logic Status is used to monitor the PowerFlex 4-Class drive (for
example, operating state, motor direction). It consists of one 16-bit word