Rockwell Automation 20-COMM-I Interbus Adapter - Manual (Page 108)

Glossary-3
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 (Parameters 10- [Flt Cfg
Logic]
through 19- [Flt Cfg D2In]). 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, Reference, and/or
Datalink(s).
Flash Update
The process of updating firmware in the adapter. 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.xx or
higher).
H HIM (Human Interface Module)
A device that can be used to configure and control a PowerFlex drive.
New HIMs (20-HIM-x) 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
Interbus 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 transmit 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.
Interbus Network
A Interbus network uses RS485 to connect devices (for example,
controllers, drives, and motor starters) and it can support a maximum of
126 devices in a daisy chain connection. Each device is assigned a
unique node address and transmits data on the network at the same data
rate.
General information about Interbus and the Interbus specification are
maintained by the Interbus Club at http://www.ibsclub.com
20COMM-UM007A-EN-P.book Page 3 Tuesday, January 22, 2002 10:52 AM