Rockwell Automation 20-COMM-B BACnet MS/TP Adapter - Manual (Page 65)

Glossary-3
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 and Reference.
Flash Update
The process of updating firmware in a device. The adapter can be flash
updated using the Allen-Bradley software tool ControlFLASH, the
built-in flash capability of DriveExplorer (version 4.01 or higher), or
when the adapter is installed in a DPI External Comms Kit, the
X-Modem protocol and a 1203-SSS converter (version 3.xx or higher
firmware).
H
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 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,”
transmit time-critical data such as a Logic Command and Reference. The
terms “input” and “output” are defined from the controller’s point of
view. Output is produced by the controller and consumed by the adapter.
Input is produced by the adapter and consumed by the controller.
L
Logic Command/Logic Status
The Logic Command is used to control the PowerFlex 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.
The Logic Status is used to monitor the PowerFlex drive (for example,
operating state, motor direction). It consists of one 16-bit word of input