Rockwell Automation 1203-SSS Smart Self-powered Serial Converter - Manual (Page 47)

Glossary-3
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
such as the serial converter.
Hold Last
When communications are disrupted (e.g., serial cable is disconnected),
the converter and product can respond by holding last state. Hold last
state results in the product receiving the last data received via the DF1
connection before the disruption. If the product was in RUN mode and
using the Reference from the converter, it will continue to run at the
same Reference.
N Non-Volatile Storage (NVS)
NVS is the permanent memory of a device. Devices such as the
converter store parameters and other information in NVS so that they are
not lost when the device loses power. NVS is sometimes called
“EEPROM.”
P PCCC (Programmable Controller Communications Command)
PCCC is the protocol used by some controllers to communicate with
devices on a network. Some software products (for example,
DriveExplorer and DriveTools 2000) also use PCCC to communicate.
Ping
A ping is a message that is sent by a DPI product to its peripheral
devices. They use the ping to gather data about the product, including
whether it can receive messages and whether they can log in for control.
S SCANport
A peripheral communications interface for various Allen-Bradley drives
and power products.
SCANport Peripheral Device
A device that provides an interface between SCANport and a network or
user. Peripheral devices are also referred to as “adapters” and “modules.”
The serial converter and HIM are examples of SCANport peripherals.