B&R Industries Power Panel 300 User Manual page 553

Firmware
Programs stored permanently in read-only memory. Firmware is software used to operate
computer-controlled devices that generally stays in the device throughout its lifespan or over a
long period of time. Such software includes operating systems for CPUs and application
programs for industrial PCs as well as programmable logic controllers (e.g. the software in a
washing machine controller). This software is written in read-only memory (ROM, PROM,
EPROM) and cannot be easily replaced.
G
GB
Gigabyte (1 GB = 230 or 1,073,741,824 bytes)
H
Handshake
Method of synchronization for data transfer when data is sent at irregular intervals. The sender
signals that data can be sent, and the receiver signals when new data can be received.
I
IDE
An abbreviation for "Integrated Drive Electronics". A drive interface where the controller
electronics are integrated in the drive.
Interface
From the hardware point of view, an interface is the connection point between two
modules/devices/systems. The units on both sides of the interface are connected by the
interface lines so that data, addresses, and control signals can be exchanged. The term interface
includes all functional, electrical and constructive conditions [encoding, signal level, pin
assignments] that characterize the connection point between the modules, devices, or systems.
Depending on the type of data transfer, a differentiation is made between parallel [e.g.
Centronics, IEEE 488] and serial interfaces [e.g. V.24, TTY, RS232, RS422, RS485], which are
set up for different transfer speeds and transfer distances. From the point of view of software,
the term "interface" describes the transfer point between program modules using specified rules
for transferring the program data.
ISO
International Organization
standardization institutions from over 130 countries. ISO is not an acronym for the name of the
organization; it is derived from the Greek word "isos", meaning "equal" (www.iso.ch).
Power Panel 300/400 User's Manual V 2.10
for Standardization
Appendix A • Glossary
> Worldwide federation of national
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