Siemens SIMATIC INDUSTRIAL PC PCIL43 - Manual (Page 92)

Abbreviations
C.1 Abbreviations
SIMATIC Rack PC IL 43
C-4
Operating Instructions, Edition 09/2005, A5E00432875-01
Abbreviation Term Definition
HW Hardware
I/O Input/Output Data input/output on computers
IDE Integrated Device Electronics An interface for hard disk drives in which the
controller electronics are located on the drive
itself. This saves an extra adapter board.
IEC International Electronical Commission
IGBT Insulated Gate Bipolar Transistor Compact chip featuring short switching cycles
and high current-carrying capacity.
IP Ingress Protection Degree of protection
IR Infrared Infrared
IRDA Infrared Data Association Standard for data transfer via IR module
IRQ Interrupt Request Interrupt request
ISA Industry Standard Architecture Bus for expansion modules. PC bus system
introduced by IBM in the year 1981; controls data
flow between the processor and the
interfaces/module cards.
IT Information Technology Information technology
LAN Local Area Network Computer network that is limited to a local area.
LCD Liquid Crystal Display Liquid crystal display
LEDs Light Emitting Diode LEDs
LPT Line Printer Printer port
LVDS Low Voltage Differential Signaling
LW Disk drive
MAC Media access control Media access control
MC Memory Card Memory card in credit card format
MLFB Machine-readable product designation
MMC Micro Memory Card Memory card with the format 32 x 24.5 mm
MPI Multipoint-capable interface for
programming devices
Programming interface of SIMATIC S7/M7.
Allows central access to programmable modules,
text-based displays and OPs. The nodes can
intercommunicate.
MS-DOS Microsoft Disc Operating System Standard PC operating system, a single-user
system
MTBF Mean Time Between Failures
MUI Multilanguage User Interface Language localization in Windows
NA Not Applicable
NAMUR Normenarbeitsgemeinschaft für Mess- und
Regelungstechnik in der chemischen
Industrie
NC Not Connected Not connected
NEMA National Electrical Manufacturers
Association
Syndicate of manufacturers of electrical
components in the USA
NMI Non Maskable Interrupt Interrupt the processor can not reject
NTFS New Techniques File System Secure file system for certain versions of
Windows (NT, 2000, XP)
OPC OLE for Process Control Standardized interface for industrial processes