Siemens SIMATIC IPC677D, Руководство по эксплуатации

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List of abbreviations
B.1 Abbreviations
SIMATIC IPC677D
180
Operating Instructions, 09/2014, A5E32995420-AC
Abbreviation Term Meaning
NAMUR Normenarbeitsgemeinschaft for Mess- und
Regelungstechnik in der chemischen Industrie
(standardization body for instrumentation and
control technology in the chemicals industry)
NC Not Connected Not connected
NCQ Native Command Queuing Automatic re-sorting of the file and disk access, for
increased performance
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 Windows versions (2000, XP,
7)
ODD Optical Disk Drive
OPC OLE for Process Control Standardized interface for industrial processes
OSK On Screen Keyboard Screen keyboard emulated by operating system
PATA Parallel ATA
PC Personal computer
PCI Peripheral Component Interconnect High-speed expansion bus
PCIe Peripheral Component Interconnect express High-speed serial, differential full-duplex PtP inter-
face with high data rate.
PCMCIA Personal Computer Memory Card Interna-
tional Association
PI Protective Earth Protective conductor
PEG PCI Express Graphics
PG Programming device
PIC Programmable Interrupt Controller Programmable interrupt controller
PIC-E Peripheral Component Interconnect Express
POST Power On Self Test
PXE Preboot Execution Environment Software for running new PCs without hard disk data
via the network
RAID Redundant Array of Independent Disks Redundant hard disk array
RAL Restricted Access Location Installation of device in operating facilities with re-
stricted access - for example, a locked switchgear
cabinet
RAM Random Access Memory
RI Ring Input Incoming call
ROM Read-Only Memory
RS 485 Reconciliation Sublayer 485 Bi-directional bus system designed for up to 32
nodes
RTC Real Time Clock Real-time clock
RTS Reliable Transfer Service Request to send
RxD Receive Data Data transfer signal
SATA Serial Advanced Technology Attachment
SCSI Small Computer System Interface
SDRAM Synchronous DRAM