Siemens Sinumerik 840D sl Programming Manual page 904

Appendix
A.1 List of abbreviations
NC
NCK
NCU
NRK
IS
NURBS
ZO
OB
OEM
OP
OPI
OPT
OSI
P bus
PC
PCIN
PCMCIA
PCU
PG
PLC
POS
RAM
REF
REPOS
RISC
ROV
RPA
RPY
RTS
SBL
SD
SDB
SEA
SFB
SFC
SK
SKP
SM
SPF
PLC
904
Numerical Control: Numerical Control
Numerical Control Kernel: NC kernel with block preparation, traversing range, etc.
Numerical Control Unit: Hardware unit of the NCK
Name for the operating system of the NCK
Interface signal
Non-Uniform Rational B-Spline
Zero offset
Organization block in the PLC
Original Equipment Manufacturer
Operator Panel: Operating setup
Operator Panel Interface: Interface for connection to the operator panel
Options: Options
Open Systems Interconnection: Standard for computer communications
Peripheral Bus
Personal Computer
Name of the SW for data exchange with the control
Personal Computer Memory Card International Association: Standard for plug-in
memory cards
PC Unit: PC box (computer unit)
Programming device
Programmable Logic Control: Interface control
Positioning
Random Access Memory: Program memory that can be read and written to
Reference point approach function
Reposition function
Reduced Instruction Set Computer: Type of processor with small instruction set and
ability to process instructions at high speed
Rapid override: Input correction
R-Parameter Active: Memory area on the
NCK for R parameter numbers
Roll Pitch Yaw: Rotation type of a coordinate system
Request To Send: RTS, control signal of serial data interfaces
Single Block: Single block
Setting Data
System Data Block
Setting Data Active: Identifier (file type) for setting data
System Function Block
System Function Call
Softkey
SKiP: Skip block
Stepper Motor
Sub Routine File: Subprogram
Programmable Logic Controller
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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