Siemens Sinumerik 840D Operating Turning page 151

Shortcuts and abbreviations (continuation)
MPF Main Program File
MSD Main Spindle Drive
MSTT Maschinensteuertafel
NC Numerical Control
NCK Numerical Control Kernel
NCU Numeric Control Unit
NMI Non Maskable Interrupt
OI Operator Interface
OP Operator Panel
OPI Operator Panel Interface
P-Bus Peripheral-Bus
PC Personal Computer
PCU Personal Computer Unit.
PCMCIA Personal Computer Memory Card International
Association
PG Programming Device
PLC Programmable Logic Control
PRAL Process Alarm
PS Power Supply
PTP Point to Point
P2P Point to Point
RAM Random Access Memory (read write memory)
REF Reference Point Approach Funktion
ROV Rapid Override
SBL Single Block
SK Softkey
SKP Skip Block
SW Software
SPF Sub Programm File
SYF System Files
T Tool
TC Tool Change
TLC Tool Length Compensation
TO Tool Offset
TRC Tool Radius Compensation
UFR User Frame
VGA Video Graphics Adapter
WCS Workpiece Coordinate System
WPD Work Piece Directory
ZO Zero Offset
840D/828D SINUMERIK Operate Page 9
Section 7
Notes
B515
B515