Abbreviation
Source of abbreviation
Meaning
LED
Light Emitting Diode
Light emitting diode
LUD
Local User Data
Local user data
MCP
Machine Control Panel
Machine control panel
MD
Machine Data
Machine data
MDI
Manual Data Automatic
Manual input
MCS
Machine Coordinate System
Machine coordinate system
MPF
Main Program File
Main program (NC part program)
NC
Numerical Control
Numerical control
NCK
Numerical Control Kernel
Numerical control kernel
NCU
Numerical Control Unit
Hardware unit of the NCK
WO
Workpiece Offset
Zero offset
OB
Organization Block
Organization block in the PLC
OEM
Original Equipment Manufacturer
Original equipment manufacturer
OP
Operator Panel
Operator panel
OPI
Operator Panel Interface
Interface for connection to the operator panel
PC
Personal Computer
Personal computer
PCU
Programmable Control Unit
Programmable control unit
PCMCIA
Personal Computer Memory Card International As‐
sociation
Standard for plug-in memory cards
PG
Programming device
Programming device
PLC
Programmable Logic Controller
Programmable logic controller
PPU
Panel Processing Unit
Panel-based control
QEC
Quadrant Error Compensation
Quadrant error compensation
RAM
Random Access Memory
Program memory that can be read and written to
REF POINT
"Reference-point approach" in JOG mode
REPOS
"Repositioning" in JOG mode
RPA
R parameter Active
Memory area on the NCK for R parameter numbers
SBL
Single Block
Single block
SBR
Subroutine
Subroutine (PLC)
SD
Setting Data
Setting data
SKP
Skip
Skip block
SPF
Subprogram File
Subprogram (NC)
SRAM
Static Random Access Memory
Static memory block
LEC
Leadscrew Error Compensation
Leadscrew error compensation
SW
Software
Software
TEA
Testing Data Active
Identifier for machine data
TO
Tool Offset
Tool offset
TOA
Tool Offset Active
Identifier (file type) for tool offsets
UFR
User Frame
User frame
WAB
Smooth approach and retraction
Work
Workpiece coordinate system
T
Tool
Tool
TLC
Tool Length Compensation
Tool length compensation
Appendix A
Diagnostics Manual
564
Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2