Siemens HT6

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03.04 Appendix
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Abbreviations
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LR
Position controller
LUD
Local User Data
MB
Megabyte
MD
Machine data
MDA
Manual Data Automatic: manual input
MC
Measuring circuit
MCP
Machine control panel
MCS
Machine coordinate system
MLFB
Machine-readable product designation
MMC
Man-Machine Communication: user interface on numerical control
systems for operator control, programming and simulation
Mode group
Mode group
MPF
Main Program File: NC parts program (main program)
MPI
Multi Port Interface
MS-
Microsoft (software manufacturer)
MSD
Main Spindle Drive
NC
Numerical Control
NCK
Numerical Control Kernel: NC kernel with block preparation,
traversing range, etc.
NCU
Numerical Control Unit: Hardware unit of the NCK
NRK
Name for the operating system of the NCK
NURBS
Non-Uniform Rational B-Spline
 Siemens AG, 2004. All rights reserved.
SINUMERIK 840D/840Di/810D Operator’s Guide Handheld Terminal 6 (BAH) - 03.04 Edition A-139