Siemens SINUMERIK 840D Operator's Guide

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03.04 Appendix
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Abbreviations
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Ó Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operator’s Guide HMI Advanced (BAD) – 03.04 Edition A-469
MMC
Man Machine Communication: SINUMERIK operator functionality for
operation, programming and simulation. MMC has the same meaning
as HMI.
MPF
Main Program File: NC parts program
MPI
Multi Point Interface
MS
MicroSoft (software manufacturer)
MSD
Main Spindle Drive
NC
Numerical Control
NCK
Numerical Control Kernel (with block preparation, traversing range,
etc.)
NCU
Numerical Control Unit: Hardware unit of the NCK
NRK
Numeric Robotic Kernel: name of NCK operating System
NURBS
Non-Uniform Rational B-Spline
O
Output
OB
Organization Block in PLC
OEM
Original Equipment Manufacturer
OI
Operator Interface
OP
Operator Panel
OPI
Operator Panel Interface
OPT
Options
OSI
Open Systems Interconnection: standardization for computer
communication
P bus
I/O (peripherals) bus
PC
Personal Computer

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB