
Appendix 06/2009
Abbreviations
A-324
© Siemens AG 2009 All Rights Reserved
SINUMERIK 802D sl, Diagnostics Manual, 06/2009
I/RF Infeed/Regenerative Feedback unit
ETC ETC Key: Expansion of the softkey bar in the same menu
FDB Product database
FIFO First In First Out: Memory, which works without address specification where data are
read in the same order, in which they were stored.
FM Function module
FM-NC Function Module Numerical Control
FRA Frame block
FRAME Coordinate conversion with the components zero (work) offset, rotation, scaling, mirror-
ing
CRC Cutter radius compensation
FST Feed STop: Feed stop
GUD Global User Data : Global user data
HD Hard Disk Hard disk
HMS High-resolution Measuring System
MSD Main Spindle Drive
HW Hardware
IM Interface Module Interface module
IM S/R Interface Module (S=send/R=receive): Interface module for transmitting and receiving
data
INC Increment : Increment
ISO code Special punched tape code, number of holes per character always even
K1...K4 Channel 1 to channel 4
LAD Ladder diagram
Kv Servo gain factor
KUE Transmission ratio
LCD Liquid Crystal Display: Opto-electronic display with liquid crystals
LED Light-Emitting Diode: light-emitting-diode display
LUD Local User Data
MB Megabyte
MD machine data
MC Measuring Circuit
MDA Manual Data Automatic: Manual input
MLFB Machine-readable product designation
MMC Man-Machine Communication: User interface on numerical control systems for operator
control, programming and simulation
MPF Main Program File: NC part program (main program)
MPI Multi-Point Interface Multiple interface
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