A.2
Abbreviations
ALM
Active Line Module
ASIC
Application Specific Integrated Circuit
AWG
American Wire Gauge
BERO
Proximity limit switch
CAT5
Quality class (category) for shielded twisted pair network cables. Class 5 states that these cables have
a particularly low damping factor, making them suitable for 100 Mbit/s-FastEthernet networks.
CE
The CE marking (Conformité Européenne, which means "compliance with EU directives") for products is
a marking according to EU law in relation to product safety.
CNC
Computerized Numerical Control
CRC
Cyclic redundancy check
cULus
Approval (see CE) for Canada and USA (UL = Underwriters Laboratories)
DIN
Deutsche Industrie Norm (German Industry Standard)
DIP
Dual In–Line Package: Dual in-line arrangement
DMC
DRIVE-CLiQ Hub Module
DP
Distributed I/O
DRAM
Dynamic Random Access Memory
DRIVE-CLiQ
Drive Component Link with IQ
EMC
Electromagnetic compatibility
EN
European standard
ESD
Electro-Static Discharge
GSM
Global System for Mobile Communications: Worldwide standard for wireless transmission of voice, data,
fax and text messages (SMS).
LEDs
Light-emitting diode
MAC
Media Access Control
MCP
Machine control panel
MLFB
Machine-Readable Product Code
MPI
Multi-Point Interface
N.C.
Not connected: Connection unassigned
NCK
Numerical Control Kernel: NC kernel with block preparation, traversing range, etc.
NV SRAM
Non-Volatile Static Random Access Memory
NX
Numerical eXtension (axis extension module)
OLP
Optical Link Plug: Fiber-optic bus connector
OP
Operator Panel: Operator panel front
PCU
PC Unit: Computer unit
PG
Programming device
PLC
Programmable Logic Control (component of the CNC controller)
PN
PROFINET
QWERTY
Keyboard assignment: American keyboard layout, the first six letters in the top row of letters, read from
left to right.
RAM
Random Access Memory: Program memory which can be read and written into
S/R
Steps per revolution: Pulses per revolution
SI
Safety Integrated
PPU
Manual, 03/2013, 6FC5397-2DP40-3BA1
Appendix
A.2 Abbreviations
225