NCU 7x0.2
Manual, 02/2011, 6FC5397-0AP20-0BA0
107
Appendix
A
A.1 Abbreviations
AWG American Wire Gauge
B-MPI Handheld unit with MPI connection
BERO Proximity limit switch
CAT5 Quality class (category) for shielded twisted-pair cables. Class 5 states that these cables have a
particularly low damping factor, making them suitable for 100 Mbit/s-FastEthernet networks.
CBA Component Based Automation: Component Based Automation
CNC Computerized Numerical Control Computerized numerical control
CPU Central Processing Unit Central processing unit
CRC Cyclic redundancy check: Checksummenprüfung
DIN Deutsche Industrie Norm (German Industry Standard)
DIP Dual In–Line Package: Dual in-line arrangement
DP Distributed I/O
DRAM Dynamic Random Access Memory
DRIVE-CLiQ Drive Component Link with IQ
EGB Electrostatic Sensitive Devices
EMC Electromagnetic compatibility
EN European standard
ESD Electrostatic discharge: elektrostatische Entladung
HMI Human Machine Interface: SINUMERIK operator interface for operating, programming and simulation
HSC High-Speed Cutting
HT Handheld Terminal
LED Light-emitting diode light-emitting-diode display
MAC Media Access Control
MCP Machine Control Panel
MLFB Machine-Readable Product Code
MPI Multi-Point Interface Multi-point interface
MPP Machine Push Button Panel
NCK Numerical Control Kernel: NC kernel with block preparation, traversing range, etc.
NCU Numerical control unit: NCK hardware unit
NX Numerical eXtension (axis extension module)
OP Operator Panel : Operator panel front
PCU PC Unit: Computer unit
PG Programming device
PLC Programmable Logic Control: Programmable logic control (component of the CNC controller)
PN PROFINET
RAM Random Access Memory: Program memory which can be read and written into
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