Siemens SINUMERIK 840DE sl Commissioning Manual page 1415

Appendix
A.1 Abbreviations
CF CompactFlash card: Memory card
CFS Cluster File System
CIFS Common Internet File System
DCK Direct Control Keys: Direct control keys
DCP Discovery and Basic Configuration Protocol
DHCP Dynamic Host Configuration Protocol: Dynamic assignment of an IP address and other configuration pa‐
rameters on a computer in a network
DNS Domain Name System: Conversion of domain names into IP addresses
EBS Emergency Boot System
EKS Electronic Key System: System to check the identity of a user (authentication system)
EUNA End User Notification Administration
HMI Human Machine Interface: Operator interface
IRT Isochronous Realtime (Ethernet)
LLDP Link Layer Discovery Protocol: multi-vendor Layer 2 Protocol defined in accordance with the IEEE-802.1AB
standard, allows information to be exchanged between devices.
MAC Media Access Control: The MAC address is a 48-bit Ethernet ID.
MCP Machine Control Panel: Machine control panel
MPI Multi-Point Interface: Multiple interface
MUI Multilanguage User Interface
NAT Network Address Translation
NCK Numerical Control Kernel: NC kernel with block preparation, travel range, etc.
NCU Numerical Control Unit: NCK hardware unit
NFS Network File Service is a network protocol.
NRT Non-Realtime (Ethernet)
NTFS New Technology File System
NTLMSSP NT LAN Manager (NTLM) Security Support Provider
NTP Network Time Protocol: Standard for synchronizing clocks in the entire network
NTPD NTP Daemon:
Utility that runs in the background and does not have to be started by the user.
PCU PC Unit: Computer unit
PDEV Physical device
PG Programming device
PLC Programmable Logic Control: Programmable logic controller
RAM Random Access Memory: Program memory which can be read and written into
RDY Ready: The system is ready to operate.
RFC Remote Function Call
SMB Server Message Block
NCU operating system
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