List of abbreviations
B.1 Abbreviations
SIMATIC HMI IPC677C
270 Operating Instructions, 04/2013, A5E02722710-04
Abbreviation Term Meaning
VDE Verein deutscher Elektrotechniker (Union
of German Electrical Engineers)
VGA Video Graphics Array Video adapter which meets industrial standard
VRM Voltage Regulator Module
VT Virtualization Technology Intel technology with which a virtually closed
environment can be made available.
VT-D Virtualization Technology for Directed I/O Enables the direct assignment of a device (e.g.
network adapter) to a virtual device.
W2k Windows 2000
WAN Wide Area Network
WAV Wave Length Encoding Loss-free file format for audio data.
WD Watchdog Program monitoring with error detection and
alarming.
WLAN Wireless LAN LWireless local area network
WoL Wake on Local Area Network
WWW World Wide Web
XD Execute Disable Capability Hardware implementation
XGA Extended Graphics Array Graphic standard, maximum resolution 1024x768
pixels.
ZMM Zero Maintenance Cache Protection
Module
Maintenance-free cache unit for saving cache
contents
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