Operating instructions

List of Abbreviations/Acronyms
B.1 Abbreviations
SIMATIC Panel PC 677B
246 Operating Instructions, 05/2007, A5E01035609-01
Abbreviation Term Meaning
DP Distributed I/O
DQS Deutsche Gesellschaft zur Zertifizierung
von Qualitätsmanagement mBH
DDRAM Double Data Random Access Memory Memory chip with high-speed interface
DSR Data Set Ready Ready for operation
DTR Data Terminal Ready Data terminal is ready
DVD Digital Versatile Disc Digital versatile disk
DVI Digital Visual Interface Digital display interface
ECC Error Correction Code Error correction code
ESD Components sensitive to electrostatic
charge
EIDE Enhanced Integrated Drive Electronics An enhancement of the IDE standard
EMM Expanded Memory Manager Manages memory expansions
EN European standard
EPROM / EEPROM Erasable Programmable Read-Only
Memory / Electrically Erasable
Programmable Read-Only Memory
Plug-in submodules with EPROM/EEPROM chips
ESC Escape character Control character
EWF Enhanced Write Filter
FAT 32 File Allocation Table 32-bit 32-bit file allocation table
FSB Front Side Bus
GND Ground Chassis ground
HD Hard disk Hard disk
HU Height unit
HMI Human Machine Interface User interface
HTTP Hypertext Transfer Protocol Protocol for data transfer on the Internet
Hardware Hardware
I/O Input/Output Data input/output on computers
IDE Integrated Device Electronics
IEC International Electronical Commission
IP Ingress Protection Degree of protection
IRQ Interrupt Request Interrupt request
IT Information Technology Information technology
LAN Local Area Network Computer network that is limited to a local area.
LCD Liquid Crystal Display Liquid crystal display
LVDS Low Voltage Differential Signaling
LW Disk drive
MLFB Machine-readable product designation
MPI Multipoint-capable interface for
programming devices
MTBF Mean Time Between Failures
MUI Multilanguage User Interface Language localization in Windows
NA Not Applicable