List of abbreviations
D.1 Abbreviations
SIMATIC IPC677E
Operating Instructions, 04/2019, A5E45117996-AA
153
Redundant Array of Independent Disks
Redundant hard disk array
ROM Read-Only Memory
RS 485 Reconciliation Sublayer 485 Bi-directional bus system designed for up to 32
Serial Advanced Technology Attachment
SMART Self Monitoring Analysis and Reporting
Hard disk error diagnostics program
Simple Network Management Protocol
UL Underwriters Laboratories Inc. US organization for tests and certifications ac-
cording to own or binational standards (with CSA
Positive supply voltage of integrated circuits
VDE Verein deutscher Elektrotechniker (Union
of German Electrical Engineers)
Video adapter which meets industrial standard
VT-D Virtualization Technology for Directed I/O Enables the direct assignment of a device (e.g.
network adapter) to a virtual device.
WD Watchdog Program monitoring with error detection and
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