Siemens SIMATIC IPC1047 Operating Instructions Manual page 132

Glossary
Troubleshooting
Error cause, cause analysis, error correction
Trusted Execution Technology
Hardware implementation that allows secured execution of programs and applications. It is
only effective when all relevant system components, such as processors, operating systems
and applications are supported.
Wake on LAN
The Wake on Local area network (WOL) function allows the PC to be started via the LAN
interface.
Warm restart
The restart of a computer after a program was aborted. The operating system is loaded and
restarted again. The CTRL+ ALT+ DEL hotkey can be used to initiate a warm restart.
WLAN
Wireless LAN is a local network that transmits data via radio waves, infrared light or other
wireless technology. Wireless LAN is mainly used for mobile computer applications in office
or factory environments.
ZMM
Zero Maintenance Cache Protection Module is a functional unit of the SAS Raid controller
that stores data in the cache of the controller in the case of a voltage failure. This functional
unit is maintenance-free.
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Operating Instructions, 07/2019, A5E45118479-AB
SIMATIC IPC1047