Siemens SIMATIC ET 200SP Operating Instructions Manual page 122

Glossary
LAN
Local Area Network: LAN refers to a local network consisting of a group of computers and
other devices which are distributed over a relatively restricted area and connected through
communication lines. The devices connected to a LAN are referred to as nodes. The purpose
of networks is the shared use of files, printers or other resources.
License key
The license key is the electronic license stamp of a license. Siemens AG provides a license key
for software that is protected by licensing laws.
Operating system
Generic term which describes all functions for controlling and monitoring user program
execution and distribution of system resources to the user programs as well as maintenance
of the operating mode in cooperation with the hardware.
Power options
The power options can be used to reduce the power consumption of the computer while still
keeping it ready for immediate use. In Windows via Start > Control Panel > Hardware and
Sound > Power Options.
Restart
The restart of the company that is already in operation using, for example, the
<Ctrl+Alt+Del> shortcut without switching off the power supply.
ROM
Read Only Memory. ROM refers to a read-only memory where each memory location can be
addressed individually. The stored programs or data are hard-coded and are preserved even
in the event of a power failure.
S.M.A.R.T
Self-Monitoring, Analysis and Reporting Technology (SMART or S.M.A.R.T.) is an industry
standard for storage media. It provides for permanent monitoring of relevant parameters and
thus early recognition of pending defects.
SATA
Serial ATA. An interface for hard disk drives and optical drives with serial data transfer.
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CPU 1515SP PC2 (F/T/TF)
Operating Instructions, 03/2023, A5E42603425-AC