Glossary - Siemens SIMATIC IPC127E Operating Instructions Manual

Glossary

AHCI mode
AHCI is a standardized method to address the SATA controller. AHCI describes a structure
in the RAM, which contains a general area for control and status, as well as a command list.
Automation system
A programmable controller (PLC) of the SIMATIC S7 system consist of a central controller,
one or several CPUs, and various I/O modules.
Backup
Duplicate of a program, data medium or database, used either for archiving purposes or for
the protection of vital and non-replaceable data against loss when the working copy is
corrupted. Certain applications automatically generate backup copies of data files, and
manage both the current and the previous versions on the hard disk.
Cache
High-speed access buffer for interim storage (buffering) of requested data.
CE marking
Communauté Européene: The CE symbol confirms the conformity of the product with all
applicable EC directives such as the EMC Directive.
Cold restart
A start sequence, starting when the computer is switched on. The system usually performs
some basic hardware checks within the cold start sequence, and then loads the operating
system from the hard disk to work memory -> boot
Configuration files
These are files containing data which define the configuration after restart. Examples of such
files are CONFIG.SYS, AUTOEXEC.BAT and the registry files .
Configuration software
The configuration software updates the device configuration when new modules are installed
. This is done either by copying the configuration files supplied with the module or by manual
configuration using the configuration utility.
SIMATIC IPC127E
Operating Instructions, 01/2019, A5E44296915-AA
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