Siemens SIMATIC IPC647D Operating Instructions Manual page 211

PROFINET
PROFINET is the name of the standard for Industrial Ethernet developed and maintained by
the PROFIBUS user organization. PROFINET unites protocols and specifications with which
Industrial Ethernet meets the requirements of industrial automation technology.
Programmable controller (PLC)
The programmable controllers (PLC) of the SIMATIC S5 system consist of a central
controller, one or more CPUs, and various other modules (e.g. I/O modules).
PXE server
A Preboot Execution Environment server is part of a network environment and can provide
software to connected computers even before they boot. This can involve operating system
installations or servicing tools, for example.
RAID
Redundant Array of Independent Disks: Data storage system which is used to save data and
the corresponding error correction codes (parity bits, for example) to at least two hard disk
volumes in order to enhance reliability and performance. The hard disk array is controlled by
management programs and a hard disk controller for error correction. The RAID system is
usually implemented in network servers.
RAL
Restricted Access Location: Installation of the device in a production facility with restricted
access, for example, a locked control cabinet.
Recovery CD
Contains the tools for configuring hard disks and the Windows operating system.
Reset
Hardware reset: Reset/restart of the PC using a button/switch.
Restart
Warm restart of a computer without switching the power off (Ctrl + Alt + Del)
Restore DVD
The Restore DVD is used to restore the system partition or the entire hard disk to factory
state if the system has crashed. The bootable DVD contains all the necessary image files.
You can also create a boot disk allowing restoration via the network.
SIMATIC IPC647D
Operating Instructions, 01/2014, A5E32996306-AA
Glossary
211