Glossary

Pixel

PixElement (picture point). The pixel represents the smallest element that can be reproduced on-screen or on a printer.

PROFIBUS / MPI

Process Field Bus (standard bus system for process applications)

RAM

The RAM is the total a read/write memory in a PG/PC.

Recovery CD

Contains the tools for setting up the hard disks and the Windows operating system.

Remove module bracket

The module bracket is used to fasten modules and ensure safe contact and transport. Shocks and vibrations especially affect large, heavy modules. It is therefore recommended to use the module bracket for this type of module. There are also short, compact and light modules on the market. The module bracket was not designed for these modules because the standard fastening is sufficient for them.

Reset

Hardware Reset: Reset/restart of the PC using a button/switch.

Restart

Warm start of a computer in operate state without switching off the power supply (Ctrl + Alt + Del).

Restore CD

The Restore CD is used to restore the system partition or the entire hard disk to factory state if the system has crashed. The bootable CD contains all the necessary image files. You can also create a boot disk allowing restoration via the network.

ROM

Read-Only Memory ROM is read-only memory in which every memory location can be addressed individually. They contain factory set programs and data that are not lost in the event of a power failure.

SCSI port

Small Computer System Interface Interface for connecting SCSI devices (e.g. hard disk or CD–ROM drives)

SIMATIC Rack PC IL 43

Glossary-7

Operating Instructions, Edition 09/2005, A5E00432875-01

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Siemens PCIL43 manual Pixel, Remove module bracket, Reset, Restart, Restore CD, Scsi port