Glossary
Glossary-17
SIMATIC Rack PC IL 40 SManual
A5E00200171-01
S
SCSI Interface
Small Computer System Interface. Interface for connecting SCSI devices (hard
disk drives, CD-ROM drives).
Serial Interface
Data is transmitted one bit at a time via a serial interface (port); serial interfaces
are therefore slower than parallel interfaces.
SETUP
A program in which information about the device configuration (that is, the
configuration of the hardware on the programming device) is defined. The device
configuration of the programming device is preset with defaults. Changes must
therefore be entered in the SETUP if a memory extension, new modules, or a new
drive are added to the hardware configuration.
SIMATIC S5 Memory Submodules
Memory submodules for SIMATIC S5 which are programmed with the PG and can
be plugged into an S5 programmable logic controller.
SIMATIC Memory Cards
Memory submodules in credit-card format for SIMATIC S5 and SIMATIC S7 which
are programmed with the PG and can be plugged into an S5 or S7 programmable
logic controller.
Software
The collective term for all programs which are used on a computer. The operating
system and the user programs are part of the concept “software”.
Standby
Power saving status: for example, hard disk drive or display turned off.
Startup Disk
The bootstrap instructions coded into a computer’s ROM (read-only memory) and
executed at startup. The startup ROM routines enable a computer to check itself
and its devices (such as the keyboard and disk drives), prepare itself for operation,
and run a short program to load an operating-system loader program.
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