Glossary
SIMATIC IPC677D
184 Operating Instructions, 09/2014, A5E32995420-AC
Located on the motherboard, connects the processor with the PCI or PCIe bus and the
external interfaces.
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
The COM interface is a serial V.24 interface. The interface is suitable for asynchronous data
transfer.
CompactFlash is a digital storage medium in card format and without moving parts. The CF
card contains the non-volatile memory and the controller. The interface of the CF card
corresponds with the IDE interface. CF cards can be operated without additional electronics
on PCMCIA or IDE hard disk controllers using a plug and socket adapter. There are two
design forms: CF-I (42.6 x 36.4 x 3.3 mm) and CF-II (42.8 x 36.4 x 5 mm).
These are files containing data which define the configuration after restart. Examples of such
files are CONFIG.SYS, AUTOEXEC.BAT and the registry files .
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.
Integrated hardware and software controllers that control the functions of certain internal or
peripheral devices (for example, the keyboard controller).
The configuration of a PC or programming device contains information on hardware and
device options, such as memory configuration, drive types, monitor, network address, etc.
The data are stored in a configuration file and enable the operating system to load the
correct device drivers and configure the correct device parameters. . If changes are made to
the hardware configuration, the user can change entries in the configuration file using the
SETUP program. .
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