Siemens SIMATIC Field PG P4, Руководство пользователя

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Glossary
Glossary-6
SIMATIC Field PG P4 Manual
A5E00180080-04
Ethernet
Local network (bus structure) for text and data communication with a transfer rate
of 10 Mbaud.
Memory extensions can be installed in the programming device to increase the
width of the memory.
F
A complete, named collection of information, such as a program, a set of data
used by a program, or a user-created document. A file is the basic unit of storage
that enables a computer to distinguish one set of information from another.
Formatting divides the memory area on a magnetic data medium into tracks and
sectors. Formatting deletes all the data on a data medium. Every data medium
must be formatted before it is used for the first time.
Function keys can be divided into two different types; the normal function keys
which are assigned a particular function of the computer (for example, delete key),
and programmable function keys (softkeys).
Extended Memory
File
Formatting
Function Keys