B&R Industries Provit 5000, Руководство пользователя

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372 Provit 5000 User’s Manual
Technical Appendix • Glossary
Panel
A common term for display units (with or without keys).
Panelware
A generic term given for standard and special keypad modules offered by B&R.
PC Card
A registered trademark from Personnel Computer Memory Card International Association
(PCMCIA), which indicates the add-on card's conformity with PCMCIA specifications. A PC Card
is approximately the size of a credit card and can be inserted in a PCMCIA slot. Version
1(introduced September 1990) specifies a type I card with a depth of 3.3 milimeters, which is
intended mainly for use as external memory. PCMCIA specification version 2 (introduced
September 1991) defines a 5 mm depth for a type II card and a 10.5 mm depth for a type III card.
Devices such as modems, fax and network cards can be implemented on type II cards. Type III
cards can accommodate devices with greater space requirements, such as wireless
communication devices or rotating memory media (e.g. hard drives).
PCMCIA
An abbreviation for »Personal Computer Memory Card International Association« An
association of manufacturers and dealers, who are dedicated to the cultivation and further
development of common standards for peripheral devices based on PC cards with a slot for such
cards. PC Cards are mainly used for laptops, palmtops (and other portable computers) and
intelligent electronic devices. Version 1 of the PCMCIA standard was introduced in 1990.
PnP
An abbreviation for »Plug and Play« Specifications developed by Intel. Using Plug and Play
allows a PC to automatically configure itself, so that it can communicate with peripheral devices
(e.g. monitors, modems and printers). Users can connect a peripheral device (plug) and it is
immediately runs (play), without having to manually configure the system. A Plug and Play PC
requires a BIOS that supports Plug and Play and a respective expansion card.
POH
An abbreviation for »Power On Hours« see MTBF
POST
An abbreviation for »Power-On Self Test« A set of routines which are stored in ROM on the
computer and test different system components e.g. RAM, disk drive and the keyboard, in order
to determine that the connection is operating correctly and ready for operation. POST routines
notify the user of problems that occur. This is done using several signal tones or by displaying a
message, which frequently accompanies a diagnosis value, on the standard output or standard
error devices (generally the monitor). If POST runs successfully, control is transferred over to the
system's bootstrap loader.