Glossary
Release 04/02
Glossary-3
Panel PC 670 Computing Unit, Equipment Manual
Interrupt
Discontinuation in the processor of a programmable controller by an interrupt
event.
IRQ
Interrupt request.
ISA
Industrial Standard Architecture (bus for expansion board)
K
Keyboard port
PS/2 keyboard connector Keyboards with an integrated trackball can be
connected.
L
LPT 1 port
The LPT 1 port (Centronics interface) is a parallel interface which can be used for
attaching a printer.
LS 120 drive
The LS 120 drive is compatible with the familiar 3.5” floppy disk drive. The LS 120
drive supports both standard floppy disks (1.44 MB) and superdisks with a capacity
of up to 120 MB.
M
Main memory
Main memory is the whole RAM on a SIMATIC PC.
Motherboard
The motherboard is the heart of SIMATIC PCs. Data are processed and saved
from here, and interfaces and device peripherals are controlled and managed.
Mouse port
PS/2 mouse connector.
Summary of Contents for SIMATIC PC 670
Page 4: ...For your notes ...
Page 12: ...Contents Release 04 02 xii Panel PC 670 Computing Unit Equipment Manual ...
Page 132: ...Fault Diagnosis Release 04 02 6 12 Panel PC 670 Computing Unit Equipment Manual ...
Page 176: ...Distributed configuration Release 04 02 8 6 Panel PC 670 Computing Unit Equipment Manual ...
Page 194: ...Glossary Release 04 02 Glossary 6 Panel PC 670 Computing Unit Equipment Manual ...
Page 200: ...Index Release 04 02 Index 6 Panel PC 670 Computing Unit Equipment Manual ...