Siemens SIMATIC PC 670, Equipment Manual

Page: 157 / 200

Hardware Information
Release 04/02
7-25
Panel PC 670 Computing Unit, Equipment Manual
2.5” hard disks Internal X4 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
44 pin, 2mm male connector (2.5” HD, pri-
mary),
a maximum of two drives can be connec-
ted
CD-ROM drive Internal X3 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
44 pin, 2mm male connector (CD ROM,
secondary slave with connected LS120,
otherwise secondary master),
a maximum of one drive is operable
LS240 Internal X31 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
1x41 pin (Hirose DF9-41, LS240, secon-
dary master with connected drive),
a maximum of one drive is operable
TTY sender/recei-
ver Internal X70/71 Connection for TTY transmitter/receiver
hybrid (physical interface)
PS connection for
3.5” hard disk Internal X25 Power supply for 3.5” hard disk,
4 pin, male connector
PS connection for
CPU fan Internal X29 Power supply for CPU fan,
3 pin, male connector
PS connection for
device fan Internal X28 Power supply for device fan,
2 pin, male connector
Backup battery Internal X24 Power supply for device fan,
2 pin, male connector
Interface to wiring backplane
The computing unit has a wiring backplane with one PCI slot and one shared
ISA/PCI slot. Expansion boards can be installed complying with ISA specification
(Rev. 3.1) and PCI specification (Rev. 2.0) with a maximum length of 265mm (175
mm for shared ISA/PCI modules). All PCI slots can be used as masters. Only 5V
PCI modules are operable.
The bus unit is executed as a purely passive module, i.e. there are only socket
contacts for the expansion cards and any necessary backup capacitors. The power
supply to the expansion cards is effected via the connection of the bus unit with the
basic board. The -5V voltage is not provided for in the power supply and is
produced from the -12V on the bus unit via in-phase voltage control.