Detailed descriptions
16.1 Motherboard
SIMATIC Rack PC 840 V2
16-2 Operating Instructions, Edition 05/2006, A5E00248055-04
16.1.2 Technical features of the motherboard
Component / port Description Characteristics
Chipset Single chipset VIA P4N266A (VT8703A and
VT8235)
BIOS Update by means of software Phoenix NuBIOS V4, modified
by Siemens
CPU Pentium 4/ Celeron (design FC PGA478) - Upgradeable
- Multimedia support
- On-board L2 cache
128 k / 256 k
Memory 3 DIMM module slots, max. 1 GB/DIMM - Data length = 64 bit
- 3.3 V
- SDRAM DDR to PC2100
specification
- up to 512 MB chip size on
the modules
- 66/100/133 MHz bus clock
3
- 128 MB to 2 GB/DIMM
variable
Graphics Integrated in chipset - Compatible with S3
Pro Savage
8-32 MB shared memory
- CRT: up to 65535 colors
Hard disk drive
4
[Primary EIDE port]
As master or slave on ATA 33/66/100 mode - UDMA capable
DVD ROM
DVD-ROM/CD-RW
Master on secondary EIDE port - DMA capable
Floppy
4
FD- drive port - 1.44 MB
Keyboard PS/2 keyboard port - Standard
Mouse PS/2 mouse port - Standard
Serial COM1/25-pin
COM2/9-pin
- V.24
Parallel Standard, bi-directional, EPP and ECP
mode
- 25-pin subminiature connector
PROFIBUS/MPI
2
Communication port SIMATIC S7 - Potential isolated
1
(CP5611-compatible)
- 12 Mbps
USB 2.0 Universal Serial Bus - three high-current (500 mA)
USB 2.0 ports
Ethernet 10BaseT/100 Base-TX (VIA VT8235 +
VT6103, VIA Rhine-Family)
- 10/100 Mbps, potentially
isolated
1
1
Electrically isolated within the safety extra-low voltage circuit (SELV)
2
Optional product feature
3
Depends on the CPU type
4
Depends on the selected device configuration