Printed Circuit Boards; Memory Chips On Cpu And Memory Boards - ABB SRIO 500M User Manual And Technical Description

Printed circuit
boards
Memory chips on
CPU and memory
boards
8
In addition to the boards mentioned in the fig-
ure below the SRIO 500M unit includes a
Communication board
Power supply module
27C010 EPROM "E"
27C010 EPROM "C"
256kbit RAM
256kbit RAM
256kbit RAM
Memory chips on the CPU board
256kbit EEROM
28000H-(conf)
27C010 EPROM "8"
80000H
Memory chips on the memory board
mother board, a connection board and a LED
board.
Memory board
CPU board
address E0000H
address C0000H
address 00000H
address 08000H
address 10000H
256kbit RAM
18000H
256kbit RAM+clock
20000H-(event buff.)
27C010 EPROM "A"
A0000H
I/O module, two boards