Software Loading; Parameter Modules; Figure 5 Software Loading - Datex-Ohmeda AS/3 Compact Monitor Technical Reference Manual

Datex-Ohmeda AS/3 Compact Monitor, CS/3 Compact Monitor

2.5 Software loading

The Software Cartridge attached to the B-CPU2/3 board contains the program for the CPU board
as well as for some other boards attached to the CPU bus. When the system is turned on, all
processors load their part of the software from the cartridge and after that start to execute their
program.
The CPU Board, B-CMCPU4 contains no external software cartridge. The softwares are always
loaded on the B-CMCPU4 boards already at the factory. For service procedures B-CMCPU4 boards
has a PC card drive, through which the software is loaded permanently on the board from the
software card.
Figure 5

2.6 Parameter modules

The detailed structure of the parameter modules depends on the specific needs for each individual
parameter. Some common parts can be found inside the modules, however. The electronics inside
the module is usually divided into isolated (floating) and non-isolated sections. Typically the non-
isolated part consists only buffers needed to interface the module to module bus, the rest of the
electronics can be found from the isolated side. This includes the microcontroller together with
memory components, the front end analog electronics (amplifiers, etc.) and peripheral drivers to
control LEDs, sensors, valves and pumps.
12
Document No. 896 623
UPI OR UPINET
CPU
Board
Board
Program
Memory
Software loading
w/ B-CPU2/3 or
Software
Cartridge
Display
Controller
Board
Program
Memory
CPU BUS
w/ B-CMCPU4
Software
Card
Program
Memory