Siemens Servo i, Service Manual, Page: 15 / 70

E382 E407E 061 01 01 02 Siemens-Elema AB
Servo … Introduction
2 - 7
2
General
The Servo … software installed in the ventilator will
contain all available system functionality. The soft-
ware is separated into different subsystems and
stored on some of the PC boards. The separation of
the software is handled by the installation program.
The Servo
… software is divided into the following
software subsystems:
• Breathing
• Monitor
• Panel
• System ID
Breathing
The Breathing S/W controls the delivery of gases to
the patient. This subsystem is responsible for the
breathing system, that is:
• Ventilation control and regulation
• Inspiratory channel
• Expiratory channel
• Nebulizer control (software option)
The Breathing S/W is stored on PC 1771 C
ONTROL
and
PC 1784 E
XPIRATORY
C
HANNEL
. New software can be
installed via a System software update. The system
software must be re-installed if PC 1771 or PC 1784
is replaced.
The Breathing S/W is executed by microprocessors
on PC 1771 and PC 1784.
Monitor
The Monitor S/W controls all monitoring and alarm
functions in the system, including trends of measured
values. Events, such as alarms and change of settings
will also be logged.
The Monitor S/W is stored on PC 1772 M
ONITORING
.
New software can be installed via a System software
update. The system software must be re-installed if
PC 1772 is replaced.
The Monitor S/W is executed by the microprocessor
on PC 1772.
Panel
The Panel S/W controls all user interaction, as well as
software updating to all subsystems via the PC Card-
interface.
The Panel S/W is stored on PC 1777 P
ANEL
. New
software can be installed via a System software
update. The system software must be re-installed if
PC 1777 is replaced.
The Panel S/W is executed by the microprocessor on
PC 1777.
System ID
A configuration file, the System ID S/W that is unique
for each ventilator, will enable the functions selected
for this ventilator. The System ID S/W will be
upgraded if the configuration of the ventilator is
changed.
The System ID S/W is stored on PC 1770 M
AIN
B
ACK
-
P
LANE
. New System ID S/W can be installed via an
Option upgrade.
PC1777 PANEL
PC1784
PC1771
PC1772
PANEL S/W
MONITOR S/W
BREATHING
S/W
SVX9143X
PC1770
SYSTEM ID
S/W
Servo … software structure