Servo-i Ventilator System Introduction
Revision 02 Service Manual 2 - 9
2
PC1777 PANEL
PC1784
PC1771
PC1772
PANEL S/W
BREATHING
SW
SVX9143
PC1770
SYSTEM ID
SW
MONITORING
SW
Servo-i software structure
General
The Servo-i SW installed in the ventilator will contain
all available system functionality. The software 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-i software is divided into the following
software subsystems:
• Breathing
• Monitoring
• Panel
• System ID
Breathing
The Breathing SW 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 SW is stored on PC 1771 Control and
PC 1784 Expiratory Channel. New software can be
installed via a System SW Update. The System SW
must be re-installed if PC 1771 or PC 1784 is
replaced.
The Breathing SW is executed by microprocessors
on PC 1771 and PC 1784.
Monitoring
The Monitoring SW 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 Monitoring SW is stored on PC 1772 Monitoring.
New software can be installed via a System SW
Update. The System SW must be re-installed if
PC 1772 is replaced.
The Monitoring SW is executed by the microprocessor
on PC 1772.
Panel
The Panel SW controls all user interaction, as well as
software updating to all subsystems via the PC
Card-interface.
The Panel SW is stored on PC 1777 Panel. New
software can be installed via a System SW Update.
The System SW must be re-installed if PC 1777 is
replaced.
The Panel SW is executed by the microprocessor on
PC 1777.
System ID
The System ID SW is a configuration file, stored on
PC 1770 Main Back-Plane, that is unique for each
ventilator. The System ID SW will enable the
functions selected for this ventilator.
To change the functions of the ventilator, a new
System ID S/W can be installed via an Option
Upgrade.
When replacing PC 1770 Main Back-Plane, a spare
part that is factory programmed for the concerned
ventilator must be used.