Appendix A
RS-232 Communications Protocol
REF 1057983 A Respironics V200 Ventilator Operator’s Manual Appendix A-11
Volume Control Ventilation Settings Report (VCVS)

When the ventilator receives VCVS followed by a carriage return, it will respond

by transmitting the information shown in Table A-2: “Volume Control

Ventilation Settings Report”. The ventilator responds to the VCVS command by

returning a string with a variable length. Fields 2 through 4 define the length

of the message. The last character transmitted is a stop code indicating the

end of the message. The second field indicates the number of characters

between the start and stop codes. The third field indicates the number of

Low EPAP Alarm
Status NORMAL N/A NORMAL
ALARM◆
RESET◆
N/A
High Leak Alarm
Status NORMAL N/A NORMAL
ALARM◆
RESET◆
N/A
100% O2 Function
Status OFF◆◆◆ N/A ON◆◆◆◆
OFF◆◆◆
N/A Status of the
100% O2 LED on
the front panel
Alarm Silence Status OFF◆◆◆ N/A ON◆◆◆◆
OFF◆◆◆
N/A Status of the Alarm
Silence LED on the
front panel
Screen Lock Status OFF◆◆◆ N/A ON◆◆◆◆
OFF◆◆◆
N/A Status of the
Screen Lock LED
on the front panel
Tube Ty pe ET◆◆◆◆ N/A ET◆◆◆◆
TT◆◆◆◆
NONE◆◆
N/A Tube type as
selected in
Respiratory
Mechanics Screens
(Not used)
Tube Size 7.0◆◆◆ 0.1 for 3.5
to 9.9
1 for 10
3.5 - 10 mm Tube size as
selected in
Respiratory
Mechanics Screens
(Not used)
VCV High Minute
Volume Alarm Limit
Setting
60.0◆◆ 0.01 for
0.00 to 9.99
0.1 for 10.0
to 60.0
0.00 - 60.0 L
Static C & R Plateau
End Pressure 8.2◆◆◆ 0.1 for -20
to 99.9
1 for 100 to
130
-20.0 - 130 cmH2OP
plat display from
Static C & R
Screen
Stop Code 0x03 N/A N/A N/A ASCII End
Transmission
Character (ETX)
Ventilation Report (Continued)
Description Example Resolution Range Units Comments

Table A-1: Ventilation Report (Sheet 10 of 10)