Philips V200 Manuel D’Utilisation

Page de 328
Appendix A
Appendix A-16
 
Respironics V200 Ventilator Operator’s Manual
REF 1057983 A
RS-232 Communications Protocol
Non-Invasive Positive 
Pressure Ventilation 
Settings Report 
(NPVS)
When the ventilator receives NPVS followed by a carriage return, it will respond 
by transmitting the information shown in Table A-4: “Non-Invasive Positive 
Pressure Ventilation Settings Report”. The ventilator responds to the NPVS 
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 fields between the start and stop codes. The fourth field is the start 
code, 0x02. The last field in the string is the stop code, 0x03.
PCV 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
Stop Code
0x03
N/A
N/A
N/A
ASCII End 
Transmission 
Character (ETX)
Pressure Control Ventilation Settings Report (Continued)
Description
Example
Resolution Range
Units
Comments
Table A-3: Pressure Control Ventilation Settings Report (Sheet 3 of 3)
Non-Invasive Positive Pressure Ventilation Settings Report
Description
Example
Resolution Range
Units
Comments
Command Name
NPVS
N/A
N/A
N/A
Number of characters 
between the start and 
stop codes
168
N/A
N/A
N/A
3 character field
Number of fields 
between the start and 
stop codes
23
N/A
N/A
N/A
2 character field
Start Code
0x02
N/A
N/A
N/A
ASCII Start 
Transmission 
Character (STX)
Time of request
13:45
N/A
N/A
N/A
24 hour clock, 
hh:mm
Date
FEB
◆23◆1997◆ N/A
N/A
N/A
12 character field,
MMM
◆DD◆YYYY◆
Current Ventilation 
Type
VCV
◆◆◆
N/A
VCV
◆◆◆
PCV
◆◆◆
NPPV
◆◆
N/A
The ventilation 
type currently 
being used by the 
ventilator.
Table A-4: Non-Invasive Positive Pressure Ventilation Settings Report (Sheet 1 of 3)