Philips V200 User Manual
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)
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.
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
Volume Alarm Limit
Setting
60.0
◆◆
0.01 for
0.00 to
9.99
0.00 to
9.99
0.1 for
10.0 to
60.0
10.0 to
60.0
0.00 - 60.0
L
Stop Code
0x03
N/A
N/A
N/A
ASCII End
Transmission
Character (ETX)
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
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
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)
Transmission
Character (STX)
Time of request
13:45
◆
N/A
N/A
N/A
24 hour clock,
hh:mm
hh:mm
◆
Date
FEB
◆23◆1997◆ N/A
N/A
N/A
12 character field,
MMM
MMM
◆DD◆YYYY◆
Current Ventilation
Type
Type
VCV
◆◆◆
N/A
VCV
◆◆◆
PCV
◆◆◆
NPPV
◆◆
N/A
The ventilation
type currently
being used by the
ventilator.
type currently
being used by the
ventilator.
Table A-4: Non-Invasive Positive Pressure Ventilation Settings Report (Sheet 1 of 3)