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Appendix A
RS-232 Communications Protocol
REF 1057983 A Respironics V200 Ventilator Operator’s Manual Appendix A-21
Alarm Status Report
(ALRM)
When the ventilator receives ALRM followed by a carriage return, it will
respond by transmitting the information shown in Table A-6: “Alarm Status
Report”. The ventilator responds to the ALRM 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.
Static Compliance
19.2
◆◆
0.01 for 0.00 to
9.990.1 for 10.0 to
99.91 for 100 to
350
0.00 - 350 mL/
cmH2
O
Static Compliance
display from the
Static C & R
Screen
Static C & R Time
of Last Maneuver
11-14-01◆◆13:11
1 minute 01-01-70
0:00 to
01-19-38
3:14
N/A Static C & R Time
of Last Maneuver
display from Static
C & R Screen.15
character field, 24
hour clock: MM-
DD-YYwwHH:MM
AutoPeep 1.2
◆◆ 0.1 for -9.9 to 9.91
for -10 to -201 for
10 to 120
-20 - 120 cmH2
O
AutoPeep display
from the
Mechanics Patient
Status Screen
AutoPeep Time of
Last Maneuver
11-14-01◆◆13:11
1 minute 01-01-70
0:00 to
01-19-38
3:14
N/A AutoPeep Time of
Last Maneuver
display from
Mechanics Patient
Status Screen.15
character field, 24
hour clock: MM-
DD-YYwwHH:MM
Static C & R
Plateau End
Pressure
8.2
◆◆◆
0.2 for -20 to 99.9
1 for 100 to 130
-20.0 - 130 cmH
2
OP
plat
display from
Static C & R
Screen
Stop Code 0x03 N/A N/A N/A ASCII End
Transmission
Character (ETX)
Patient Data Report (Continued)
Description Example Resolution Range Units Comments
Table A-5: Patient Data Report (Sheet 4 of 4)