Appendix A

RS-232 Communications Protocol

Non-Invasive Positive Pressure Ventilation Settings Report (Continued)

Description

Example

Resolution

Range

Units

Comments

NPPV High Leak

60◆◆◆◆

1

1 - 60

LPM

 

Alarm Limit

 

 

 

 

 

 

 

 

 

 

 

Stop Code

0x03

N/A

N/A

N/A

ASCII End

 

 

 

 

 

Transmission

 

 

 

 

 

Character (ETX)

 

 

 

 

 

 

Table A-4: Non-Invasive Positive Pressure Ventilation Settings Report (Sheet 3 of 3)

Patient Data Report (PTDT)

When the ventilator receives PTDT followed by a carriage return, it will respond by transmitting the information shown in Table A-5: “Patient Data Report”. The ventilator responds to the PTDT 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.

Patient Data Report

Description

Example

Resolution

Range

Units

Comments

 

 

 

 

 

 

Command Name

PTDT

N/A

N/A

N/A

 

 

 

 

 

 

 

Number of

275

N/A

N/A

N/A

3 character field

characters between

 

 

 

 

 

the start and stop

 

 

 

 

 

codes

 

 

 

 

 

 

 

 

 

 

 

Number of fields

32

N/A

N/A

N/A

2 character field

between the start

 

 

 

 

 

and stop codes

 

 

 

 

 

 

 

 

 

 

 

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◆

 

 

 

 

 

 

Measured Peak

24.1◆◆

0.1 for -20.0 to 99.9

-20.0 - 130

cmH2O

The PIP value from

Inspiratory

 

1 for 100 to 130

 

(hPa)

the Patient Data

Pressure

 

 

 

 

screen.

 

 

 

 

 

 

Measured Mean

5.6◆◆◆

0.1 for -20.0 to 99.9

-20.0 -120

cmH2O

The MAP value

Airway Pressure

 

1 for 100 to 120

 

(hPa)

from the Patient

 

 

 

 

 

Data screen.

 

 

 

 

 

 

Table A-5: Patient Data Report (Sheet 1 of 4)

Appendix A-18

Respironics V200 Ventilator Operator’s Manual

REF 1057983 A

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Page 304
Image 304
Philips V200 manual Patient Data Report Ptdt, Appendix A-18
Page 303 Page 305

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