Welch Allyn Duet CO2 Module - User Manual - Manual (Page 38)

Duet CO
2
Module OEM Implementation Manual
Page 38 Confidential Welch Allyn OEM Technologies
Host Command Module Response Module Response Format
<C3A>
Request last calibration date <Dmmddyyyy> mm = month
dd = day
yyyy = year
Example:
<D06042001>
Last cal date = 6/4/2001
Configuration Command Responses
Configuration responses are data packets sent by the module to the host at programmed intervals. A
single host measurement or auto run mode command initiates unsolicited transmission of CO
2
waveform and breath data packets. The programmed interval between packets is either defined by the
host via a configuration command or the host may use the default setting.
Module Response Module Response Format
<Wxxyy>
Unsolicited CO2 waveform packet at programmed interval see below
<Zxxyyzz>
Unsolicited breath data packet at programmed interval see below
<Wxxyy>, CO2 Waveform Data
Includes 4 bytes of CO
2
waveform data that are sent at the programmed interval during measurement
and auto run modes.
<Wxxyy> where xxyy:
xxyy CO
2
waveform data mmHg × 256 4*(ASCII)
range: 0 – 99.996 mmHg (0000h – 63FFh)
Example:
CO
2
= 37.50 mmHg
{STX} “W” xx yy CCITT/CRC {ETX} waveform byte string
0x25 0x80 0x79 {STX}W258079{ETX}
02h 57h 32h 35h 38h 30h 37h 39h 03h
CO
2
= 76.65 mmHg
{STX} “W” xx yy CCITT/CRC {ETX} waveform byte string
0x4C 0xA6 0x49 {STX}W4CA649{ETX}
02h 57h 34h 43h 41h 36h 34h 39h 03h