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
Request last calibration date mm = month
dd = day
yyyy = year
Example:
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
Unsolicited CO2 waveform packet at programmed interval see below
Unsolicited breath data packet at programmed interval see below
, CO2 Waveform Data
Includes 4 bytes of CO
2
waveform data that are sent at the programmed interval during measurement
and auto run modes.
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