Welch Allyn Duet CO2 Module - User Manual - Manual (Page 29)

Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies Confidential Page 29
Mode Commands
Mode commands allow the host to put the module into one of the four operating modes.
Host Command Description
for MS
for SS Enter auto run mode
To start automatic sampling and data packet transmission at default
intervals of real time CO
2
waveform and breath data. A mainstream
sensor disconnect or a sidestream water trap removal causes the
module to wait for a sensor reconnect or sidestream Water trap
insertion. This is the preferred operating mode since temporary
sensor removal and replacement is typical in normal operation.
for MS
for SS Enter measurement mode
Same as auto run mode except for mainstream sensor disconnects
and sidestream Water trap removals. Instead of waiting for a sensor
reconnect or Water trap insertion, the sensor’s activity is halted and
the module reverts to the standby mode and requires a new
or host command to restart measurement.
Enter warm standby mode
Provides a low power standby state for the module during sensor
warm up in mainstream operation since warm up time may be as long
as several minutes. Standby mode keeps the sensor warmed and
ready. Standby mode also reduces battery drain.
for MS
for SS Enter standby mode
Used when a low power standby state for the module is desirable.
This prolongs the life expectancy of the IR source, chopper motor and
heater since these components are disabled in this mode.
The module automatically reverts to a fault mode if a module or sensor fault occurs. A message is sent
via the status response by the module to the host.
Simple Commands
Simple commands instruct the module to send module data or sensor EEPROM data and to reset the
module software or a sensor error.
Host Command Description
Request module status
To confirm operating mode, fault status and module and sensor
operation.
Request software version
Request hardware version