Welch Allyn Connex Vital Signs Monitor (CVSM) Calibration/Verification Module Notes - Quick Reference Guide - Manual (Page 2)

SpO2 error codes
NOTE: The Masimo SpO2 module does not provide error codes.
To find the Nellcor error code:
1. Go to the tab of the device you are working on and select the Nellcor SpO2 module.
2. Select the View log button in the user information section of the page. A .txt document opens
with the last Nellcor SpO2 error code.
Post error summary
The following table summarizes the error conditions, actions taken by the module, and actions that
the host should take upon detecting these conditions. The conditions are detected by the module in
the order listed in the table. Only one condition is detected at a time.
Error condition Host controller action to detect
error condition Device action
RAM test failure Start host side WACP application to
communicate with module
Device halts execution, no WACP
over USB communication possible
with module.
ROM test failure Request module data. Device does not execute software,
hence sending the incorrect GUID for
request for module data.
ATE test failure Request POST errors. POST failure status message with
POST_ATE_FAIL or POST_FACTORY
is reported as a response to request
for POST errors.
SpO2 module
communication failure
Request POST errors. POST failure status message with
POST_SENSOR or WRITE_CONFIG is
reported as a response to request for
POST errors.
SpO2 Masimo sensor error codes
Table 22 of MS-11 and MS-13 Board Communication Protocol [6] - see references.
Board failure codes Recover
All Replace MS-2011 board.