10:00   I just notice the TRH at 5 is not showing on cockpit; however, talking directly to the
            DSM shows the sensor is coming in. The fan current is low so it maybe a test in
            in cockpit that set TRH to RIP due to the low current. Since this fan current has been acting
            funny we will plan to replace the TRH housing. 

1 Comment

  1. Gordon Maclean

    In the XML for the TRH is this line:

    <variable name="Ifan" units="mA" minValue="20" maxValue="70"

    If the Ifan value is below minValue or above maxValue then the T and RH values are set to NaN.

    If power cycling seems to help bring the TRHs back, there is a check_trh.sh script in /home/daq/isfs/bin on the DSMs, that will power cycle the port if the temperature is outside of -50:50 or Ifan goes below 10.   During CABL it was run from the post_dsm.sh script on DSMs.  It runs rserial on a given port to check the data values.