Read FSW_PSW.TRC trace file from CIC module By NCS Expert

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Estimated reading time: 2 min

to read the FSW_PSW.TRC and 
NETTODAT.TRC trace files from modules with NCS

Despite some people’s claims of how dangerous NCS Expert is, reading trace
files from a module is perfectly safe as long as you keep your head at the
NCS Expert’s default setting is to code,which is definitely not wanted (at
this point), but once the job type is changed to reading the application is

Please note that NCS Expert uses FSW_PSW.TRC as a temporary file for other
purposes as well. In other words; most of the time the FSW_PSW.TRC trace file
does not contain valid traces!
Therefore it is important to follow the steps below carefully to end up
with a proper trace file.

/Flashing/Progrmming software

  • Launch NCS Expert. At this moment no profile is loaded, so the
    screen is quite empty.
  •     From the “File” menu,
    choose “Load Profil”.

  • In the “Choose profile” dialog box, select “NCS
    Dummy profile” and click “OK”. Nothing much happens, but
    you’ll notice some of the buttons on the bottom now have
  •     Click the “VIN/ZCS/FA”
    button (F1). The button labels change once again.
        Click the “ZCS/FA f.
    ECU” button (F3).

  • In the “Choose CHASSIS” dialog box, select your chassis
    and click “OK”.
  • In the “Choose ECU” dialog box, select one of the
    presented modules (for example “CAS”, “EWS” or
    “EKM”) and click “OK”.
  • After a short moment, the top groupbox should now show
    information regarding your car.
  •     Click the “Back” button
    (F6). The middle groupbox now shows the available modules and default job
    name. Depending on the used profile the default job is
    “SG_CODIEREN” (coding) which we definitely don’t want, so pay
    attention to what buttons you press right now!
        Click the “Process ECU”
    button (F4).

  • In the “Choose ECU” dialog box, select the desired
    module and click “OK”. If you want to read all modules, you’ll have
    to work module by module.
  •     If “JOBNAME” in the
    middle groupbox already reads “CODIERDATEN_LESEN”, skip the
    following steps and jump to 16.
        Click the “Change job”
    button (F2).

  • In the “Choose job” dialog box, select
    “CODIERDATEN_LESEN” and click “OK”. The default job
    action is now reading instead of coding. Note that NCS Expert will still say
    “get coded” in the middle groupbox and during the read operation it
    says it’s coding but it will not. “CODIERDATEN_LESEN” is a safe
    read-only operation.
  • Confirm “JOBNAME” in the middle groupbox says
  •     Click the “Execute job”
    button (F3). The process takes only seconds. As said, NCS Expert may indicate
    it’s coding but it’s actually only reading.

  • After the job completed, write down the  *.C?? module description file name
    displayed right below “JOBNAME = CODIERDATEN_LESEN” in the middle
    groupbox (for example  EKM.C25 for the
    E31 body electronics module). The 
    *.C?? file is the module name that will be used in NCS Dummy. It is
    important to do this after reading as the module description file shown
    before reading is the one NCS Expert expects and not necessarily the one that
    is actually present in the vehicle! Steps 12 to 16 can be performed in a
    single step by clicking the “Read ECU” (F4) button instead but that
    always opens an annoying nettodata window Newer versions of the “NCS
    Dummy profile” default to job “CODIERDATEN_LESEN” making steps
    12 to 16 redundant.
  • Head over to the 
    C:NCSEXPERWORK folder and look for FSW/PSW trace file  FSW_PSW.TRC and nettodata trace file  NETTODAT.TRC . Do not perform any other
    actions in NCS Expert until the trace files are processed with NCS Dummy or
    saved to another location because NCS Expert uses  FSW_PSW.TRC as temporary file for other
    actions and may overwrite the traces you just generated.
  • If you rename the trace files using file namestructure  CHASSIS-MODULE[-optionaltext].TRC , for
    example E31-EKM.C25-FSW_PSW.TRC and E31-EKM.C25-NETTODAT.TRC,NCS Dummy will
    automatically set chassis and module when loading the trace files.

    It is strongly recommended to keep a backup of the original unmodified
    trace files (before coding changes) for future reference.

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