DAS - User Guide

MEGGITT S.A.

FRIBOURG / SWITZERLAND

Subject DAS USER GUIDE

Doc. No. N/A

Item DATA ACQUISITION SOFTWARE Type : DAS PNR : 259-102-000-xxx

Application CMC-116 for EMBRAER PNR : 251-116-013-0SS

Prepared by : Approved by : Released by :

Rev Date Engineering Engineering Section Leader

Project Manager

01 27.07.11 D.SCHERER J-C. COULET A. JOVER

Distribution Complete document : Customer : EMBRAER CAGE CODE

Production Engineering, Project Team Leader S3960 PAGE 1

Title page only : Configuration Management OF 51 PAGES

EXPORT CONTROL Information contained in this document may be subject to Export Control Regulations of the European Union, USA or other countries. Each recipient of this document is responsible for ensuring that transfer or use of any information contained in this document complies with all relevant Export Control Regulations. ECN N/A. PROPRIETARY INFORMATION This document and its contents are CONFIDENTIAL and are protected by trade secret, copyright, and other applicable laws. It is to be used only as authorised by Meggitt SA. Unauthorised use is illegal.

DAS Application User Guide Rev 01

MEGGITT SA FRIBOURG / SWITZERLAND

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REVISION RECORD SHEET

REV DATE DESCRIPTION PM N

00 19.04.07 Update for DAS version 021 Add front page and revision record sheet 6.X : update for the new DAS version

06419

01 27.07.11 Update for DAS version 25.0 Updated chapter 2:

- Removed reference to Windows 95 / 98, NT, ME / 2000; they are not supported anymore.

- Added USB/RS-232 adapter installation notes. Update Front Page



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TABLE OF CONTENTS

1 ABBREVIATIONS AND DEFINITIONS ................................................................................................................. 61.1 ABBREVIATIONS ........................................................................................................................................................ 62 INSTALLING THE DAS PROGRAM ...................................................................................................................... 72.1 DAS PROGRAM INSTALLATION ................................................................................................................................. 72.2 USB/RS-232 ADAPTER INSTALLATION PROCEDURE............................................................................................... 11

2.2.1 USB/RS-232 Adapter Installation ................................................................................................................. 112.2.2 DAS Installation Procedure (Win XP/Win 7) ................................................................................................ 112.2.3 DAS Installation Procedure (Vista) .............................................................................................................. 11

3 GENERAL ................................................................................................................................................................. 143.1 OVERVIEW .............................................................................................................................................................. 143.2 FUNCTIONALITY ...................................................................................................................................................... 14

3.2.1 Startup sequence ........................................................................................................................................... 154 RUNNING THE DAS PROGRAM .......................................................................................................................... 165 USER INTERFACE .................................................................................................................................................. 175.1 MENUS .................................................................................................................................................................... 17

5.1.1 Main Menu .................................................................................................................................................... 185.1.2 Download Menu ............................................................................................................................................ 185.1.3 Preview Menu ............................................................................................................................................... 195.1.4 Print Menu .................................................................................................................................................... 205.1.5 Clear Menu ................................................................................................................................................... 215.1.6 Tools Menu ................................................................................................................................................... 225.1.7 Help Menu .................................................................................................................................................... 235.1.8 Exit Menu ...................................................................................................................................................... 23

5.2 VIEWS ..................................................................................................................................................................... 245.2.1 Viewing CMC Maintenance and Exceedance Messages ............................................................................... 245.2.2 Viewing CMC Trend Data ............................................................................................................................ 255.2.3 Viewing CMC Trend Dig Data ..................................................................................................................... 265.2.4 Viewing CMC Exceedance data .................................................................................................................... 275.2.5 Viewing CMC FLS data ................................................................................................................................ 285.2.6 Viewing CMC FLS Dig Data ........................................................................................................................ 295.2.7 Viewing CMC FADEC SNAPSHOT Data .................................................................................................... 305.2.8 Viewing FADEC Data Recorder ................................................................................................................... 315.2.9 Viewing FADEC Data recorder error data .................................................................................................. 325.2.10 Viewing FADEC Realtime Analog Labels .................................................................................................... 335.2.11 Viewing FADEC Realtime Discrete Labels .................................................................................................. 355.2.12 Viewing FADEC Labels data ........................................................................................................................ 37

5.3 DIALOGS ................................................................................................................................................................. 385.3.1 DAS Selection Dialog ................................................................................................................................... 385.3.2 Memory Status Area Dialog .......................................................................................................................... 405.3.3 Clear Memory Areas Dialog ......................................................................................................................... 415.3.4 Directory Selection Type Dialog................................................................................................................... 425.3.5 Download Dialog .......................................................................................................................................... 435.3.6 FADEC - Label Type Dialog ........................................................................................................................ 445.3.7 FADEC Data Recorder Dialog ..................................................................................................................... 455.3.8 FADEC Labels Select Dialog ....................................................................................................................... 46



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6 FILES .......................................................................................................................................................................... 476.1 DAS DIRECTORY STRUCTURE ................................................................................................................................ 47

6.1.1 Aircraft Contents ........................................................................................................................................... 476.1.2 Doc Contents ................................................................................................................................................ 476.1.3 Lbs Contents ................................................................................................................................................. 476.1.4 Ini File Contents ........................................................................................................................................... 47

6.2 CREATED FILES ....................................................................................................................................................... 487 CMC DATA ............................................................................................................................................................... 497.1 EXCEEENCE DATA ................................................................................................................................................... 497.2 TREND DATA .......................................................................................................................................................... 507.3 MAINTENANCE DATA .............................................................................................................................................. 507.4 FLS DATA ............................................................................................................................................................... 507.5 FADEC SNAPSHOT DATA ....................................................................................................................................... 517.6 REALTIME ARINC 429 DATA ................................................................................................................................. 517.7 DIG CODES ............................................................................................................................................................. 51



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1 Abbreviations and Definitions

1.1 Abbreviations

ARINC 429 A communication protocol, commonly used on aircraft

CMC Central Maintenance Computer

COM1 Communication port 1 for serial interface communication

DAS Data Acquisition Software

EXC Exceedance

FADEC Hardware for collecting and transmitting all engine data

FDSN FADEC Fault Word Snapshot

FLS Flight Leg Summary

INI Initialization file used for storing configuration data and loaded at program start

MSG Maintenance Messages

PC Personal Computer

PNR Part Number

RS232 Serial Communications Bus/Protocol

TRN Trend



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2 Installing the DAS program

2.1 DAS Program Installation

The DAS software has an automatic install procedure.

Windows Version Setup file to execute Windows XP, Vista, 7 DAS-xx.x-setup.exe

Note: xx.x is the version of the DAS (in the following example xx.x = 25.0). Step 1: To start the install procedure, execute the setup file from the table above. The following window will be displayed.

Step 2: Read the text and press Next.



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Step 3: Choose for which users you want to install DAS and press Next.



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Step 4: Choose the folder in which to install the DAS program, and then press Install.



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Step 5: Click Finish to close the DAS installation wizard.



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2.2 USB/RS-232 Adapter Installation Procedure The following USB/RS-232 adapter installation procedure applies to the Vivanco USB SER-N 23425 adapter. The installation procedure for another USB/RS-232 adapter might be slightly different. Adapter Type : Vivanco USB SER-N 23425 (www.vivanco.de) Supported platforms : Win 98SE, 2000, ME, XP, Win7, Vista Supplied with adapter: CD-ROM containing device drivers and installation instruction manual

2.2.1 USB/RS-232 Adapter Installation 1. DonotconnecttheUSBadaptertotheUSBportonyourcomputer!2. InserttheCDROMintoyourCDROMdrive.3. Windows98SE,ME,2000,XP: DoubleclickWinXDriverInstaller.exe

WindowsVista,7: DoubleclickVistaDriverInstaller.exe4. Followtheinstructionsonthescreen5. ConnecttheUSBadaptertoyourcomputer6. Windows98SE: ThesystemwillaskyoutoinserttheWin98SECDROM,andcopy

thenecessaryfiles.WindowsME,2000,XP,Vista,7: Thehardwareisrecognizedandinstalledbythesystem.

Once the system recognized and installed the serial adapter, a system message popped-up saying that a new COM Port (COM4 on our test laptop used for Win7/Vista compatibility tests) is available and ready for use.

2.2.2 DAS Installation Procedure (Win XP/Win 7) Followtheinstructionsin2.1toinstalltheDASprogram. EditthefileC:\ProgramFiles\VibroMeter\DAS\\Ini\das.ini

Replace:ComPort=COM1byComPort=COMn(wherenistheIDoftheCOMportavailablethroughtheUSBadapter)

2.2.3 DAS Installation Procedure (Vista) MakesureallthelatestMicrosoftpatchesandupdatesfortheOShavebeeninstalledproperly.Without

thosepatches,theDASapplicationwillnotwork. CreateaDASfolderintheC:\Users\Publicdirectory. DoubleclickontheDASsetup.exefiletostarttheinstallation. IntheChooseInstallLocationdialog,clicktheBrowsebutton,andselecttheC:\Users\Public\DASfolder.



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The Choose Install Location window should look like this:

Click the Install button to finish the installation. CAUTION: Do not install DAS into the default C:\Program Files\Vibro-Meter\DAS folder. The DAS application will not work when installed into this directory!

Edit the file C:\Users\Public\DAS\\Ini\das.ini:



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Replace ComPort=COM1 by ComPort=COMn (where n is the ID of the COM port available through the USB adapter) Replace AircraftPath=C:\Program Files\Vibro-Meter\DAS\Aircraft\ by AircraftPath=.\DAS\Aircraft\ Replace FadecRecorderDATA=C:\Program Files\Vibro-Meter\DAS\Lbs\Default.lbs by FadecRecorderDATA=.\DAS\Lbs\Default.lbs Make sure TestActive=FALSE

Save your changes and close the editor If an error message pops-up when starting DAS for the 1st time, double-click on C:\Users\Public\DAS\\vcredist_x86.exe which will install the Microsoft Visual Studio 2005 redistributables.



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3 General

3.1 Overview

The DAS (Data Acquisition Software) receives data from the CMC (Central Maintenance Computer) and displays the data in a readable format for the Maintenance personnel. The DAS is compatible with all CMC versions and displays the CMC data accordingly. Detection of CMC versions 10 and higher is performed automatically, while with versions lower than 10, the user must manually perform the detection.

CMC PCSerial Rs232

Display

Files

DAS System Overview

3.2 Functionality The following is a list of the DAS functionality

Download CMC Data, Download Real-time CMC Data, Record CMC Data, Clear CMC Data, Display CMC Data on Screen, Write CMC Data to Files, Print CMC Data.



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3.2.1 Startup sequence

1. When the Application starts up, the Serial Port is initialized. 2. The CMC Version is requested, for versions 10 or higher the version is automatically detected.

3. For older CMC versions, a dialog shown in the figure below is displayed enabling the user to

input the correct CMC version.

4. Following this procedure, the main dialog is displayed to allow the user to select the DAS functions.



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4 Running the DAS program

Step 1: In your computer, double click on the DAS icon.

The DAS program starts and displays the following window.

Step 2: Select one of the buttons to download the CMC data:

Full DAS This option allows full access to all DAS functionalities. Automatic DAS This option performs an automatic downloadind of all

data and stores the data on a floppy disk, if requested. Upon completion the DAS Selection dialog appears.

FADEC Labels This option displays the Preview FADEC Realtime

screen followed by the dialog for selecting Analog or Discrete Labels. Upon completion the DAS Selection dialog appears.

Note: Exit terminates the program



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5 User Interface

The Application is Menu and Dialog based, comprising of several dialogs, one Scrolling view for displaying Download data and two Form views for displaying the FADEC Real-Time Data.

5.1 Menus

Menus enable the selection of the different functions in the Full DAS, with the user selecting with the mouse or keyboard the required menu option, corresponding to the task required to be performed. In the following items, the menus and options available are detailed.



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5.1.1 Main Menu

5.1.2 Download Menu

Provides options to allow the user to select which CMC data shall be verified.

All Performs the download of Maintenance and Exceedance Messages, Trend Data, Exceedance Data, FLS Data, FADEC Snapshot and FADEC Labels.

Trend/Exceedance/FLS Downloads the Trend, Exceedance and FLS Data. Maint_Exceed Message Downloads the Maintenance and Exceedance Messages. FLS Data Downloads the FLS Data. FADEC Snapshot Downloads the FADEC Snapshot. FADEC Labels Downloads all discrete and analog FADEC Labels for all

FADEC sources (1A/1B/2A/2B). Single File Downloads the Exceedance Data, Maintenance and

Exceedances messages, FADEC Snapshot and FADEC labels and stores the data in a single file.



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5.1.3 Preview Menu

Provides options to allow the user to view the data previously downloaded from the CMC. Also activates the Real-time viewing of FADEC Labels.

Maint_Exceed Message Previews the Maintenance and Exceedance Messages. Trend Data Previews the Trend Data. Trend Dig Previews the Trend and Exceedance Data in Dig format. Exceedance Previews the Exceedance Data. FLS Data Previews the FLS Data. FLS Dig Previews the FLS Data in Dig format. FADEC Snapshot Previews the FADEC Snapshot. FADEC Data Recorder Previews the FADEC Data Recorder labels previously

recorded using the Tools/FADEC Data Recorder option. FADEC Real Time Previews the FADEC Labels (Analog or Discrete) in real

time. FADEC Labels Previews the FADEC Labels (Analog and Discrete together)

of FADEC 1A, 1B, 2A or 2B previously downloaded. Message Status Displays the DAS internal memory area status.



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5.1.4 Print Menu

Provides options to allow the user to Print out the data that was downloaded from the CMC.

Maint_Exceed Message Prints out the Maintenance and Exceedance Messages. Exceedance Prints out the Exceedance Data. Trend Data Prints out the Trend Data. Trend Dig Prints out the Trend and Exceedance Data in Dig format. FLS Data Prints out the FLS Data. FLS Dig Prints out the FLS Data in Dig format. FADEC Snapshot Prints out the FADEC Snapshot. FADEC Data Recorder Prints out the FADEC Data Recorder. FADEC Error Files Prints out the FADEC Data Recorder errors results. FADEC Labels Prints out the FADEC Labels (Analog and Discrete together)

of FADEC 1A, 1B, 2A or 2B previously downloaded. Single File Prints out the Exceedance Data, Maintenance and Exceedance

Messages, FADEC Snapshot and FADEC labels stored in a single file.



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5.1.5 Clear Menu

Provides options to allow the user to clear the data that is stored in the CMC.

Maint Message Clears the Maintenance Messages. Exceedance Clears the Exceedance Data and Exceedance Messages. Trend Clears the Trend Data. FLS Clears the FLS Data. FADEC Snapshot Clears the FADEC Snapshot. All Clears all the above data.



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5.1.6 Tools Menu

Provides options to allow the user to record FADEC Labels previously selected and recorded to a file with a specific source, also allowing the visualization of the file that records FADEC bits errors. Configures the font and serial port.

FADEC Data Recorder Opens the FADEC Data Recorder Dialog. View error file Previews the FADEC Data Recorder Error results. Options Allows the user to configure the font and serial interface.

Note: The System Options is available only when activated in the INI file providing the following options:

Save Data, force the data to be re-saved into its corresponding file. Load / Save Raw data, allows later loading of an actual download. Get Version, Gets the CMC version and restarts the program. Generate Test Data, Generates random data used for testing.



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5.1.7 Help Menu

Provides information of the DAS as can be seen in the example.

5.1.8 Exit Menu

Used for exiting the software.



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5.2 Views

5.2.1 Viewing CMC Maintenance and Exceedance Messages

Menu option: Preview->Maint_Exceed_Message

The Scrolling View displays the CMC Maintenance and Exceedance Messages downloaded to the computer.



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5.2.2 Viewing CMC Trend Data

Menu option: Preview->Trend-> Trend Data

The Scrolling View displays the CMC Trend Data downloaded to the computer. Each leg represents the Takeoff /Cruise Trend recorded during one single flight.



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5.2.3 Viewing CMC Trend Dig Data

Menu option: Preview->Trend->Trend Dig

The Scrolling View displays the CMC Trend Dig Data downloaded to the computer.



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5.2.4 Viewing CMC Exceedance data

Menu option: Preview->Exceedance

The Scrolling View displays the CMC Exceedance Data downloaded to the computer.



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5.2.5 Viewing CMC FLS data

Menu option: Preview->FLS->FLS Data

The Scrolling View displays the CMC FLS Data downloaded to the computer.



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5.2.6 Viewing CMC FLS Dig Data

Menu option: Preview->FLS->FLS Dig

The Scrolling View displays the CMC FLS Dig Data downloaded to the computer.



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5.2.7 Viewing CMC FADEC SNAPSHOT Data

Menu option: Preview->FADEC Snapshot

The Scrolling View displays the CMC FADEC Snapshot Data downloaded to the computer.



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5.2.8 Viewing FADEC Data Recorder

Menu option: Preview->FADEC data recorder

The Scrolling View displays the FADEC Data Recorder stored in the computer.

Note: The label data is displayed in Hexadecimal values.



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5.2.9 Viewing FADEC Data recorder error data

Menu option: Tools->View error file The Scrolling View displays the FADEC Data recorder error data.



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5.2.10 Viewing FADEC Realtime Analog Labels

Menu option: Preview->FADEC Real-time ----- Analog selection ----- FADEC Source

The View Real-time Analog Labels displays continuously the CMC FADEC Analog Labels for the FADEC Source Selected (1A, 1B, 2A or 2B).



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Where the meaning for the fields is explained below:

FADEC Source Selected FADEC Source.

A/C Ident Aircraft Identification (via hardware) in the CMC. Flight Aircraft Flight number. Data Contains the label data and description for all the analog

labels. Errors Displays any errors to the CMC. Stop Real-time Stops the downloading of real-time data. Select Labels Allows the user to switch to another analog label or to

the discrete labels. Re-start Re-starts the real-time downloading after it has been

stopped. Das Selection Returns to the Das Selection Dialog.



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5.2.11 Viewing FADEC Realtime Discrete Labels

Menu option: Preview->FADEC Real-time ----- Discrete selection----- FADEC Source

The View Real-time Discrete Labels displays continuously the CMC FADEC Discrete Labels for the FADEC Source Selected (1A, 1B, 2A or 2B).



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FADEC Source Selected FADEC Source.

A/C Ident Aircraft Identification (via hardware) in the CMC. Flight Aircraft Flight number. Update Rate Time difference between the label data, updated only

when the connection to the CMC is working. Data Contains the label data and description for all the

discrete labels. Errors Displays any errors to the CMC. Stop Real-time Stops the downloading of real-time data. Select Labels Allows the user to switch to another discrete label or to

the analog labels. Re-start Re-starts the real-time downloading after it has been

stopped. Das Selection Returns to the Das Selection Dialog.



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5.2.12 Viewing FADEC Labels data

Menu option: Preview->FADEC Labels->FADEC 1A(FADEC 1B, 2A, 2B) The Scrolling View displays the Analog and Discrete FADEC Labels previously downloaded.

Note: *** means the label was not downloaded.



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5.3 Dialogs

All Dialogs allow to the user to enter program options or perform a specific action.

5.3.1 DAS Selection Dialog After startup the following dialog is displayed to allow the user to choose a DAS option.

Where the meaning for the fields is explained below: CMC Version The current CMC version selected or found. Directory Selection Type

Directory selected by Serial or Aircraft number.

Auto Message Clear State

Shows the auto message clear status..

Save to floppy Shows the save to floppy disk status. Change Options This option displays the dialog for changing the startup

options as described: Directory Selection Type: allows the files to be

stored by Tail number or Serial number Auto Message Clear asks the user if the data

already downloaded shall be erased.



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Save to Floppy asks the user if the files already downloaded to the computer shall also be saved in a floppy disk.

Full DAS This option allows full access to all DAS functionalities. Automatic DAS This option performs an automatic download of all data

and store the data on a floppy disk if requested. Upon completion the DAS Selection dialog appears.

FADEC Labels This option displays the Preview FADEC Realtime

screen followed by the dialog for selecting Analog or Discrete Labels. Upon completion the DAS Selection dialog appears.

Exit This option terminates the Program.



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5.3.2 Memory Status Area Dialog This dialog box appears when the following sequence is used: Menu option: Preview->Message Status It displays the status of the DAS internal memory and current files.


Open Opens the displayed file in an editor. Status Indicated the status of the Data Loaded. OK or Cancel Exits the dialog. Clear Calls the DAS clear memory area dialog.



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5.3.3 Clear Memory Areas Dialog

This dialog box appears when the following sequence is used:

Menu option: Preview->Message Status ----- Clear This function is used to clear the internal data in the DAS program, used to erase previous data in the displays.


Clear Clears the internal data in the DAS program. All Selects all areas for clearing.

Cancel Aborts the Clear area operation.



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5.3.4 Directory Selection Type Dialog

The access to the option below is through the Change Button in the DAS Selection screen. This dialog box has the following options:

Directory Selection Type that changes to tail number or serial number the directory name where the files are stored,

Auto Message Clear State Option that selects if the CMC shall be erased automatically or not after an automatic downloading and

Save to Floppy Option that requests or not that the files be recorded to a floppy disk after the downloading is performed.

Note: The OK is used to change the required setting and the Cancel is used to abort any changes made.



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5.3.5 Download Dialog

Shows the state of the current download, allows the user to stop or re-start the download.


Messages Provides messages informing about the downloading

process. Action List of downloads to perform. OK Exits the dialog. Cancel Do not save or clear the data. Serial Break Stops the download. Repeat Restarts the download after an error has occurred.



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5.3.6 FADEC - Label Type Dialog Menu option: Preview->FADEC Realtime or Menu option: DAS Selection Screen->FADEC Labels

Used to selects the FADEC label to be displayed in the real-time mode.


Label Selects Analog or Discrete labels. FADEC Source Selects the FADEC Source to monitor. FADEC Discrete Label Select

Selects which discrete label will be monitored.

OK The selected label is monitored. Cancel The real-time mode is not activated.



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5.3.7 FADEC Data Recorder Dialog Menu option: Tools->FADEC data recorder This dialog records selected FADEC labels of selected sources.


Data File for storing File where the record results will be stored. Browse Selects the path where the record results file is. Label Select File Displays the current file that contains the labels to be

recorded. Duration of recording The time in seconds for which the recording will be

active. Start Record Initiates the data recording. Cancel Aborts the dialog and returns to the Main window. New Opens the FADEC Labels Select dialog allowing the

selection of label(s) and source(s) that will be recorded in the file.

Edit Edits the file created.



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5.3.8 FADEC Labels Select Dialog

Menu option: Tools->FADEC data recorder --- New or Menu option: Tools->FADEC data recorder --- Edit

Displays the screen used to select/edit the FADEC labels.


ALL Selects all labels in its group. Save As Saves the label information in a new file. Save Saves the label information in the current file. Cancel Aborts the changes made.



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6 Files

6.1 DAS Directory Structure By default, the DAS application is installed in C:\Program Files\Vibro-Meter\DAS.

Directory Description

DAS Main project directory containing DAS executable DAS\Aircraft Sub directory to manage Aircraft specific files DAS\Doc Sub directory containing the DAS release notes. DAS\Ini Sub directory containing DAS initialization file DAS\Lbs Sub directory to manage User FADEC Recorder files

6.1.1 Aircraft Contents

The Aircraft directory stores the files with the result of the downloading performed.

6.1.2 Doc Contents The Doc directory contains the DAS release notes file (PDF).

6.1.3 Lbs Contents

The Lbs directory stores the files used for selecting FADEC Labels during a record session. These files are created and used by the DAS software automatically.

6.1.4 Ini File Contents

The Ini directory allows the program to be configured without being recompiled. The following Ini files entries are currently available. Parameter Type Description



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Parameter Type Description AircraftPath PATH Directory where the files will be stored TestActive TRUE If test mode is active AutoClear TRUE If Clear data is to be asked ComPort COM1 For serial port com1 communication FadecRecorderDATA STRING Directory where the Recorder files will be

stored FadecRecorderINTERVAL INTEGER For the FADEC Recorder recording time FadecRecorderLBS FILENAME LBS file last used AircraftNo STRING Current aircraft number TailNo STRING Current tail number PrintFontSize INTEGER Font size used for printing SystemOptions TRUE If the system options are to be available UseTailNumber 0 or 1 1: if the tail number is to be used instead of

aircraft number WindowPosLeft INTEGER Saved window position WindowPosTop INTEGER Saved window position WindowPosRight INTEGER Saved window position WindowPosBottom INTEGER Saved window position AnimationEnabled TRUE If the animation in the status bar is enabled SerialTimeoutShortMs INTEGER Timeout for the serial interface SerialTimeoutLongMs INTEGER Timeout for the serial interface SerialRetries INTEGER Number of retries allows SaveToFloppy TRUE If the save files to disk question is to asked FloppyPath PATH Path to save the floppy files.

6.2 Created Files The downloaded files are stored by the following convention. Filename Used for Maaaaddmmmyyc.dat Maintenance Messages Taaaaddmmmyyc.dat Trend data Taaaaddmmmyyc.dig Trend and Exceedance data without text. Eaaaaddmmmyyc.dat Exceedance data Faaaaddmmmyyc.dat Flight Leg Summary data Faaaaddmmmyyc.dig Flight Leg Summary data, without text Faaaaddmmmyyc.1a FADEC 1A Labels Faaaaddmmmyyc.1b FADEC 1B Labels Faaaaddmmmyyc.2a FADEC 2A Labels Faaaaddmmmyyc.2b FADEC 2B Labels Naaaaddmmmyyc.dat FADEC Fault word Snapshot Saaaaddmmmyyc.dat Single file data,Maint, Exceed, FADEC

Snapshot,FADEC Labels



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Where :

aaaa AC Ident dd day mmm month yy year c Counter

Example: M012322FEB021.dat : Maintanence data, Aircraft ID 0123, 22 Feb 2002, count =1

7 CMC Data

Below is an explanation of how the data is organized, ordered and displayed. For all data type except the real time data there is a Header followed by the data then a checksum. The Header defines

How many bytes are contained in the message, If a CMC memory area is nearly full and a download followed by a Clear is required, The Aircraft Identification, Status of the message.

Each data type contains Leg Status, which has the following values.

UNUSED Leg does not contain any valid data. PREVIOUS Leg contains valid data. LAST Leg contains valid data and is the current Leg in use.

Each data type may contain Data Status, which has the following values.

UNUSED Does not contain any valid data. USED Contains valid data.

7.1 Exceeence Data

The Exceedance Message is split into two areas.

1. Leg Information: Leg Status values of UNUSED , PREVIOUS, LAST



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First Pointer Index to the first data block used in this Leg Last Pointer Index to the last data block used in this Leg

2. Leg Data: Maximum 100 Legs with 10 exceedances in each leg.

The Display order is oldest Leg first, newest leg last.

Note: The Leg Status is a circular buffer

7.2 Trend Data

The Trend Area contains a Maximum of 75 Legs and each leg contains the following.

Leg Status values of UNUSED , PREVIOUS, LAST Engine 1 Takeoff Data Contains Data status and data Engine 2 Takeoff Data Contains Data status and data Engine 1 Cruise Data Contains Data status and data Engine 2 Cruise Data Contains Data status and data

The Display order is oldest Leg first, newest leg last. Note: The Leg Status is a circular buffer

7.3 Maintenance Data

The Maintenance Area contains a maximum of 100 messages. The Display order is newest message first, oldest message last. Note: The Messages are in a circular buffer.

7.4 FLS Data

The FLS Area contains a Maximum of 75 Legs The Display order is oldest Leg first, newest leg last. Note: The Leg Status is a circular buffer



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7.5 FADEC Snapshot Data

The FADEC Snapshot Area contains a Maximum of 10 Legs. The Display order is oldest Leg first, newest leg last. Note: The Leg Status is a circular buffer

7.6 Realtime ARINC 429 Data When Real-time mode is activated, the labels are sent continuously for approximately 5 seconds, after which the real-time mode is switched off and no more data will be received. To receive further labels, the real-time mode must be reactivated to transmit the labels for a further 5 seconds.

7.7 DIG Codes Each set of data has a code that is used in the DIG files according to the following definition:

Code Meaning 00-34 Takeoff Trend 10-31 Cruise Trend 20-18 N1 Exceednace 30-18 N2 Exceedance 40-16 ITT Exceedance 50-15 N1 Vibration Exceedance 60-14 N2 Vibration Exceedance 70-13 Oil Low Pressure Exceedance 80-13 Oil High Temp Exceedance 90-13 Fuel High Temp Exceedance 91-10 FADEC Overtemp A0-46 Flight Leg Summary Dataset 00-00 Unkown

DAS - User Guide

Documents

das pnr

das program installation

new das version

title page

adapter installation

adapter installation

project team leader

application cmc