ESLD (ECAM SYSTEM LOGIC DATA)
AIRBUS A318/A319/A320/A321:     HOW TO USE
REV. DATE : 01-Feb-2016
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                          ECAM System Logic Data
                                                   ( CAUTION:
                          ( THE DESCRIPTION OF THE SYSTEM LOGIC GIVEN IN THIS PRODUCT IS
                            NOT EXHAUSTIVE AND DOES NOT COVER THE TOTAL SYSTEM LOGIC.
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                             IT IS PROVIDED ONLY AS AN AID TO HELP YOU UNDERSTAND THE
                                      SYSTEM AND TROUBLESHOOT THE AIRCRAFT.
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                           ECAM System Logic Data
                          ( The ESLD can be used to find the following information:
                                (   Required computer inputs
                                (   Applicable computer logic
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                                (   Type of computer input (digital, ARINC, etc.)
                                (   Messages (text code)
                                (   Procedure and status messages
                                (   Color of messages
                                (   Flight phase inhibition
                                (   ARINC label data
                                (   Aural warning generation data
                                (   Overhead panel annunciator light data
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                                ECAM System Logic Data
                          ( The ESLD Covers :
                                  ( Chapter 31-51:
                                      ( ESLD FWS Description/Operation
                                      ( Warning index
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                                      ( Contains each warning criteriom (warning-page presentation (corresponds to ATA
                                        31-51-00 to 31-51-77))
                                      ( FWC Display Logic
                                  ( Chapter 31-52:
                                      ( FWC Description/Operation
                                      ( Describes and details the FWC input/output signals
                                      ( Describes the FWC connector pin assignment
                                  ( Chapter 31-54:
                                      ( SDAC Description/Operation
                                      ( Describes and details the SDAC input/output signals
                                      ( Describes the SDAC connector pin assignment
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                                 ECAM System Logic Data
                          ( I ) ESLD Bookmark
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                                                ESLD FWS Description /Operation
                                                Access to Warning Criteria page and FWC Display Logic through the alarm index
                                                Access to Warning Criteria pages
                                                Access to FWC Display Logic
                                                ESLD FWC Description /Operation
                                                FWC Pin Assignment
                                                FWC input/output signals
                                                ESLD SDAC Description /Operation
                                                SDAC Pin Assignment
                                                SDAC input/output signals
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                                 ECAM System Logic Data
                          ( II ) FIND Command Key
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                                1. The Find command key is used for quick access to specific data.
                                2. You can select the “Match Whole Word Only” box if you want that the information you enter
                                   matches exactly the writing format of the source data.
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                                   ECAM System Logic Data
                          ( III) Copy of data :
                            A. “ T ” function (       ):
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                               •1. Use the “ T” function
                              •2. Drag the pointing device and highlight the data you want to copy
                              •3. Press Ctrl-C
                              •4. Get access to the file that may contain the data
                              •5. Press Ctrl-V in the find funtion (        )
                              •6. Search Result is hightlighted in blue
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                                  ECAM System Logic Data
                          ( IV ) Warning Index menu:
                            A. Search function (         ): Example: Warning “AVNCS SYS FAULT”
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                              •1. Use the “ Find ” Function
                              •2. Type “AVNCS SYS FAULT ”
                              •3. Click on Find
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            A. Search function : Example: Warning “AVNCS SYS FAULT ”
                              •4. Search Result is Highlighted in Blue
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                              •5. Drag the pointing device in corresponding area (blue box) and click
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            A. Search function : Example: Warning “AVNCS SYS FAULT ”
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                              •6. Associated Warning Criteria page is displayed
                              •7 Read the Warning Criteria page effectivity
                                 ST1 = applies to all A320 aircraft
                                 ST2 = applies to all A321 aircraft
                                 ST3 = applies to all A319 aircraft
                                 ST4 = applies to all A318 aircraft
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                               ECAM System Logic Data
                          A. Search function (Cont’d): In case of a restricted effectivity, do the following steps:
                            •7 (a) . Read the Warning Criteria page effectivity (         )
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                            •7 (b). Drag the pointing device in corresponding area and click
                            •7 (c). Next Warning Criteria page with effectivity change is displayed (   ) if any ...
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                               ECAM System Logic Data
                          A. Search function (Cont’d): In case of a restricted engine effectivity, do the following steps:
                            •7 (d) . Read the Warning Criteria page effectivity (              )
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                            •7 (e). Drag the pointing device in corresponding area and click (next page)
                            •7 (f). Next Warning Criteria page with engine effectivity change is displayed (          ) if any ...
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            A. Search function : Example: Warning “AVNCS SYS FAULT ”
                              •8. Drag the pointing device in corresponding area (blue box) and click
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                              •9. Associated Logic diagram is displayed.
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            A. Search function : Example: Warning “AVNCS SYS FAULT ”
                                   10. Drag the pointing device in corresponding area and click
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                                   •11. Associated alarm text is displayed
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                                  ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            B. Part description:
                                   Each Logic Page is divided into two parts: Example: Warning “AVNCS SYS FAULT ”
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                            B.1. System Logic Part (logic diagram)
                                   corresponds to the logic number
                                   correspond to:
                                   (a) the title of the alarm
                                   (b) or the A/C warning wording
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                                  ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                            B. Part Description:
                                   Each Logic Page is divided into two parts: Example: Warning “AVNCS SYS FAULT ”
                            B.2. Typical System Logic Page
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                                    (second part): Displayed Message
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d)
                            C. Meaning of data logics: Example: Warning “AVNCS SYS FAULT ”
                                                                       Message Generation Logic
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                                                         Inputs
                                                                                             Operational data
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d)
                                 C. 1. Detailed information: Example: Warning “AVNCS SYS FAULT ”
                                            Inputs:
                                            SDAC/003-00/23#I = Input source/ARINC Label-SDI/BIT#Logic 1 or 0
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                                            AVIONICS VENT FAULT = Signal name
                                            VAVF = Signal code
                                                 or         = Type of inputs
                                            Message Generation Logic
                                            Operational data
                                                      Aural warning
                                                      Visual warning
                                                      Text code (text code transmitted in ARINC 429 format
                                                      via labels 112 (       ) and 357 (       ))
                                                  DU system page
                                                  Flight phase inhibition
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d)
                                 C.2. Meaning of main typical signals symbols of a FWC Display Logic page
                                              Input signals:
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                                                  = Boolean value: FWC input bus            = Incoming discrete from FWC connector
                                                  = Analog Input                           = Numerical value taken from SDAC or another BUS
                                              Internal signals
                                                 = Incoming signal logic sheet              = Incoming numerical value from another sheet
                                              Output external signals
                                                 = Out boolean value available for processing
                                                 = Outgoing numerical value available for processing
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                                 ECAM System Logic Data
                          ( IV ) Warning Index menu (Cont’d):
                             D. Displayed text: Example: Warning “AVNCS SYS FAULT ”
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                                                           Displayed text       VENT = Heading
                                                                                AVCNS SYS FAULT = Title of the ECAM warning
                                                            Text
                                                            Color
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                                  ECAM System Logic Data
                          ( V ) Warning Criteria menu:
                            A. Search function (         ): Example: Warning “AVNCS SYS FAULT”
                              •1. Use the “ Find ” Function
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                              •2. Type “AVNCS SYS FAULT ”
                              •3. Click on Find
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                                  ECAM System Logic Data
                          ( V ) Warning Criteria menu (Cont’d): :
                            A. Search function : Example: Warning “AVNCS SYS FAULT”
                              •4. Search Result is Highlighted in Blue
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                              •5. The requested Warning Criteria page is displayed (with “AVNCS SYS FAULT” highlighted in blue).
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                                  ECAM System Logic Data
                          ( VI ) FWC Display Logic menu:
                          A. Search function: Example: Signal Name “VAVF ”
                               •1. Use the “ Find ” Function
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                               •2. Type the Signal Name “VAVF”
                               •3. Click on Find
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                                 ECAM System Logic Data
                          ( VI ) FWC Display Logic menu (Cont ’d):
                           A. Search function: Example: Signal Name “VAVF ”
                              •4. Search Result is Highlighted in Blue
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                              •5. The requested VAVF signal is displayed on its associated FWC Display Logic page
                                                          VAVF
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                                  ECAM System Logic Data
                          ( VI ) FWC Display Logic menu (Cont ’d):
                           B. Search function: Example: find all logics with signal “VAVF” as an entry in the FWC Display Logic menu
                              •1. Click on the FWC Display Logic menu of the bookmark to return to the first page of this index:
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                              •2. Click on the ”Hand Tool” section (      ) (do steps 2. and 3. only if your previous data is always highlighted
                                in blue in the FWC Display Logic menu)
                              •3. Then click on the file of the FWC Display Logic page: now the first page of the FWC Display Logic file is active
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                                  ECAM System Logic Data
                          ( VI ) FWC Display Logic menu (Cont ’d):
                            B. Search function: Example: find all logics with signal “VAVF” as an entry in the FWC Display Logic menu
                               •4. Do steps 1., 2. and 3. in para. (VI), A. with “VAVF“
                               •5. Search Result is Highlighted in Blue
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                               •6. The requested logic of “VAVF“ signal is displayed on associated FWC Display Logic page
                                                                               VAVF signal
                               •7. Click on “Find Again“ in the Find Function as many times as necessary to have all logics linked “VAVF“ signal
                               •8. As soon as the end of the FWC Display Logic menu is reached, it means that you are on the next menu
                                  (see para. ( VI ), C.: tip to know when you have reached the end of the FWC Display Logic menu)
                               9. Stop the find function (click on Cancel)
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                                 ECAM System Logic Data
                          ( VI ) FWC Display Logic menu (Cont ’d):
                            C. Tip to avoid searching a data in a menu other than the one selected
                                Example: search signal “VAVF” in the FWC Display Logic menu
                                1. Click on the menu just below FWC Display Logic
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                                2. Record the page number of the index page, e.g. 4109:
                                                                           It means that the last page of the FWC Display Logic menu is 4108
                                3. Click on the FWC Display Logic menu
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                                 ECAM System Logic Data
                          ( VI ) FWC Display Logic menu (Cont ’d):
                            C. Tip to avoid searching a data in a menu other than the one selected
                                Example: search signal “VAVF” in the FWC Display Logic menu
                                4. Do all steps in para. (VI), B.
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                                5. When the last existing “VAVF“ signal is found in the FWC Display Logic menu, the index page
                                  number continues to increment
                                6. As soon as page 4109 appears, it means that you are on the next menu (next menu is FWC Acquisition/Interface)
                                   and that no other “VAVF“ signal has been found
                                7. Stop the find function (click on Cancel)
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                                 ECAM System Logic Data
                          ( VII ) FWC Signals menu:
                           A. FWC Signals menu (Search function) : Example: Signal Name “VAVF ”
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                              •1. Use the “ Find ” Function
                              •2. Type the Signal Name “VAVF”
                              •3. Click on Find
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                                    ECAM System Logic Data
                          ( VII ) FWC Signals menu (Cont ’d):
                            A. FWC Signals menu (Search function) : Example: Signal Name “VAVF ”
                              •4. Result is Highlighted in Blue
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                              •5.
                                                      : Signal identification                      : Source name
                                                      : Label-SDI/Bit input                        : ATA chapter
                                                      : Signal Type                                : Wiring Code
                                                      : Signal Kind I/O = Input/Output             : FWC Input Connector/Pin
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                                 ECAM System Logic Data
                          ( VIII ) FWC Connector menu:
                           A. FWC Connector menu: Example: Signal Name “VAVF ”:
                                                     allocation from FWC Signal Index:
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                                                              FWC connector pin assignment for “VAVF signal”:
                                    is on Left Medium (Middle) Plug (LMP) 04,JK and Right Medium (Middle) Plug (RMP) 04,AB (not shown)
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                                    ECAM System Logic Data
                          ( IX ) SDAC Signals Index :
                            A. SDAC Signals menu (Search function) : Example: Signal Name “VAVF ”
                              •1. Result is Highlighted in Blue
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                              •2.
                                                      : Signal identification                       : Source name
                                                      : Label-SDI/Bit input                         : ATA chapter
                                                      : Signal Type                                 : SDAC Input Connector/Pin
                                                      : Signal Kind I/O = Input/Output
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                                 ECAM System Logic Data
                          ( X ) SDAC Connector menu:
                           A. SDAC Connector menu: Example: Signal Name “VAVF ” :
                                                    allocation from SDAC Signal Index:
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                                               SDAC connector pin assignment for “VAVF signal”: is on Right Top Plug (RTP) 12C
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                          ECAM System Logic Data
                                          ( Summary
                          ( (example for “AVNCS SYS FAULT” ECAM warning)
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                                     (Refer to Warning Index menu
                                    ( Refer to Warning Criteria menu
                                    (Refer to FWC Display Logic menu
                                      (Refer to FWC Signals menu
                                     (Refer to FWC Connector menu
                                     (Refer to SDAC Signals menu
                                    (Refer to SDAC Connector menu
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