---------------------------------------------------------------
Column | Description
---------------|-----------------------------------------------| is related to the ARINC 429 data bus. This | shows the maximum value of the parameter that | can be transferred on the bus. This | depends on the number of data bits (see | column DATA BITS) and the resolution ('R') of | the parameter (see column ACCURACY). | The second one, with no specific indication, | shows the normal operational range of the | parameter. | The third one is related to the ARINC 429 | Discrete Data Words. There are two states: | 'bit status 0' or 'bit status 1'. They | indicate the true condition of the | corresponding data word bit position.
---------------|------------------------------------------------4th | ACCURACY
ACCURACY |
| Two different types of values are shown
| in this column:
| The first one, indicated by an 'R'
| (RESOLUTION) is related to the ARINC
| 429 data bus. It also shows the
| resolution of the data word. The second
| one, with no specific indication, shows
| the total accuracy of the parameter.
---------------|-----------------------------------------5th | SIGN BIT
SIGN BIT |
| This column shows whether a sign bit
| is available and in which bit position
| of the data word it is situated.
---------------|-----------------------------------------6th | DATA BITS
DATA BITS |
| Describes the number of data bits not
| including the sign bit. 'A' and a number
| means the discrete bit position in the
| ARINC 429 data word.
| For BCD coded data words the number of
| significant data digits is shown,
| indicated by '(1)'.
---------------|----------------------------------------------7th | UPD/sec UPD/sec |
---------------------------------------------------------------
Column | Description
---------------|-----------------------------------------------| This column shows how many times the | parameter will be transmitted by the source | system.
---------------|----------------------------------------------8th | CODE
CODE |
| BNR = binary data word
| BCD = binary coded decimal data word
| ISO = data word coded in ISO 5 Code
| DIS = discrete data word
| HEX = hexadecimal coded
| OCT = octal coded
| HYB = mixed code;
| e.g. : bit 11 to 16 DIS
| bit 17 to 28 BNR
---------------|----------------------------------------------9th | ALPHA CODING
ALPHA CODING |
| This column shows the mnemonic for the
| parameter (if available). By entering
| this code via the MCDU, the current
| parameter-value will be shown on the
| display. The value from both systems
| (if available) will be shown.
---------------|----------------------------------------------
10th | This column shows the source origin, its
Source | bus number, ATA Ref., and its label.
EQPT |
BUS NR |
ATA. REF |
CONV |
---------------|---------------------------------------------- D. ECB APU Parameter List EQPT: 7A
-------------------------------------------------------------------------------| PARAMETER LIST PARAMETER CHARACTERISTICS (NUMERIC) | -------------------------------------------------------------------------------|EQ.SYS.LAB.SDI|PARAMETER | WORD RANGE |UNIT|SIG |BITS|XMSN|CODE|ALPHA|SOURCE | | |DEFINITION| OPER RANGE | |BIT | |INTV| |CODE |ORIGIN | | |(*=REMARK)| RESOLUTION | | | | | | |BUS No.| | |(X=NOTE) | ACCURACY | | | | | | |ATA REF| | | | | | | | | | |CONV | -------------------------------------------------------------------------------|1.004.01 |Perfor-| | | |5(1)| 1 |BCD |PFAD | | | |mance | | | | | | | | | | |Adjust-| cold day | | | | | | | | | |ments | hot day | | | | | | | | | | MES| bit 11-14| | | | | | | | | | EGT| bit 15-18| | | | | | | | | | ECS| bit 19-22| | | | | | | | | | ECS| bit 23-26| | | | | | | | | | |Cool down | | | | | | | | | | |time | | | | | | | | | | | bit 27-29| | | | | | | | | | | 1 = 0 |SEC | | | | | | | | | | 2 = 30 |SEC | | | | | | | | | | 3 = 60 |SEC | | | | | | | | | | 4 = 90 |SEC | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| |1.037.01 |Discrete | | | | 14 | 4 |DIS |ADW1 | | | |status | | | | | | | | | | |word #1 | | | | | | | | | | |----------|------------|----|----|----|----|----|-----|-------| | |APU bleed |bit status 1| | |#11 | | | | | | |valve open| | | | | | | | | | |----------|------------|----|----|----|----|----|-----|-------| | |APU bleed |bit status 1| | |#12 | | | | | | |valve | | | | | | | | | | |closed | | | | | | | | | | |----------|------------|----|----|----|----|----|-----|-------| | |APU fuel |bit status 1| | |#13 | | | | | | |low pres- | | | | | | | | | | |sure | | | | | | | | | | |----------|------------|----|----|----|----|----|-----|-------| | |APU air |bit status 1| | |#14 | | | | | | |intake | | | | | | | | | | |flap open | | | | | | | | | | |----------|------------|----|----|----|----|----|-----|-------| | |APU air |bit status 1| | |#15 | | | | |
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