Arinc 429 Iru Discrete Word (Octal Label 270) - Honeywell SPZ-8000 Maintenance Manual

BIT(S) FUNCTION
O STATE 1 STATE
o-7 Label bits
.- --
8
Source destination identifier Open
(SDI) #2
Gnd
9 SDI #1
Open Gnd
10
Align
mode
Not align mode Align
mode
11
Attitude
mode Not attitude
mode Attitude
mode
12 NAV mode
Not
NAV
mode
NAV mode
13
Set heading
Not set heading Set heading
14 Attitude invalid (IRU FAULT
Attitude valid Attitude not valid
annunciator on)
15 BATT fail
Not BATT fail
BATT fail
16
ON BATT
Not ON BATT ON BATT
17
Air data input invalid
Air data valid Air data invalid
18 IRU
fault (BITE)
Not IRU fault
IRU fault
19
BATT fail (ON BATT)
Not BATT fail BATT fail
20
Alignment fault
hb~l~lignment Alignment fault
21 No initialization
Initialized Not initialized
22
Excessive motion (Align mode)
No40i~~cessive Excessive motion
23
Air data computer (ADC)
or
t'4g'41$DC or IRU ADC
or
IRU fault
IRU fault
24 Not used
25-27 Time
to NAV
RDY:
BITS
Minutes 25X27
10-6
111
6-5 p;
5-4
4-3
001
;-:
110
;;:
1:0
NAV
RDY 000
28 Not used
-- --
29-30 SSM
--
--
31
Parity, odd
-- --
I
ARINC 429 IRU Discrete Word (Octal Label 270)
Table 2-10
22-14-00
Page 128.1
Apr 15/93
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