Honeywell MK VI - Manual (Page 280)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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6.2.16 Sensor Status (273) - GPS
SENSOR STATUS – GPS Source: ARINC 743(A) GPSSU
LABEL (Octal) 273 Units: N/A Max. Range: N/A Approx. LSB: N/A
Data Bits: 11 to 29 = 19 See TABLE + = N/A Sign Bit: N/A Pad Bits: N/A
Transmit Interval (mSec): 1000 Maximum Data Type: Discrete SDI Bits: 9, 10
SENSOR STATUS BIT ASSIGNMENTS
Bit No. DEFINITION
11 MSB of Satellites Visible (16 to 31)
12 DADS Status (*) Present = ‘0’ Not Present = ‘1’
13 DADS Source (*) Primary = ‘0’ Secondary = ‘1’
14 IRS/FMS Status Present = ‘0’ Not Present = ‘1’
15 IRS/FMS Source Primary = ‘0’ Secondary = ‘1’
16 - 19 Number of Satellites Visible (0 to 15)
20 - 23 Number of Satellites Tracked (0 to 15)
24 - 25 Current System in Use 00 = GPS
10 = GLONASS
11 = GPS/GLONASS
01 = Spare
26 - 28 Operational Mode 000 = Self Test Mode
001 = Initialization Mode
010 = Acquisition Mode
011 = Navigation Mode
100 = Altitude/Clock Aiding Mode
101 = Differential Mode
110 = Direction/Speed Aiding Mode
111 = Fault
29 MSB of Satellites Tracked (16 to 31)
(*) = DADS Input is NOT required if ALTITUDE Data to GPSSU Sensor is Received from IRS/FMS Inputs.
6.2.17 Universal Time Correlation (125) - GPS
UNIVERSAL TIME CORRELATION (UTC) (BCD) Source: ARINC 743(A) GPSSU
LABEL (Octal) 125 Units: Hours:Minutes Max. Range: See NOTE 1 Approx. LSB: 0.1 Minute
Data Bits: See NOTE 2 + = N/A Sign Bit: N/A Pad Bits: N/A
Transmit Interval (mSec): 1000 Maximum Data Type: BCD SDI Bits: 9, 10
NOTE 1: Maximum value = 23:59.9
NOTE 2: BCD BIT Assignments per Table below:
UNIVERSAL TIME CORRELATION BIT ASSIGNMENTS
BIT NO. DEFINITION (CFDS/GPS) DEFINITION (CAIMS)
11 - 14 Tenths of Minutes UNITS of Minutes
15 - 18 UNITS of Minutes TENS of Minutes
19 - 22 TENS of Minutes UNITS of Hours
23 - 26 UNITS of Hours TENS of Hours
27 - 29 TENS of Hours N/A
6.2.18 Date (260) - GPS
DATE Source: [AIRBUS] - ARINC 604 CFDS/ CMC/ [GPS] - ARINC 743(A) GPSSU
LABEL (Octal) 260 Units: Day:Month:Year Max. Range: N/A Approx. LSB: 1 Day
Data Bits: 11 to 29 = 19 See NOTE 1 + = N/A Sign Bit: N/A Pad Bits: N/A
Transmit Interval (mSec): 1000 Maximum Data Type: BCD SDI Bits: 9, 10
NOTE 1: BITS 11 to 14 (4) = UNITS of the YEAR (0 to 9)
BITS 15 to 18 (4) = TENS of the YEAR (0 to 9)
BITS 19 to 22 (4) = UNITS of the MONTH (0 to 9)